"Accessing the OpenAI API" matching MCP connectors:
GET /v1/connectors — MCP directory API referenceMatching Connector Tools:
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
Guide developers from setup through a verified, policy-aware, audited Alter API call.
Hosted mock REST APIs as tools: seed data, import specs, query, write, snapshot, check API status.
SqueezeOS MCP for live machine discovery and x402-paid USDC APIs on Base.
ship-on-friday MCP — wraps StupidAPIs (requires X-API-Key)
Turn any task into the right API calls: discover, evaluate, and integrate public APIs.
schrodingers-boolean MCP — wraps StupidAPIs (requires X-API-Key)
Your DRF API as MCP tools — 1,800 endpoints become 16 dispatchers, permissioned by Django.
the-committee MCP — wraps StupidAPIs (requires X-API-Key)
chaos-index MCP — wraps StupidAPIs (requires X-API-Key)
passive-aggression MCP — wraps StupidAPIs (requires X-API-Key)
mercury-number MCP — wraps StupidAPIs (requires X-API-Key)
excuse MCP — wraps StupidAPIs (requires X-API-Key)
corporate-apology MCP — wraps StupidAPIs (requires X-API-Key)
always-seven MCP — wraps StupidAPIs (requires X-API-Key)
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.
npm MCP — wraps the npm Registry API (free, no auth)
JSONPlaceholder MCP — wraps JSONPlaceholder fake REST API (free, no auth)
