"Self-Training Coder Resources and Tools" matching MCP connectors:
GET /v1/connectors — MCP directory API referenceMatching Connector Tools:
Conformance checker for MCP servers. Free, no key, verdicts recomputable and re-measured daily.
Independent health, price and history for x402/MPP endpoints. Metered over x402; free grade on web.
Detect breaking changes, generate changelogs, diff, and validate OpenAPI specs.
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
Discover, pay for, execute, and publish APIs through Apiosk.
Any API, four tools: discover, call with routing and signed receipts, verify, dispute.
Generates deterministic webhook HMAC-SHA256 fixtures and optionally verifies a supplied signature...
Test HTTP 429/503 retries and Retry-After with server-observed traces; share synthetic findings.
{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"whoami","arguments":{}}} free no key
Replay supplied records against old and new bounded JSON Schema draft-07 contracts. Receive exact...
Point Gecko at an OpenAPI spec; get first-call-correct, auth-hidden agent tools.
SqueezeOS MCP for live machine discovery and x402-paid USDC APIs on Base.
Deploy production REST APIs from JSON schemas in seconds. Manage projects, schemas, and deployments.
Your DRF API as MCP tools — 1,800 endpoints become 16 dispatchers, permissioned by Django.
Read-only ArcadeOps discovery for developer docs, OAuth, OpenAPI and synthetic sandbox.
Turn any task into the right API calls: discover, evaluate, and integrate public APIs.
Validate OpenRTB bid requests and responses against IAB specs. ARTF, Rust core.
Point Claude Code, Qwen Code, Cursor, or any MCP client at https://docs.jmeter.ai/api/mcp and your agent answers JMeter questions grounded in this documentation, with a source link for every answer. Free, no API key, no signup.
Keyless webhook endpoints: capture, wait, replay, forward, and generate types from real traffic.
Verify an agent's advertised route, price, payment details, and schemas against its live endpoint.
