+ Welcome to OAS MCP Tools Weaver, a powerful Spring Boot application that serves as a dynamic tool provider for AI models. It parses an OpenAPI 3.0 specification at startup and exposes each API operation as a "tool" that can be invoked by a Large Language Model (LLM). This bridges the gap between your existing RESTful APIs and modern LLMs, enabling them to interact with your services through the standardized Model-Context-Protocol (MCP).
+
+
+---
+
+## ποΈ Architecture & Workflow
+LLMs can be augmented with "tools" that allow them to interact with external systems. The Model-Context-Protocol (MCP) provides a standard for defining these tools. The **OAS MCP Tools Weaver** is a Spring Boot server that dynamically exposes your OpenAPI-defined APIs as MCP-compliant tools for LLMs.
+This server dynamically exposes your OpenAPI-defined APIs as tools for LLMs.
+
+The workflow is simple:
+
+1. **Configuration**: You place your OpenAPI 3.0 specification file (`spec.json` or `spec.yaml`) inside the application's resources and configure a `ToolCallbackProvider` bean for it.
+2. **Startup**: On startup, the Spring Boot application parses the OpenAPI specification, extracting API endpoints, parameters, and request/response schemas.
+3. **Tool Exposure**: The server dynamically creates and exposes an MCP-compliant "tool" for each API operation. It intelligently handles complex schemas (e.g., `oneOf`, `allOf`) to make them understandable to LLMs.
+4. **Interaction**: An LLM can now discover and invoke these tools. The server translates the LLM's tool call into a live HTTP request to your backend API, including authentication, and returns the result.
+
+
+
+
+
+## β¨ Key Features
+
+* β **Dynamic Tool Serving**: No need to manually generate static tool files. Tools are created at runtime directly from your OAS.
+* β **OpenAPI 3.0 Support**: Works with the industry-standard API specification format.
+* β **Intelligent Schema Handling**: Simplifies complex JSON schemas (`oneOf`, `allOf`) from the OAS, making them easier for LLMs to consume.
+* β **Enterprise Ready**: Built with Java and Spring Boot, a robust and widely-adopted stack for enterprise-grade applications.
+* β **MCP Compliant**: Adheres to the Model-Context-Protocol for standardized tool interaction with LLMs.
+
+## π Getting Started
+
+Follow these steps to install and run the tool.
+
+### Prerequisites
+
+* Java 17 or higher
+* Apache Maven
+* An OpenAPI 3.0 specification file for your API.
+
+### Installation
+
+1. **Clone the repository:**
+ ```bash
+ git clone https://github.com/your-repo/oas-mcp-tools-weaver.git
+ cd oas-mcp-tools-weaver/mcpserver
+ ```
+
+2. **Place your OpenAPI Specification:**
+ Copy your OpenAPI specification file (e.g., `my-api.yaml`) into the `src/main/resources/openapi/` directory.
+
+3. **Configure the Tool Provider:**
+ You must create a `ToolCallbackProvider` bean for your OpenAPI specification. Open the relevant Spring configuration file and add a bean definition similar to the following:
+
+ ```bash
+ @Bean
+ ToolCallbackProvider myApiTools(OASSchemaHandler schemaProcessor, RestTemplate restTemplate) {
+ return new DynamicOpenApiToolCallbackProvider("/openapi/my-api.yaml", schemaProcessor, restTemplate, apiUrlEnv);
+ }
+ ```
+
+### Usage
+
+The server is run as a standard Spring Boot application using Maven.
+
+1. **Set Environment Variables:**
+ Before running, ensure you have set the required environment variables.
+ ```bash
+ export API_ENV_URL="https://your.api.backend.com"
+ ```
+
+2. **Run the Application:**
+ Navigate to the `mcpserver` directory and execute the following Maven command:
+ ```bash
+ mvn spring-boot:run
+ ```
+
+ The server will start (by default on port `8081`) and will be ready to serve tools to your LLM.
\ No newline at end of file
diff --git a/tools/oas-mcp-tools-weaver/architecture.png b/tools/oas-mcp-tools-weaver/architecture.png
new file mode 100644
index 00000000000..6a6bc344cff
Binary files /dev/null and b/tools/oas-mcp-tools-weaver/architecture.png differ
diff --git a/tools/oas-mcp-tools-weaver/mcpserver/Dockerfile b/tools/oas-mcp-tools-weaver/mcpserver/Dockerfile
new file mode 100644
index 00000000000..99e35aecbcf
--- /dev/null
+++ b/tools/oas-mcp-tools-weaver/mcpserver/Dockerfile
@@ -0,0 +1,45 @@
+# Copyright 2025 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# Use a multi-stage build to keep the final image size small
+
+# Stage 1: Build the application
+FROM maven:3.8.6-eclipse-temurin-17 AS builder
+
+# Set the working directory inside the container
+WORKDIR /app
+
+# Copy the pom.xml and install dependencies
+COPY pom.xml .
+RUN mvn dependency:go-offline
+
+# Copy the source code
+COPY src ./src
+
+# Package the application
+RUN mvn package -DskipTests
+
+# Stage 2: Create the final image
+FROM eclipse-temurin:17-jdk-jammy
+
+# Set the working directory inside the container
+WORKDIR /app
+
+# Copy the jar file from the builder stage
+COPY --from=builder /app/target/*.jar app.jar
+
+# Expose port 8080
+EXPOSE 8081
+
+# Run the application
+ENTRYPOINT ["java", "-jar", "app.jar"]
\ No newline at end of file
diff --git a/tools/oas-mcp-tools-weaver/mcpserver/README.md b/tools/oas-mcp-tools-weaver/mcpserver/README.md
new file mode 100644
index 00000000000..5aa726c9860
--- /dev/null
+++ b/tools/oas-mcp-tools-weaver/mcpserver/README.md
@@ -0,0 +1,41 @@
+# MCP Server
+
+## Introduction
+
+This MCP Server is a Spring Boot application that serves as a dynamic tool provider for AI models, enabling them to interact with backend APIs. It works by parsing an OpenAPI specification at startup and creating a corresponding "tool" for each API operation defined.
+
+These tools can then be invoked by a Large Language Model (LLM) to perform actions, effectively allowing the LLM to use the API to fulfill tasks. The server handles the translation from the LLM's tool call into a live HTTP request to the target API, including authentication. A key feature is its ability to process and simplify complex JSON schemas (e.g., `oneOf`, `allOf`) from the OpenAPI specification, making them easier for the LLM to understand and use correctly.
+
+## Architecture Diagram
+
+
+
+## How to Run
+
+1. **Prerequisites**:
+ * Java 17 or later
+ * Apache Maven
+
+2. **Configuration**:
+
+ * Before starting the application, keep your OpenAPI Specs under [src/main/resources/openapi/](src/main/resources/openapi/) directory.
+ * Ensure you're creating a ToolCallbackProvider Bean for your OAS. For example:
+
+ ```java
+ @Bean
+ ToolCallbackProvider flightSearch(OASSchemaHandler schemaProcessor, RestTemplate restTemplate) {
+ return new DynamicOpenApiToolCallbackProvider("/openapi/your-oas-spec.yaml", schemaProcessor, restTemplate, apiUrlEnv);
+ }
+ ```
+
+ * Make sure you have set the below environment variable:
+
+ * `API_ENV_URL`: Your API Environment URL value.
+
+3. **Run the application**:
+
+ Navigate to the project's root directory and execute the following Maven command:
+ ```bash
+ mvn spring-boot:run
+ ```
+ The server will start on the port `8081`.
\ No newline at end of file
diff --git a/tools/oas-mcp-tools-weaver/mcpserver/architecture_diagram.png b/tools/oas-mcp-tools-weaver/mcpserver/architecture_diagram.png
new file mode 100644
index 00000000000..5f80c403d9d
Binary files /dev/null and b/tools/oas-mcp-tools-weaver/mcpserver/architecture_diagram.png differ
diff --git a/tools/oas-mcp-tools-weaver/mcpserver/mvnw b/tools/oas-mcp-tools-weaver/mcpserver/mvnw
new file mode 100644
index 00000000000..e9cf8d3307b
--- /dev/null
+++ b/tools/oas-mcp-tools-weaver/mcpserver/mvnw
@@ -0,0 +1,295 @@
+#!/bin/sh
+# ----------------------------------------------------------------------------
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership. The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied. See the License for the
+# specific language governing permissions and limitations
+# under the License.
