Squid

Squid is a high-performance caching and forwarding HTTP web proxy used for content caching, access control, and bandwidth management. It supports HTTP, HTTPS, FTP, and other protocols, providing caching proxy features, access control lists, SSL/TLS inspection, and web content filtering for enterprises and internet service providers.

• Website: http://www.squid-cache.org/
• Documentation: http://www.squid-cache.org/Doc/
• GitHub Organization: https://github.com/squid-cache

APIs

Squid Cache Manager API

The Squid Cache Manager is a built-in HTTP management interface that exposes internal statistics, cache operations, and runtime configuration via HTTP requests. It provides endpoints for retrieving cache statistics, managing active connections, viewing access control lists, and performing cache operations such as reconfigure and log rotation.

• Base URL: http://localhost:3128/squid-internal-mgr
• Documentation: http://www.squid-cache.org/Doc/config/cachemgr_passwd/
• OpenAPI: squid-cache-manager-openapi.yml

Squid Access Control Configuration API

Squid provides extensive access control configuration through its squid.conf file and runtime reload capabilities. The access control system supports ACLs for IP addresses, domain names, URL patterns, user authentication, time-of-day restrictions, and MIME type filtering.

• Documentation: http://www.squid-cache.org/Doc/config/acl/

Artifacts

OpenAPI Specifications

Spec	Description
squid-cache-manager-openapi.yml	Squid Cache Manager management interface

Spectral Rules

Ruleset	Description
squid-rules.yml	Spectral rules for Squid API conventions

Capabilities

Workflow Capabilities

Capability	Description
proxy-management.yaml	Unified proxy management and monitoring workflow

Shared Definitions

Shared	Description
cache-manager.yaml	Squid Cache Manager API consumer definition

JSON Schema

Schema	Description
squid-cache-stats-schema.json	Cache statistics and performance metrics schema

JSON Structure

Structure	Description
squid-cache-stats-structure.json	Cache statistics structure documentation

JSON-LD

Context	Description
squid-context.jsonld	JSON-LD context for Squid cache vocabulary

Examples

Example	Description
squid-get-cache-info-example.json	Get cache information example
squid-get-connections-example.json	Get active connections example

Vocabulary

Vocabulary	Description
squid-vocabulary.yml	Squid proxy domain vocabulary and terminology