diff --git a/typescript/create-onchain-agent/src/constants.ts b/typescript/create-onchain-agent/src/constants.ts
index 7ebab6606..c8bfc563a 100644
--- a/typescript/create-onchain-agent/src/constants.ts
+++ b/typescript/create-onchain-agent/src/constants.ts
@@ -1,14 +1,6 @@
-import {
-  EVMNetwork,
-  Network,
-  SVMNetwork,
-  WalletProviderChoice,
-  AgentkitRouteConfiguration,
-  Framework,
-  Template,
-} from "./types";
-
-export const EVM_NETWORKS: EVMNetwork[] = [
+import { AgentkitRouteConfiguration } from "./types";
+
+export const EVM_NETWORKS = [
   "base-mainnet",
   "base-sepolia",
   "ethereum-mainnet",
@@ -19,20 +11,26 @@ export const EVM_NETWORKS: EVMNetwork[] = [
   "optimism-sepolia",
   "polygon-mainnet",
   "polygon-mumbai",
-];
+] as const;
 
-export const SVM_NETWORKS: SVMNetwork[] = ["solana-mainnet", "solana-devnet", "solana-testnet"];
+export type EVMNetwork = (typeof EVM_NETWORKS)[number];
 
-const CDP_SUPPORTED_EVM_WALLET_PROVIDERS: WalletProviderChoice[] = [
-  "CDP",
-  "SmartWallet",
-  "Viem",
-  "Privy",
-];
-const SVM_WALLET_PROVIDERS: WalletProviderChoice[] = ["SolanaKeypair", "Privy"];
-export const NON_CDP_SUPPORTED_EVM_WALLET_PROVIDERS: WalletProviderChoice[] = ["Viem", "Privy"];
+export const SVM_NETWORKS = ["solana-mainnet", "solana-devnet", "solana-testnet"] as const;
+
+export type SVMNetwork = (typeof SVM_NETWORKS)[number];
+
+export type Network = EVMNetwork | SVMNetwork;
 
-export const NetworkToWalletProviders: Record<Network, WalletProviderChoice[]> = {
+const CDP_SUPPORTED_EVM_WALLET_PROVIDERS = ["CDP", "SmartWallet", "Viem", "Privy"] as const;
+const SVM_WALLET_PROVIDERS = ["SolanaKeypair", "Privy"] as const;
+export const NON_CDP_SUPPORTED_EVM_WALLET_PROVIDERS = ["Viem", "Privy"] as const;
+
+export type WalletProviderChoice =
+  | (typeof CDP_SUPPORTED_EVM_WALLET_PROVIDERS)[number]
+  | (typeof SVM_WALLET_PROVIDERS)[number]
+  | (typeof NON_CDP_SUPPORTED_EVM_WALLET_PROVIDERS)[number];
+
+export const NetworkToWalletProviders: Record<Network, readonly WalletProviderChoice[]> = {
   "arbitrum-mainnet": CDP_SUPPORTED_EVM_WALLET_PROVIDERS,
   "arbitrum-sepolia": NON_CDP_SUPPORTED_EVM_WALLET_PROVIDERS,
   "base-mainnet": CDP_SUPPORTED_EVM_WALLET_PROVIDERS,
@@ -157,9 +155,13 @@ export const AgentkitRouteConfigurations: Record<
   },
 };
 
-export const Frameworks: Framework[] = ["Langchain", "Vercel AI SDK"];
+export const Frameworks = ["Langchain", "Vercel AI SDK"] as const;
+
+export type Framework = (typeof Frameworks)[number];
+
+export const Templates = ["next"] as const;
 
-export const Templates: Template[] = ["next"];
+export type Template = (typeof Templates)[number];
 
 export const FrameworkToTemplates: Record<Framework, Template[]> = {
   Langchain: ["next"],
diff --git a/typescript/create-onchain-agent/src/types.ts b/typescript/create-onchain-agent/src/types.ts
index e6e77919c..c14ca347e 100644
--- a/typescript/create-onchain-agent/src/types.ts
+++ b/typescript/create-onchain-agent/src/types.ts
@@ -1,20 +1,4 @@
-export type EVMNetwork =
-  | "ethereum-mainnet"
-  | "ethereum-sepolia"
-  | "polygon-mainnet"
-  | "polygon-mumbai"
-  | "base-mainnet"
-  | "base-sepolia"
-  | "arbitrum-mainnet"
-  | "arbitrum-sepolia"
-  | "optimism-mainnet"
-  | "optimism-sepolia";
-
-export type SVMNetwork = "solana-mainnet" | "solana-devnet" | "solana-testnet";
-
-export type Network = EVMNetwork | SVMNetwork;
-
-export type WalletProviderChoice = "CDP" | "Viem" | "Privy" | "SolanaKeypair" | "SmartWallet";
+import { Network } from "./constants";
 
 export type AgentkitRouteConfiguration = {
   env: {
@@ -33,6 +17,11 @@ export type NetworkSelection = {
   rpcUrl?: string;
 };
 
-export type Framework = "Langchain" | "Vercel AI SDK";
-
-export type Template = "next";
+export type {
+  EVMNetwork,
+  SVMNetwork,
+  Network,
+  WalletProviderChoice,
+  Framework,
+  Template,
+} from "./constants";
diff --git a/typescript/create-onchain-agent/src/utils.ts b/typescript/create-onchain-agent/src/utils.ts
index 423157722..9c10a1333 100644
--- a/typescript/create-onchain-agent/src/utils.ts
+++ b/typescript/create-onchain-agent/src/utils.ts
@@ -159,7 +159,7 @@ export function detectPackageManager(): string {
  * @param {Network} [network] - The optional network to get wallet providers for.
  * @returns {WalletProviderChoice[]} An array of wallet providers for the specified network.
  */
-export const getWalletProviders = (network?: Network): WalletProviderChoice[] => {
+export const getWalletProviders = (network?: Network): readonly WalletProviderChoice[] => {
   if (network) {
     return NetworkToWalletProviders[network];
   }