+# ----------------------------------------------------------------------------
+
+# ----------------------------------------------------------------------------
+# Apache Maven Wrapper startup batch script, version 3.3.3
+#
+# Optional ENV vars
+# -----------------
+# JAVA_HOME - location of a JDK home dir, required when download maven via java source
+# MVNW_REPOURL - repo url base for downloading maven distribution
+# MVNW_USERNAME/MVNW_PASSWORD - user and password for downloading maven
+# MVNW_VERBOSE - true: enable verbose log; debug: trace the mvnw script; others: silence the output
+# ----------------------------------------------------------------------------
+
+set -euf
+[ "${MVNW_VERBOSE-}" != debug ] || set -x
+
+# OS specific support.
+native_path() { printf %s\\n "$1"; }
+case "$(uname)" in
+CYGWIN* | MINGW*)
+ [ -z "${JAVA_HOME-}" ] || JAVA_HOME="$(cygpath --unix "$JAVA_HOME")"
+ native_path() { cygpath --path --windows "$1"; }
+ ;;
+esac
+
+# set JAVACMD and JAVACCMD
+set_java_home() {
+ # For Cygwin and MinGW, ensure paths are in Unix format before anything is touched
+ if [ -n "${JAVA_HOME-}" ]; then
+ if [ -x "$JAVA_HOME/jre/sh/java" ]; then
+ # IBM's JDK on AIX uses strange locations for the executables
+ JAVACMD="$JAVA_HOME/jre/sh/java"
+ JAVACCMD="$JAVA_HOME/jre/sh/javac"
+ else
+ JAVACMD="$JAVA_HOME/bin/java"
+ JAVACCMD="$JAVA_HOME/bin/javac"
+
+ if [ ! -x "$JAVACMD" ] || [ ! -x "$JAVACCMD" ]; then
+ echo "The JAVA_HOME environment variable is not defined correctly, so mvnw cannot run." >&2
+ echo "JAVA_HOME is set to \"$JAVA_HOME\", but \"\$JAVA_HOME/bin/java\" or \"\$JAVA_HOME/bin/javac\" does not exist." >&2
+ return 1
+ fi
+ fi
+ else
+ JAVACMD="$(
+ 'set' +e
+ 'unset' -f command 2>/dev/null
+ 'command' -v java
+ )" || :
+ JAVACCMD="$(
+ 'set' +e
+ 'unset' -f command 2>/dev/null
+ 'command' -v javac
+ )" || :
+
+ if [ ! -x "${JAVACMD-}" ] || [ ! -x "${JAVACCMD-}" ]; then
+ echo "The java/javac command does not exist in PATH nor is JAVA_HOME set, so mvnw cannot run." >&2
+ return 1
+ fi
+ fi
+}
+
+# hash string like Java String::hashCode
+hash_string() {
+ str="${1:-}" h=0
+ while [ -n "$str" ]; do
+ char="${str%"${str#?}"}"
+ h=$(((h * 31 + $(LC_CTYPE=C printf %d "'$char")) % 4294967296))
+ str="${str#?}"
+ done
+ printf %x\\n $h
+}
+
+verbose() { :; }
+[ "${MVNW_VERBOSE-}" != true ] || verbose() { printf %s\\n "${1-}"; }
+
+die() {
+ printf %s\\n "$1" >&2
+ exit 1
+}
+
+trim() {
+ # MWRAPPER-139:
+ # Trims trailing and leading whitespace, carriage returns, tabs, and linefeeds.
+ # Needed for removing poorly interpreted newline sequences when running in more
+ # exotic environments such as mingw bash on Windows.
+ printf "%s" "${1}" | tr -d '[:space:]'
+}
+
+scriptDir="$(dirname "$0")"
+scriptName="$(basename "$0")"
+
+# parse distributionUrl and optional distributionSha256Sum, requires .mvn/wrapper/maven-wrapper.properties
+while IFS="=" read -r key value; do
+ case "${key-}" in
+ distributionUrl) distributionUrl=$(trim "${value-}") ;;
+ distributionSha256Sum) distributionSha256Sum=$(trim "${value-}") ;;
+ esac
+done <"$scriptDir/.mvn/wrapper/maven-wrapper.properties"
+[ -n "${distributionUrl-}" ] || die "cannot read distributionUrl property in $scriptDir/.mvn/wrapper/maven-wrapper.properties"
+
+case "${distributionUrl##*/}" in
+maven-mvnd-*bin.*)
+ MVN_CMD=mvnd.sh _MVNW_REPO_PATTERN=/maven/mvnd/
+ case "${PROCESSOR_ARCHITECTURE-}${PROCESSOR_ARCHITEW6432-}:$(uname -a)" in
+ *AMD64:CYGWIN* | *AMD64:MINGW*) distributionPlatform=windows-amd64 ;;
+ :Darwin*x86_64) distributionPlatform=darwin-amd64 ;;
+ :Darwin*arm64) distributionPlatform=darwin-aarch64 ;;
+ :Linux*x86_64*) distributionPlatform=linux-amd64 ;;
+ *)
+ echo "Cannot detect native platform for mvnd on $(uname)-$(uname -m), use pure java version" >&2
+ distributionPlatform=linux-amd64
+ ;;
+ esac
+ distributionUrl="${distributionUrl%-bin.*}-$distributionPlatform.zip"
+ ;;
+maven-mvnd-*) MVN_CMD=mvnd.sh _MVNW_REPO_PATTERN=/maven/mvnd/ ;;
+*) MVN_CMD="mvn${scriptName#mvnw}" _MVNW_REPO_PATTERN=/org/apache/maven/ ;;
+esac
+
+# apply MVNW_REPOURL and calculate MAVEN_HOME
+# maven home pattern: ~/.m2/wrapper/dists/{apache-maven-,maven-mvnd--}/
+[ -z "${MVNW_REPOURL-}" ] || distributionUrl="$MVNW_REPOURL$_MVNW_REPO_PATTERN${distributionUrl#*"$_MVNW_REPO_PATTERN"}"
+distributionUrlName="${distributionUrl##*/}"
+distributionUrlNameMain="${distributionUrlName%.*}"
+distributionUrlNameMain="${distributionUrlNameMain%-bin}"
+MAVEN_USER_HOME="${MAVEN_USER_HOME:-${HOME}/.m2}"
+MAVEN_HOME="${MAVEN_USER_HOME}/wrapper/dists/${distributionUrlNameMain-}/$(hash_string "$distributionUrl")"
+
+exec_maven() {
+ unset MVNW_VERBOSE MVNW_USERNAME MVNW_PASSWORD MVNW_REPOURL || :
+ exec "$MAVEN_HOME/bin/$MVN_CMD" "$@" || die "cannot exec $MAVEN_HOME/bin/$MVN_CMD"
+}
+
+if [ -d "$MAVEN_HOME" ]; then
+ verbose "found existing MAVEN_HOME at $MAVEN_HOME"
+ exec_maven "$@"
+fi
+
+case "${distributionUrl-}" in
+*?-bin.zip | *?maven-mvnd-?*-?*.zip) ;;
+*) die "distributionUrl is not valid, must match *-bin.zip or maven-mvnd-*.zip, but found '${distributionUrl-}'" ;;
+esac
+
+# prepare tmp dir
+if TMP_DOWNLOAD_DIR="$(mktemp -d)" && [ -d "$TMP_DOWNLOAD_DIR" ]; then
+ clean() { rm -rf -- "$TMP_DOWNLOAD_DIR"; }
+ trap clean HUP INT TERM EXIT
+else
+ die "cannot create temp dir"
+fi
+
+mkdir -p -- "${MAVEN_HOME%/*}"
+
+# Download and Install Apache Maven
+verbose "Couldn't find MAVEN_HOME, downloading and installing it ..."
