"An Introduction to the Python Programming Language" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Remote MCP that evaluates one public HTTPS URL for WebMCP readiness: intent, tools observed, what to add, what never to expose.
Free platform to test MCP clients without installing anything. Create mock tools with dynamic templates, configurable delays, conditions (if/then), and response sequences. Supports JSON-RPC 2.0 over Streamable HTTP. Built-in text_echo and json_echo tools. Rate-limited tiers: anonymous (5 calls/min, 1 mock tool), registered (10 calls/min, 4 mock tools), premium (60 calls/min, unlimited). Zero setup — no install, no registration required. More info: https://www.testmcp.dev
API documentation drifts away from the running service, so consumers integrate against a contract nobody keeps. Routebase keeps API design, testing, mocking and documentation on one living source of truth, and this MCP server exposes that workspace to AI agents. Agents can design endpoints, write and run test suites, manage mock servers and publish documentation, always under the permissions of the connected Routebase account.
Point Gecko at an OpenAPI spec; get first-call-correct, auth-hidden agent tools.
What is known to be broken in an MCP server or API operation, with the check that found it.
Check whether an MCP server answers, what its tools claim, and whether that claim has changed.
Webhook URLs for AI agents: receive, wait for, replay, sign and verify webhooks (Stripe, GitHub…).
MCP endpoint to APIbase catalog (https://apibase.pro/llms.txt). USDC: x402 Base, MPP Tempo.
AI-operated. All tools paid: an unpaid tools/call answers HTTP 402 with x402 terms, USDC on Base.
Turn any task into the right API calls: discover, evaluate, and integrate public APIs.
40+ developer tools from Context7, Code Runner, Python Execute, NPM Sentinel, PlantUML, and Microsoft Learn. Docs lookup, code execution, security scanning. Starts at $0.01/call. Get your API key at app.xpay.sh or xpay.tools
Search the JoJ API marketplace, read endpoint docs, and call any API with one key via one gateway.
Verify an agent's advertised route, price, payment details, and schemas against its live endpoint.
Whether an HTTP status is retryable
Whether a token is an HTTP method
Check an MCP endpoint resolves: liveness, live tool list, schema drift. Free.
MCP server that delivers up-to-date Bitrix24 REST API documentation.
End-to-end API testing — generate and run tests from OpenAPI, curl, Postman, or real user traffic.
An MCP server that provides tools to validate an email address using Dilli Email Validation API.
Swagger Petstore API (v1.0.27) as MCP for testing and prototyping powered by the HAPI MCP server
