ToolSchema Forge

Converts an OpenAPI 3.0/3.1 or Swagger 2.0 JSON spec into one LLM tool definition per operation, in OpenAI, OpenAI strict, Anthropic, Gemini, MCP or JSON Schema format. Path, query and header parameters become properties; the JSON request body becomes a 'body' property; local $refs are inlined. Optional filter by operationId or 'METHOD /path'. Deterministic, no LLM.

Open endpoint ↗

Price per call: $0.02
Chain: Base
Method: POST
Paid calls · 30 days: 0

Call it from code

This API is run by its own provider and paid directly through x402. We list it so you can find it; we don't route or hold the payment.

import { x402Client, wrapFetchWithPayment } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";

const client = new x402Client();
registerExactEvmScheme(client, { signer: agentAccount });

const pay = wrapFetchWithPayment(fetch, client);
const res = await pay("https://toolschema-forge.toolschemaforge.workers.dev/v1/openapi/to-tools", { method: "POST" });
console.log(await res.json());

https://toolschema-forge.toolschemaforge.workers.dev/v1/openapi/to-tools