+verbose "Downloading from: $distributionUrl"
+verbose "Downloading to: $TMP_DOWNLOAD_DIR/$distributionUrlName"
+
+# select .zip or .tar.gz
+if ! command -v unzip >/dev/null; then
+ distributionUrl="${distributionUrl%.zip}.tar.gz"
+ distributionUrlName="${distributionUrl##*/}"
+fi
+
+# verbose opt
+__MVNW_QUIET_WGET=--quiet __MVNW_QUIET_CURL=--silent __MVNW_QUIET_UNZIP=-q __MVNW_QUIET_TAR=''
+[ "${MVNW_VERBOSE-}" != true ] || __MVNW_QUIET_WGET='' __MVNW_QUIET_CURL='' __MVNW_QUIET_UNZIP='' __MVNW_QUIET_TAR=v
+
+# normalize http auth
+case "${MVNW_PASSWORD:+has-password}" in
+'') MVNW_USERNAME='' MVNW_PASSWORD='' ;;
+has-password) [ -n "${MVNW_USERNAME-}" ] || MVNW_USERNAME='' MVNW_PASSWORD='' ;;
+esac
+
+if [ -z "${MVNW_USERNAME-}" ] && command -v wget >/dev/null; then
+ verbose "Found wget ... using wget"
+ wget ${__MVNW_QUIET_WGET:+"$__MVNW_QUIET_WGET"} "$distributionUrl" -O "$TMP_DOWNLOAD_DIR/$distributionUrlName" || die "wget: Failed to fetch $distributionUrl"
+elif [ -z "${MVNW_USERNAME-}" ] && command -v curl >/dev/null; then
+ verbose "Found curl ... using curl"
+ curl ${__MVNW_QUIET_CURL:+"$__MVNW_QUIET_CURL"} -f -L -o "$TMP_DOWNLOAD_DIR/$distributionUrlName" "$distributionUrl" || die "curl: Failed to fetch $distributionUrl"
+elif set_java_home; then
+ verbose "Falling back to use Java to download"
+ javaSource="$TMP_DOWNLOAD_DIR/Downloader.java"
+ targetZip="$TMP_DOWNLOAD_DIR/$distributionUrlName"
+ cat >"$javaSource" <<-END
+ public class Downloader extends java.net.Authenticator
+ {
+ protected java.net.PasswordAuthentication getPasswordAuthentication()
+ {
+ return new java.net.PasswordAuthentication( System.getenv( "MVNW_USERNAME" ), System.getenv( "MVNW_PASSWORD" ).toCharArray() );
+ }
+ public static void main( String[] args ) throws Exception
+ {
+ setDefault( new Downloader() );
+ java.nio.file.Files.copy( java.net.URI.create( args[0] ).toURL().openStream(), java.nio.file.Paths.get( args[1] ).toAbsolutePath().normalize() );
+ }
+ }
+ END
+ # For Cygwin/MinGW, switch paths to Windows format before running javac and java
+ verbose " - Compiling Downloader.java ..."
+ "$(native_path "$JAVACCMD")" "$(native_path "$javaSource")" || die "Failed to compile Downloader.java"
+ verbose " - Running Downloader.java ..."
+ "$(native_path "$JAVACMD")" -cp "$(native_path "$TMP_DOWNLOAD_DIR")" Downloader "$distributionUrl" "$(native_path "$targetZip")"
+fi
+
+# If specified, validate the SHA-256 sum of the Maven distribution zip file
+if [ -n "${distributionSha256Sum-}" ]; then
+ distributionSha256Result=false
+ if [ "$MVN_CMD" = mvnd.sh ]; then
+ echo "Checksum validation is not supported for maven-mvnd." >&2
+ echo "Please disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties." >&2
+ exit 1
+ elif command -v sha256sum >/dev/null; then
+ if echo "$distributionSha256Sum $TMP_DOWNLOAD_DIR/$distributionUrlName" | sha256sum -c - >/dev/null 2>&1; then
+ distributionSha256Result=true
+ fi
+ elif command -v shasum >/dev/null; then
+ if echo "$distributionSha256Sum $TMP_DOWNLOAD_DIR/$distributionUrlName" | shasum -a 256 -c >/dev/null 2>&1; then
+ distributionSha256Result=true
+ fi
+ else
+ echo "Checksum validation was requested but neither 'sha256sum' or 'shasum' are available." >&2
+ echo "Please install either command, or disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties." >&2
+ exit 1
+ fi
+ if [ $distributionSha256Result = false ]; then
+ echo "Error: Failed to validate Maven distribution SHA-256, your Maven distribution might be compromised." >&2
+ echo "If you updated your Maven version, you need to update the specified distributionSha256Sum property." >&2
+ exit 1
+ fi
+fi
+
+# unzip and move
+if command -v unzip >/dev/null; then
+ unzip ${__MVNW_QUIET_UNZIP:+"$__MVNW_QUIET_UNZIP"} "$TMP_DOWNLOAD_DIR/$distributionUrlName" -d "$TMP_DOWNLOAD_DIR" || die "failed to unzip"
+else
+ tar xzf${__MVNW_QUIET_TAR:+"$__MVNW_QUIET_TAR"} "$TMP_DOWNLOAD_DIR/$distributionUrlName" -C "$TMP_DOWNLOAD_DIR" || die "failed to untar"
+fi
+
+# Find the actual extracted directory name (handles snapshots where filename != directory name)
+actualDistributionDir=""
+
+# First try the expected directory name (for regular distributions)
+if [ -d "$TMP_DOWNLOAD_DIR/$distributionUrlNameMain" ]; then
+ if [ -f "$TMP_DOWNLOAD_DIR/$distributionUrlNameMain/bin/$MVN_CMD" ]; then
+ actualDistributionDir="$distributionUrlNameMain"
+ fi
+fi
+
+# If not found, search for any directory with the Maven executable (for snapshots)
+if [ -z "$actualDistributionDir" ]; then
+ # enable globbing to iterate over items
+ set +f
+ for dir in "$TMP_DOWNLOAD_DIR"/*; do
+ if [ -d "$dir" ]; then
+ if [ -f "$dir/bin/$MVN_CMD" ]; then
+ actualDistributionDir="$(basename "$dir")"
+ break
+ fi
+ fi
+ done
+ set -f
+fi
+
+if [ -z "$actualDistributionDir" ]; then
+ verbose "Contents of $TMP_DOWNLOAD_DIR:"
+ verbose "$(ls -la "$TMP_DOWNLOAD_DIR")"
+ die "Could not find Maven distribution directory in extracted archive"
+fi
+
+verbose "Found extracted Maven distribution directory: $actualDistributionDir"
+printf %s\\n "$distributionUrl" >"$TMP_DOWNLOAD_DIR/$actualDistributionDir/mvnw.url"
+mv -- "$TMP_DOWNLOAD_DIR/$actualDistributionDir" "$MAVEN_HOME" || [ -d "$MAVEN_HOME" ] || die "fail to move MAVEN_HOME"
+
+clean || :
+exec_maven "$@"
diff --git a/tools/oas-mcp-tools-weaver/mcpserver/mvnw.cmd b/tools/oas-mcp-tools-weaver/mcpserver/mvnw.cmd
new file mode 100755
index 00000000000..b80a7af7726
--- /dev/null
+++ b/tools/oas-mcp-tools-weaver/mcpserver/mvnw.cmd
@@ -0,0 +1,202 @@
+# Copyright 2025 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+<# : batch portion
+@REM ----------------------------------------------------------------------------
+@REM Licensed to the Apache Software Foundation (ASF) under one
+@REM or more contributor license agreements. See the NOTICE file
+@REM distributed with this work for additional information
+@REM regarding copyright ownership. The ASF licenses this file
+@REM to you under the Apache License, Version 2.0 (the
+@REM "License"); you may not use this file except in compliance
+@REM with the License. You may obtain a copy of the License at
+@REM
+@REM http://www.apache.org/licenses/LICENSE-2.0
+@REM
+@REM Unless required by applicable law or agreed to in writing,
+@REM software distributed under the License is distributed on an
+@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+@REM KIND, either express or implied. See the License for the
+@REM specific language governing permissions and limitations
+@REM under the License.
+@REM ----------------------------------------------------------------------------
+
+@REM ----------------------------------------------------------------------------
+@REM Apache Maven Wrapper startup batch script, version 3.3.3
+@REM
+@REM Optional ENV vars
+@REM MVNW_REPOURL - repo url base for downloading maven distribution
+@REM MVNW_USERNAME/MVNW_PASSWORD - user and password for downloading maven
+@REM MVNW_VERBOSE - true: enable verbose log; others: silence the output
+@REM ----------------------------------------------------------------------------
+
+@IF "%__MVNW_ARG0_NAME__%"=="" (SET __MVNW_ARG0_NAME__=%~nx0)
+@SET __MVNW_CMD__=
+@SET __MVNW_ERROR__=
+@SET __MVNW_PSMODULEP_SAVE=%PSModulePath%
+@SET PSModulePath=
+@FOR /F "usebackq tokens=1* delims==" %%A IN (`powershell -noprofile "& {$scriptDir='%~dp0'; $script='%__MVNW_ARG0_NAME__%'; icm -ScriptBlock ([Scriptblock]::Create((Get-Content -Raw '%~f0'))) -NoNewScope}"`) DO @(
+ IF "%%A"=="MVN_CMD" (set __MVNW_CMD__=%%B) ELSE IF "%%B"=="" (echo %%A) ELSE (echo %%A=%%B)
+)
+@SET PSModulePath=%__MVNW_PSMODULEP_SAVE%
+@SET __MVNW_PSMODULEP_SAVE=
+@SET __MVNW_ARG0_NAME__=
+@SET MVNW_USERNAME=
+@SET MVNW_PASSWORD=
+@IF NOT "%__MVNW_CMD__%"=="" ("%__MVNW_CMD__%" %*)
+@echo Cannot start maven from wrapper >&2 && exit /b 1
+@GOTO :EOF
+: end batch / begin powershell #>
+
+$ErrorActionPreference = "Stop"
+if ($env:MVNW_VERBOSE -eq "true") {
+ $VerbosePreference = "Continue"
+}
+
+# calculate distributionUrl, requires .mvn/wrapper/maven-wrapper.properties
+$distributionUrl = (Get-Content -Raw "$scriptDir/.mvn/wrapper/maven-wrapper.properties" | ConvertFrom-StringData).distributionUrl
+if (!$distributionUrl) {
+ Write-Error "cannot read distributionUrl property in $scriptDir/.mvn/wrapper/maven-wrapper.properties"
+}
+
+switch -wildcard -casesensitive ( $($distributionUrl -replace '^.*/','') ) {
+ "maven-mvnd-*" {
+ $USE_MVND = $true
+ $distributionUrl = $distributionUrl -replace '-bin\.[^.]*$',"-windows-amd64.zip"
+ $MVN_CMD = "mvnd.cmd"
+ break
+ }
+ default {
+ $USE_MVND = $false
+ $MVN_CMD = $script -replace '^mvnw','mvn'
+ break
+ }
+}
+
+# apply MVNW_REPOURL and calculate MAVEN_HOME
+# maven home pattern: ~/.m2/wrapper/dists/{apache-maven-,maven-mvnd--}/
+if ($env:MVNW_REPOURL) {
+ $MVNW_REPO_PATTERN = if ($USE_MVND -eq $False) { "/org/apache/maven/" } else { "/maven/mvnd/" }
+ $distributionUrl = "$env:MVNW_REPOURL$MVNW_REPO_PATTERN$($distributionUrl -replace "^.*$MVNW_REPO_PATTERN",'')"
+}
+$distributionUrlName = $distributionUrl -replace '^.*/',''
+$distributionUrlNameMain = $distributionUrlName -replace '\.[^.]*$','' -replace '-bin$',''
+
+$MAVEN_M2_PATH = "$HOME/.m2"
+if ($env:MAVEN_USER_HOME) {
+ $MAVEN_M2_PATH = "$env:MAVEN_USER_HOME"
+}
+
+if (-not (Test-Path -Path $MAVEN_M2_PATH)) {
+ New-Item -Path $MAVEN_M2_PATH -ItemType Directory | Out-Null
+}
+
+$MAVEN_WRAPPER_DISTS = $null
+if ((Get-Item $MAVEN_M2_PATH).Target[0] -eq $null) {
+ $MAVEN_WRAPPER_DISTS = "$MAVEN_M2_PATH/wrapper/dists"
+} else {
+ $MAVEN_WRAPPER_DISTS = (Get-Item $MAVEN_M2_PATH).Target[0] + "/wrapper/dists"
+}
+
+$MAVEN_HOME_PARENT = "$MAVEN_WRAPPER_DISTS/$distributionUrlNameMain"
+$MAVEN_HOME_NAME = ([System.Security.Cryptography.SHA256]::Create().ComputeHash([byte[]][char[]]$distributionUrl) | ForEach-Object {$_.ToString("x2")}) -join ''
+$MAVEN_HOME = "$MAVEN_HOME_PARENT/$MAVEN_HOME_NAME"
+
+if (Test-Path -Path "$MAVEN_HOME" -PathType Container) {
+ Write-Verbose "found existing MAVEN_HOME at $MAVEN_HOME"
+ Write-Output "MVN_CMD=$MAVEN_HOME/bin/$MVN_CMD"
+ exit $?
+}
+
+if (! $distributionUrlNameMain -or ($distributionUrlName -eq $distributionUrlNameMain)) {
+ Write-Error "distributionUrl is not valid, must end with *-bin.zip, but found $distributionUrl"
+}
+
+# prepare tmp dir
+$TMP_DOWNLOAD_DIR_HOLDER = New-TemporaryFile
+$TMP_DOWNLOAD_DIR = New-Item -Itemtype Directory -Path "$TMP_DOWNLOAD_DIR_HOLDER.dir"
+$TMP_DOWNLOAD_DIR_HOLDER.Delete() | Out-Null
+trap {
+ if ($TMP_DOWNLOAD_DIR.Exists) {
+ try { Remove-Item $TMP_DOWNLOAD_DIR -Recurse -Force | Out-Null }
+ catch { Write-Warning "Cannot remove $TMP_DOWNLOAD_DIR" }
+ }
+}
+
+New-Item -Itemtype Directory -Path "$MAVEN_HOME_PARENT" -Force | Out-Null
+
+# Download and Install Apache Maven
+Write-Verbose "Couldn't find MAVEN_HOME, downloading and installing it ..."
+Write-Verbose "Downloading from: $distributionUrl"
+Write-Verbose "Downloading to: $TMP_DOWNLOAD_DIR/$distributionUrlName"
+
+$webclient = New-Object System.Net.WebClient
+if ($env:MVNW_USERNAME -and $env:MVNW_PASSWORD) {
+ $webclient.Credentials = New-Object System.Net.NetworkCredential($env:MVNW_USERNAME, $env:MVNW_PASSWORD)
+}
+[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
+$webclient.DownloadFile($distributionUrl, "$TMP_DOWNLOAD_DIR/$distributionUrlName") | Out-Null
+
+# If specified, validate the SHA-256 sum of the Maven distribution zip file
+$distributionSha256Sum = (Get-Content -Raw "$scriptDir/.mvn/wrapper/maven-wrapper.properties" | ConvertFrom-StringData).distributionSha256Sum
+if ($distributionSha256Sum) {
+ if ($USE_MVND) {
+ Write-Error "Checksum validation is not supported for maven-mvnd. `nPlease disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties."
+ }
+ Import-Module $PSHOME\Modules\Microsoft.PowerShell.Utility -Function Get-FileHash
+ if ((Get-FileHash "$TMP_DOWNLOAD_DIR/$distributionUrlName" -Algorithm SHA256).Hash.ToLower() -ne $distributionSha256Sum) {
+ Write-Error "Error: Failed to validate Maven distribution SHA-256, your Maven distribution might be compromised. If you updated your Maven version, you need to update the specified distributionSha256Sum property."
+ }
+}
+
+# unzip and move
+Expand-Archive "$TMP_DOWNLOAD_DIR/$distributionUrlName" -DestinationPath "$TMP_DOWNLOAD_DIR" | Out-Null
+
+# Find the actual extracted directory name (handles snapshots where filename != directory name)
+$actualDistributionDir = ""
+
+# First try the expected directory name (for regular distributions)
+$expectedPath = Join-Path "$TMP_DOWNLOAD_DIR" "$distributionUrlNameMain"
+$expectedMvnPath = Join-Path "$expectedPath" "bin/$MVN_CMD"
+if ((Test-Path -Path $expectedPath -PathType Container) -and (Test-Path -Path $expectedMvnPath -PathType Leaf)) {
+ $actualDistributionDir = $distributionUrlNameMain
+}
+
+# If not found, search for any directory with the Maven executable (for snapshots)
+if (!$actualDistributionDir) {
+ Get-ChildItem -Path "$TMP_DOWNLOAD_DIR" -Directory | ForEach-Object {
+ $testPath = Join-Path $_.FullName "bin/$MVN_CMD"
+ if (Test-Path -Path $testPath -PathType Leaf) {
+ $actualDistributionDir = $_.Name
+ }
+ }
+}
+
+if (!$actualDistributionDir) {
+ Write-Error "Could not find Maven distribution directory in extracted archive"
+}
+
+Write-Verbose "Found extracted Maven distribution directory: $actualDistributionDir"
+Rename-Item -Path "$TMP_DOWNLOAD_DIR/$actualDistributionDir" -NewName $MAVEN_HOME_NAME | Out-Null
+try {
+ Move-Item -Path "$TMP_DOWNLOAD_DIR/$MAVEN_HOME_NAME" -Destination $MAVEN_HOME_PARENT | Out-Null
+} catch {
+ if (! (Test-Path -Path "$MAVEN_HOME" -PathType Container)) {
+ Write-Error "fail to move MAVEN_HOME"
+ }
+} finally {
+ try { Remove-Item $TMP_DOWNLOAD_DIR -Recurse -Force | Out-Null }
+ catch { Write-Warning "Cannot remove $TMP_DOWNLOAD_DIR" }
+}
+
+Write-Output "MVN_CMD=$MAVEN_HOME/bin/$MVN_CMD"
diff --git a/tools/oas-mcp-tools-weaver/mcpserver/pom.xml b/tools/oas-mcp-tools-weaver/mcpserver/pom.xml
new file mode 100644
index 00000000000..d67e9ae8d26
--- /dev/null
+++ b/tools/oas-mcp-tools-weaver/mcpserver/pom.xml
@@ -0,0 +1,110 @@
+
+
+ 4.0.0
+
+ org.springframework.boot
+ spring-boot-starter-parent
+ 3.5.5
+
+
+ poc.google
+ mcpserver
+ 0.0.1-SNAPSHOT
+ mcpserver
+ Demo project for Spring AI MCP Server
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ 17
+ 1.0.0
+
+
+
+
+ org.springframework.ai
+ spring-ai-bom
+ ${spring-ai.version}
+ pom
+ import
+
+
+
+
+
+
+ org.springframework.boot
+ spring-boot-starter-actuator
+
+
+ org.springframework.boot
+ spring-boot-starter
+
+
+ org.springframework.ai
+ spring-ai-starter-mcp-server-webmvc
+
+
+ org.projectlombok
+ lombok
+ true
+
+
+ io.swagger.parser.v3
+ swagger-parser
+ 2.1.30
+
+
+ org.json
+ json
+ 20250517
+
+
+
+ org.springframework.boot
+ spring-boot-starter-test
+ test
+
+
+
+
+
+
+ org.apache.maven.plugins
+ maven-compiler-plugin
+
+
+
+ org.projectlombok
+ lombok
+
+
+
+
+
+ org.springframework.boot
+ spring-boot-maven-plugin
+
+
+
+ org.projectlombok
+ lombok
+
+
+
+
+
+
+
+
diff --git a/tools/oas-mcp-tools-weaver/mcpserver/src/main/java/poc/google/mcpserver/McpserverApplication.java b/tools/oas-mcp-tools-weaver/mcpserver/src/main/java/poc/google/mcpserver/McpserverApplication.java
new file mode 100644
index 00000000000..86098f2d7d3
--- /dev/null
+++ b/tools/oas-mcp-tools-weaver/mcpserver/src/main/java/poc/google/mcpserver/McpserverApplication.java
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2025 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package poc.google.mcpserver;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class McpserverApplication {
+ public static void main(String[] args) {
+ SpringApplication.run(McpserverApplication.class, args);
+
+ }
+}
diff --git a/tools/oas-mcp-tools-weaver/mcpserver/src/main/java/poc/google/mcpserver/configuration/OASSchemaProcessorConfiguration.java b/tools/oas-mcp-tools-weaver/mcpserver/src/main/java/poc/google/mcpserver/configuration/OASSchemaProcessorConfiguration.java
new file mode 100644
index 00000000000..4ad2aa6d810
--- /dev/null
+++ b/tools/oas-mcp-tools-weaver/mcpserver/src/main/java/poc/google/mcpserver/configuration/OASSchemaProcessorConfiguration.java
@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2025 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package poc.google.mcpserver.configuration;
+
+import java.util.List;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+import poc.google.mcpserver.processor.OASSchemaHandler;
+import poc.google.mcpserver.processor.keywords.AllOfHandler;
+import poc.google.mcpserver.processor.keywords.AnyOfHandler;
+import poc.google.mcpserver.processor.keywords.IKeywordHandler;
+import poc.google.mcpserver.processor.keywords.OneOfHandler;
+
+/**
+ * Configuration class for setting up the OpenAPI Schema processor and its keyword handlers.
+ * This is used to simplify complex schema structures (like oneOf, allOf) into a format
+ * that is more easily understood by AI models.
+ */
+@Configuration
+public class OASSchemaProcessorConfiguration {
+
+ /**
+ * Provides a handler for the {@code oneOf} keyword in an OpenAPI schema.
+ *
+ * @return An {@link IKeywordHandler} for the {@code oneOf} keyword.
+ */
+ @Bean
+ public IKeywordHandler oneOfHandler() {
+ return new OneOfHandler();
+ }
+
+ /**
+ * Provides a handler for the {@code anyOf} keyword in an OpenAPI schema.
+ *
+ * @return An {@link IKeywordHandler} for the {@code anyOf} keyword.
+ */
+ @Bean
+ public IKeywordHandler anyOfHandler() {
+ return new AnyOfHandler();
+ }
+
+ /**
+ * Provides a handler for the {@code allOf} keyword in an OpenAPI schema.
+ *
+ * @return An {@link IKeywordHandler} for the {@code allOf} keyword.
+ */
+ @Bean
+ public IKeywordHandler allOfHandler() {
+ return new AllOfHandler();
+ }
+
+ /**
+ * Creates the main {@link OASSchemaHandler} bean.
+ * This handler iterates through a list of keyword-specific handlers to process
+ * and simplify an OpenAPI schema.
+ *
+ * @param keywordHandlers A list of all configured {@link IKeywordHandler} beans.
+ * @return The main {@link OASSchemaHandler} for processing schemas.
+ */
+ @Bean
+ public OASSchemaHandler schemaProcessor(List keywordHandlers) {
+ return new OASSchemaHandler(keywordHandlers);
+ }
+}
\ No newline at end of file
diff --git a/tools/oas-mcp-tools-weaver/mcpserver/src/main/java/poc/google/mcpserver/configuration/PromptsConfiguration.java b/tools/oas-mcp-tools-weaver/mcpserver/src/main/java/poc/google/mcpserver/configuration/PromptsConfiguration.java
new file mode 100644
index 00000000000..93f80c70a06
--- /dev/null
+++ b/tools/oas-mcp-tools-weaver/mcpserver/src/main/java/poc/google/mcpserver/configuration/PromptsConfiguration.java
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2025 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package poc.google.mcpserver.configuration;
+
+import org.springframework.context.annotation.Configuration;
+
+/**
+ * Configuration class for creating MCP (Model Context Protocol) prompt specifications
+ * dynamically from OpenAPI specification files.
+ */
+@Configuration
+public class PromptsConfiguration {
+
+ /**
+ * Creates a list of {@link McpServerFeatures.SyncPromptSpecification} beans for the Pet Store API.
+ * These prompts are generated from the examples in the petStore.yaml OpenAPI specification.
+ *
+ * @return A list of synchronous prompt specifications for the pet store.
+ */
+ // @Bean
+ // public List petStorePrompts() {
+ // return new DynamicPromptTemplateExamplesGenerator().generatPromptTemplatesFromOAS("/openapi/petStore.yaml");
+ // }
+
+}
\ No newline at end of file
diff --git a/tools/oas-mcp-tools-weaver/mcpserver/src/main/java/poc/google/mcpserver/configuration/RestAPIConfiguration.java b/tools/oas-mcp-tools-weaver/mcpserver/src/main/java/poc/google/mcpserver/configuration/RestAPIConfiguration.java
new file mode 100644
index 00000000000..fe77882728e
--- /dev/null
+++ b/tools/oas-mcp-tools-weaver/mcpserver/src/main/java/poc/google/mcpserver/configuration/RestAPIConfiguration.java
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2025 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package poc.google.mcpserver.configuration;
+
+import org.springframework.boot.web.client.RestTemplateBuilder;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.MediaType;
+import org.springframework.web.client.RestTemplate;
+
+/**
+ * Configuration for REST API communication.
+ * This class sets up the RestTemplate bean used for making outbound HTTP requests.
+ */
+@Configuration
+public class RestAPIConfiguration {
+
+ /**
+ * Creates and configures a {@link RestTemplate} bean.
+ * The RestTemplate is configured with default headers to accept and send JSON.
+ * @param builder The {@link RestTemplateBuilder} to construct the RestTemplate.
+ * @return A configured {@link RestTemplate} instance.
+ */
+ @Bean
+ public RestTemplate restTemplate(RestTemplateBuilder builder) {
+ return builder
+ .defaultHeader(HttpHeaders.ACCEPT, MediaType.APPLICATION_JSON_VALUE)
+ .defaultHeader(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_JSON_VALUE)
+ .build();
+ }
+}
diff --git a/tools/oas-mcp-tools-weaver/mcpserver/src/main/java/poc/google/mcpserver/configuration/ToolsConfiguration.java b/tools/oas-mcp-tools-weaver/mcpserver/src/main/java/poc/google/mcpserver/configuration/ToolsConfiguration.java
new file mode 100644
index 00000000000..8a0d0fbceda
--- /dev/null
+++ b/tools/oas-mcp-tools-weaver/mcpserver/src/main/java/poc/google/mcpserver/configuration/ToolsConfiguration.java
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2025 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package poc.google.mcpserver.configuration;
+
+import org.springframework.ai.tool.ToolCallbackProvider;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.client.RestTemplate;
+
+import poc.google.mcpserver.processor.OASSchemaHandler;
+import poc.google.mcpserver.tool.DynamicOpenApiToolCallbackProvider;
+
+/**
+ * Configuration class for creating Spring AI {@link ToolCallbackProvider} beans
+ * from OpenAPI specifications. This allows for dynamic generation of tools
+ * that can be used by an AI model.
+ */
+@Configuration
+public class ToolsConfiguration {
+
+ /**
+ * The environment for the API (e.g., 'petstore3.swagger.io').
+ */
+ @Value("${api.envUrl}")
+ private String apiUrlEnv;
+
+ /**
+ * Creates a {@link ToolCallbackProvider} for the Pet Store API.
+ * The tools are dynamically generated from the {@code /openapi/petStore.yaml} specification.
+ *
+ * @param schemaProcessor The processor to handle complex OpenAPI schema constructs.
+ * @param restTemplate The RestTemplate to use for making API calls.
+ * @return A {@link ToolCallbackProvider} containing tools for the Pet Store API.
+ */
+ @Bean
+ ToolCallbackProvider petStoreTools(OASSchemaHandler schemaProcessor, RestTemplate restTemplate) {
+ return new DynamicOpenApiToolCallbackProvider("/openapi/petStore.yaml", schemaProcessor, restTemplate, apiUrlEnv);
+ }
+
+}
\ No newline at end of file
diff --git a/tools/oas-mcp-tools-weaver/mcpserver/src/main/java/poc/google/mcpserver/processor/OASSchemaHandler.java b/tools/oas-mcp-tools-weaver/mcpserver/src/main/java/poc/google/mcpserver/processor/OASSchemaHandler.java
new file mode 100644
index 00000000000..9f4f0ddbc59
--- /dev/null
+++ b/tools/oas-mcp-tools-weaver/mcpserver/src/main/java/poc/google/mcpserver/processor/OASSchemaHandler.java
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2025 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package poc.google.mcpserver.processor;
+
+import java.util.List;
+
+import io.swagger.v3.oas.models.media.Schema;
+import poc.google.mcpserver.processor.keywords.IKeywordHandler;
+
+/**
+ * A handler that processes an OpenAPI {@link Schema} object by applying a series of
+ * keyword-specific handlers. It recursively traverses the schema structure (objects and arrays)
+ * to ensure all parts of the schema are processed.
+ */
+public class OASSchemaHandler {
+
+ private final List keywordHandlers;
+
+ /**
+ * Constructs a new SchemaHandler with a list of keyword handlers.
+ *
+ * @param keywordHandlers The list of {@link IKeywordHandler} instances to apply to the schemas.
+ */
+ public OASSchemaHandler(List keywordHandlers) {
+ this.keywordHandlers = keywordHandlers;
+ }
+
+ /**
+ * Processes the given schema by applying all configured keyword handlers and then
+ * recursively processing any nested schemas within its properties or items.
+ *
+ * @param schema The {@link Schema} object to process. Can be null.
+ */
+ public void process(Schema schema) {
+ if (schema == null) {
+ return;
+ }
+
+ keywordHandlers.forEach(handler -> handler.process(schema));
+
+ if ("object".equals(schema.getType()) && schema.getProperties() != null) {
+ schema.getProperties().values().forEach(this::process);
+ } else if ("array".equals(schema.getType()) && schema.getItems() != null) {
+ process(schema.getItems());
+ }
+ }
+}
\ No newline at end of file
diff --git a/tools/oas-mcp-tools-weaver/mcpserver/src/main/java/poc/google/mcpserver/processor/keywords/AllOfHandler.java b/tools/oas-mcp-tools-weaver/mcpserver/src/main/java/poc/google/mcpserver/processor/keywords/AllOfHandler.java
new file mode 100644
index 00000000000..55afbe2b63c
--- /dev/null
+++ b/tools/oas-mcp-tools-weaver/mcpserver/src/main/java/poc/google/mcpserver/processor/keywords/AllOfHandler.java
@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2025 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package poc.google.mcpserver.processor.keywords;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import io.swagger.v3.oas.models.media.Schema;
+
+/**
+ * A handler for the {@code allOf} keyword in an OpenAPI schema.
+ * This handler merges the properties of all sub-schemas listed in the {@code allOf}
+ * array into a single superset of properties in the parent schema. This flattens
+ * the structure, making it simpler for consumers that may not fully support composition keywords.
+ */
+public class AllOfHandler implements IKeywordHandler {
+
+ /**
+ * Processes a schema to resolve the {@code allOf} keyword.
+ * @param schema The schema to process.
+ */
+ @Override
+ public void process(Schema schema) {
+ List subSchemaList = schema.getAllOf();
+ if(subSchemaList != null && subSchemaList.size() > 0) {
+ Map supersetProperties = new HashMap<>();
+
+ subSchemaList.stream()
+ .filter(subSchema -> subSchema.getProperties() != null)
+ .map(Schema::getProperties)
+ .forEach(supersetProperties::putAll);
+
+ schema.setProperties(supersetProperties);
+ schema.setAllOf(null);
+ }
+ }
+
+}
\ No newline at end of file
diff --git a/tools/oas-mcp-tools-weaver/mcpserver/src/main/java/poc/google/mcpserver/processor/keywords/AnyOfHandler.java b/tools/oas-mcp-tools-weaver/mcpserver/src/main/java/poc/google/mcpserver/processor/keywords/AnyOfHandler.java
new file mode 100644
index 00000000000..3bde0f88a42
--- /dev/null
+++ b/tools/oas-mcp-tools-weaver/mcpserver/src/main/java/poc/google/mcpserver/processor/keywords/AnyOfHandler.java
@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2025 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package poc.google.mcpserver.processor.keywords;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import io.swagger.v3.oas.models.media.Schema;
+
+/**
+ * A handler for the {@code anyOf} keyword in an OpenAPI schema.
+ * This handler merges the properties of all sub-schemas listed in the {@code anyOf}
+ * array into a single superset of properties in the parent schema. This flattens
+ * the structure, making it simpler for consumers that may not fully support composition keywords.
+ */
+public class AnyOfHandler implements IKeywordHandler {
+
+ /**
+ * Processes a schema to resolve the {@code anyOf} keyword.
+ * @param schema The schema to process.
+ */
+ @Override
+ public void process(Schema schema) {
+ List subSchemaList = schema.getAnyOf();
+ if(subSchemaList != null && subSchemaList.size() > 0) {
+ Map supersetProperties = new HashMap<>();
+
+ subSchemaList.stream()
+ .filter(subSchema -> subSchema.getProperties() != null)
+ .map(Schema::getProperties)
+ .forEach(supersetProperties::putAll);
+
+ schema.setProperties(supersetProperties);
+ schema.setAnyOf(null);
+ }
+ }
+
+}
\ No newline at end of file
diff --git a/tools/oas-mcp-tools-weaver/mcpserver/src/main/java/poc/google/mcpserver/processor/keywords/IKeywordHandler.java b/tools/oas-mcp-tools-weaver/mcpserver/src/main/java/poc/google/mcpserver/processor/keywords/IKeywordHandler.java
new file mode 100644
index 00000000000..6fb8ae8c87e
--- /dev/null
+++ b/tools/oas-mcp-tools-weaver/mcpserver/src/main/java/poc/google/mcpserver/processor/keywords/IKeywordHandler.java
@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2025 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package poc.google.mcpserver.processor.keywords;
+
+import io.swagger.v3.oas.models.media.Schema;
+
+public interface IKeywordHandler {
+ void process(Schema schema);
+}
\ No newline at end of file
diff --git a/tools/oas-mcp-tools-weaver/mcpserver/src/main/java/poc/google/mcpserver/processor/keywords/OneOfHandler.java b/tools/oas-mcp-tools-weaver/mcpserver/src/main/java/poc/google/mcpserver/processor/keywords/OneOfHandler.java
new file mode 100644
index 00000000000..98e402a35ca
--- /dev/null
+++ b/tools/oas-mcp-tools-weaver/mcpserver/src/main/java/poc/google/mcpserver/processor/keywords/OneOfHandler.java
@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2025 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package poc.google.mcpserver.processor.keywords;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import io.swagger.v3.oas.models.media.Schema;
+
+/**
+ * A handler for the {@code oneOf} keyword in an OpenAPI schema.
+ * This handler merges the properties of all sub-schemas listed in the {@code oneOf}
+ * array into a single superset of properties in the parent schema. This flattens
+ * the structure, making it simpler for consumers that may not fully support composition keywords.
+ */
+public class OneOfHandler implements IKeywordHandler {
+
+ /**
+ * Processes a schema to resolve the {@code oneOf} keyword.
+ * @param schema The schema to process.
+ */
+ @Override
+ public void process(Schema schema) {
+ List subSchemaList = schema.getOneOf();
+ if(subSchemaList != null && subSchemaList.size() > 0) {
+ Map supersetProperties = new HashMap<>();
+
+ subSchemaList.stream()
+ .filter(subSchema -> subSchema.getProperties() != null)
+ .map(Schema::getProperties)
+ .forEach(supersetProperties::putAll);
+
+ schema.setProperties(supersetProperties);
+ schema.setOneOf(null);
+ }
+ }
+
+}
\ No newline at end of file
diff --git a/tools/oas-mcp-tools-weaver/mcpserver/src/main/java/poc/google/mcpserver/prompt/DynamicPromptTemplateExamplesGenerator.java b/tools/oas-mcp-tools-weaver/mcpserver/src/main/java/poc/google/mcpserver/prompt/DynamicPromptTemplateExamplesGenerator.java
new file mode 100644
index 00000000000..fa871a89bfb
--- /dev/null
+++ b/tools/oas-mcp-tools-weaver/mcpserver/src/main/java/poc/google/mcpserver/prompt/DynamicPromptTemplateExamplesGenerator.java
@@ -0,0 +1,163 @@
+/*
+ * Copyright (C) 2025 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package poc.google.mcpserver.prompt;
+
+import java.io.InputStream;
+import java.nio.charset.StandardCharsets;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.MapperFeature;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.json.JsonMapper;
+
+import io.modelcontextprotocol.server.McpServerFeatures;
+import io.modelcontextprotocol.server.McpServerFeatures.SyncPromptSpecification;
+import io.modelcontextprotocol.spec.McpSchema;
+import io.modelcontextprotocol.spec.McpSchema.GetPromptResult;
+import io.modelcontextprotocol.spec.McpSchema.PromptMessage;
+import io.modelcontextprotocol.spec.McpSchema.Role;
+import io.modelcontextprotocol.spec.McpSchema.TextContent;
+import io.swagger.v3.oas.models.OpenAPI;
+import io.swagger.v3.oas.models.Operation;
+import io.swagger.v3.oas.models.examples.Example;
+import io.swagger.v3.parser.OpenAPIV3Parser;
+import io.swagger.v3.parser.core.models.ParseOptions;
+
+/**
+ * Dynamically generates MCP (Model Context Protocol) {@link SyncPromptSpecification} instances
+ * from the examples found in an OpenAPI specification file.
+ *
+ * This class reads an OpenAPI file, extracts the request body examples for each operation,
+ * and creates a corresponding prompt specification that can serve these examples to an AI model.
+ */
+public class DynamicPromptTemplateExamplesGenerator {
+
+ private static final Logger log = LoggerFactory.getLogger(DynamicPromptTemplateExamplesGenerator.class);
+
+ private final ObjectMapper objectMapper = JsonMapper.builder().configure(MapperFeature.REQUIRE_HANDLERS_FOR_JAVA8_TIMES, false).build();
+ private final List syncPromptSpecificationList = new ArrayList<>();
+
+ /**
+ * Generates a list of {@link McpServerFeatures.SyncPromptSpecification} from a given OpenAPI specification file.
+ * It parses the spec, iterates through all operations, and constructs a prompt for each operation that has examples.
+ *
+ * @param openApiSpecPath The classpath resource path to the OpenAPI specification YAML file.
+ * @return A list of {@link McpServerFeatures.SyncPromptSpecification} containing the extracted examples.
+ * @throws RuntimeException if the OpenAPI spec file cannot be found, read, or parsed.
+ */
+ public List generatPromptTemplatesFromOAS(String openApiSpecPath){
+
+ objectMapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
+
+ try (InputStream inputStream = this.getClass().getResourceAsStream(openApiSpecPath)) {
+ if (inputStream == null) {
+ throw new IllegalArgumentException("OpenAPI spec not found on classpath: " + openApiSpecPath);
+ }
+
+ String spec = new String(inputStream.readAllBytes(), StandardCharsets.UTF_8);
+ ParseOptions options = new ParseOptions();
+ options.setResolve(true);
+ options.setResolveFully(true);
+ OpenAPI openAPI = new OpenAPIV3Parser().readContents(spec, null, options).getOpenAPI();
+
+ if (openAPI == null) {
+ throw new RuntimeException("Failed to read OpenAPI spec from: " + openApiSpecPath);
+ }
+
+ openAPI.getPaths().forEach((path, pathItem) -> {
+ pathItem.readOperationsMap().forEach((httpMethod, operation) -> constructPrompts(operation, openAPI));
+ });
+
+ } catch (Exception e) {
+ throw new RuntimeException("Failed to load and parse OpenAPI spec", e);
+ }
+
+ return syncPromptSpecificationList;
+ }
+
+ /**
+ * Extracts and serializes the request body examples for a given OpenAPI operation.
+ * It handles resolving {@code $ref} pointers to examples defined in the components section.
+ *
+ * @param operation The OpenAPI {@link Operation} from which to extract examples.
+ * @param openAPI The fully resolved {@link OpenAPI} model, used for resolving references.
+ * @return A JSON string representation of the examples, or a fallback message if no examples are found or an error occurs.
+ */
+ private String extractExamplesFromReqBody(Operation operation, OpenAPI openAPI) {
+
+ if (operation.getRequestBody().getContent().get("application/json").getExamples() == null) {
+ return "Refer tool description and inputSchema to build JSON Request Body";
+ }
+
+ Map examplesMap = operation.getRequestBody().getContent().get("application/json").getExamples();
+
+ try {
+ // Manually resolve $ref in examples
+ for (Map.Entry entry : examplesMap.entrySet()) {
+ Example example = entry.getValue();
+ if (example.get$ref() != null) {
+ String ref = example.get$ref();
+ if (ref.startsWith("#/components/examples/")) {
+ String exampleName = ref.substring("#/components/examples/".length());
+ if (openAPI.getComponents() != null && openAPI.getComponents().getExamples() != null) {
+ Example resolvedExample = openAPI.getComponents().getExamples().get(exampleName);
+ if (resolvedExample != null) {
+ entry.setValue(resolvedExample);
+ }
+ }
+ }
+ }
+ }
+ String examples = objectMapper.writeValueAsString(examplesMap);
+ log.debug("Extracted examples for operation {}: {}", operation.getOperationId(), examples);
+ return examples;
+ } catch (JsonProcessingException e) {
+ log.warn("JsonProcessingException while extracting examples for operation {}", operation.getOperationId(), e);
+ return "Refer tool description and inputSchema to build JSON Request Body";
+ }
+ }
+
+ /**
+ * Constructs a {@link McpServerFeatures.SyncPromptSpecification} for a given operation.
+ * The prompt contains the extracted request body examples.
+ *
+ * @param operation The OpenAPI {@link Operation} to construct the prompt for.
+ * @param openAPI The fully resolved {@link OpenAPI} model.
+ */
+ private void constructPrompts(Operation operation, OpenAPI openAPI) {
+
+ String operationId = operation.getOperationId();
+ if (operationId == null || operationId.isBlank()) return;
+
+ String examples = extractExamplesFromReqBody(operation, openAPI);
+
+ var prompt = new McpSchema.Prompt(operation.getOperationId() + "_examples", "Examples of Request Body for " + operation.getOperationId() + " tool", null);
+
+ syncPromptSpecificationList.add(new McpServerFeatures.SyncPromptSpecification(prompt, (exchange, getPromptRequest) -> {
+ var userMessage = new PromptMessage(Role.USER, new TextContent(
+ examples
+ ));
+ return new GetPromptResult("Tool Request Body Examples", List.of(userMessage));
+ }));
+ }
+}
diff --git a/tools/oas-mcp-tools-weaver/mcpserver/src/main/java/poc/google/mcpserver/tool/DynamicOpenApiToolCallbackProvider.java b/tools/oas-mcp-tools-weaver/mcpserver/src/main/java/poc/google/mcpserver/tool/DynamicOpenApiToolCallbackProvider.java
new file mode 100644
index 00000000000..f4358c3e026
--- /dev/null
+++ b/tools/oas-mcp-tools-weaver/mcpserver/src/main/java/poc/google/mcpserver/tool/DynamicOpenApiToolCallbackProvider.java
@@ -0,0 +1,438 @@
+/*
+ * Copyright (C) 2025 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package poc.google.mcpserver.tool;
+
+import java.io.InputStream;
+import java.nio.charset.StandardCharsets;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.function.BiFunction;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.ai.chat.model.ToolContext;
+import org.springframework.ai.tool.ToolCallback;
+import org.springframework.ai.tool.ToolCallbackProvider;
+import org.springframework.ai.tool.definition.ToolDefinition;
+import org.springframework.ai.tool.function.FunctionToolCallback;
+import org.springframework.core.ResolvableType;
+import org.springframework.http.HttpEntity;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpMethod;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.client.RestTemplate;
+
+import com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.MapperFeature;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.json.JsonMapper;
+
+import io.swagger.v3.oas.models.OpenAPI;
+import io.swagger.v3.oas.models.Operation;
+import io.swagger.v3.oas.models.PathItem;
+import io.swagger.v3.oas.models.examples.Example;
+import io.swagger.v3.oas.models.media.Schema;
+import io.swagger.v3.oas.models.parameters.Parameter;
+import io.swagger.v3.parser.OpenAPIV3Parser;
+import io.swagger.v3.parser.core.models.ParseOptions;
+import poc.google.mcpserver.processor.OASSchemaHandler;
+
+/**
+ * A {@link ToolCallbackProvider} that dynamically creates {@link ToolCallback} instances
+ * from an OpenAPI specification file.
+ *
+ * This class parses an OpenAPI specification, and for each operation defined, it constructs
+ * a corresponding {@link FunctionToolCallback}. This tool can then be invoked by an AI model.
+ * The tool's function is to make an HTTP request to the API endpoint described by the operation.
+ * It handles schema processing, example extraction, and the actual REST call.
+ */
+public class DynamicOpenApiToolCallbackProvider implements ToolCallbackProvider {
+
+ private static final Logger logger = LoggerFactory.getLogger(DynamicOpenApiToolCallbackProvider.class);
+
+ private final OASSchemaHandler schemaProcessor;
+
+ private final RestTemplate restTemplate;
+ private final Map> toolMap = new LinkedHashMap<>();
+ private final Map opIdToInputSchemaMap = new HashMap<>();
+ private final Map opIdToDescriptionMap = new HashMap<>();
+ private final Map> opIdToParamMap = new HashMap<>();
+
+ private final ObjectMapper objectMapper = JsonMapper.builder().configure(MapperFeature.REQUIRE_HANDLERS_FOR_JAVA8_TIMES, false).build();
+
+ private final String defaultInputSchema = """
+ {
+ "type": "object",
+ "properties": {}
+ }
+ """;
+
+ /**
+ * Constructs a new DynamicOpenApiToolCallbackProvider.
+ * It reads and parses the OpenAPI specification from the given path, then constructs
+ * a tool for each operation found.
+ *
+ * @param openApiSpecPath The classpath resource path to the OpenAPI specification file.
+ * @param schemaProcessor A handler to process and simplify OpenAPI schemas.
+ * @param restTemplate The {@link RestTemplate} to use for making the API calls.
+ * @param apiUrlEnv The environment string (e.g., 'api.cert.platform') to substitute in the server URL.
+ */
+ public DynamicOpenApiToolCallbackProvider(
+ String openApiSpecPath,
+ OASSchemaHandler schemaProcessor,
+ RestTemplate restTemplate,
+ String apiUrlEnv
+ ) {
+
+ this.schemaProcessor = schemaProcessor;
+ this.restTemplate = restTemplate;
+
+ // objectMapper.enable(SerializationFeature.INDENT_OUTPUT);
+ objectMapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
+
+ try (InputStream inputStream = this.getClass().getResourceAsStream(openApiSpecPath)) {
+ if (inputStream == null) {
+ throw new IllegalArgumentException("OpenAPI spec not found on classpath: " + openApiSpecPath);
+ }
+
+ String spec = new String(inputStream.readAllBytes(), StandardCharsets.UTF_8);
+
+ ParseOptions options = new ParseOptions();
+ options.setResolve(true);
+ options.setResolveFully(true);
+ OpenAPI openAPI = new OpenAPIV3Parser().readContents(spec, null, options).getOpenAPI();
+
+ if (openAPI == null) {
+ throw new RuntimeException("Failed to read OpenAPI spec from: " + openApiSpecPath);
+ }
+
+
+ String apiUrl = openAPI.getServers().get(0).getUrl()
+ .replace("{environment}", apiUrlEnv);
+
+ openAPI.getPaths().forEach(
+ (path, pathItem) -> {
+ pathItem.readOperationsMap().forEach(
+ (httpMethod, operation) -> constructToolMap(apiUrl, path, httpMethod, operation, openAPI));
+ }
+ );
+
+ } catch (Exception e) {
+ logger.error("Failed to load and parse OpenAPI spec from: {}", openApiSpecPath, e);
+ throw new RuntimeException("Failed to load and parse OpenAPI spec", e);
+ }
+ }
+
+ /**
+ * Constructs a single tool (a function) based on an OpenAPI {@link Operation}.
+ * This method extracts the necessary information like operationId, input schema, and description,
+ * and creates a function that, when called, executes an HTTP request against the API.
+ *
+ * @param apiUrl The base URL of the API server.
+ * @param path The specific path for the operation (e.g., "/v1/offers/flightShop").
+ * @param httpMethod The HTTP method for the operation (e.g., POST).
+ * @param operation The OpenAPI {@link Operation} object.
+ * @param openAPI The fully parsed {@link OpenAPI} object for resolving references.
+ */
+ private void constructToolMap(String apiUrl, String path, PathItem.HttpMethod httpMethod, Operation operation, OpenAPI openAPI) {
+ String operationId = operation.getOperationId();
+ if (operationId == null || operationId.isBlank()) return;
+
+ String inputSchema = buildInputSchema(operation);
+ opIdToInputSchemaMap.put(operationId, inputSchema);
+
+ String opDesc = operation.getDescription();
+ String examples = extractExamplesForOp(operation, openAPI);
+ opDesc = opDesc + "\n" + "Below are some examples on how to structure the request body for the tool based on different use cases:\n" + examples;
+ opIdToDescriptionMap.put(operationId, opDesc);
+
+ toolMap.put(operationId, (input, context) -> {
+ try{
+ System.out.println("Tool operationId => " + operationId);
+
+ String resolvedPath = path;
+ String fullUrl = apiUrl + resolvedPath;
+
+ List paramList = opIdToParamMap.get(operationId);
+
+ Map restCallDataMap = constructUrlParamsAndRequestBodyFromInput(operationId, input, fullUrl, paramList);
+
+ String requestBody="";
+ try {
+ requestBody = objectMapper.writeValueAsString(restCallDataMap.get("requestBody"));
+ } catch (JsonProcessingException e) {
+ logger.error("Failed to convert to JSON request for operationId: {}", operationId, e);
+ }
+ String finalUrl = (String) restCallDataMap.get("finalUrl");
+
+ logger.debug("Executing tool '{}' with finalUrl: {} and requestBody: {}", operationId, finalUrl, requestBody);
+
+ HttpHeaders headers = new HttpHeaders();
+ // headers.setBearerAuth(authToken);
+ HttpEntity
+
+ 
+