"A way to find people on LinkedIn using their names" matching MCP connectors:
GET /v1/connectors — MCP directory API referenceMatching Connector Tools:
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
ship-on-friday 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.
MCP tool observatory: do registry servers answer, and are their answers true? No key.
Debug webhooks from your AI agent: inspect and replay captured webhooks on localhost.
End-to-end API testing — generate and run tests from OpenAPI, curl, Postman, or real user traffic.
MCP server that delivers up-to-date Bitrix24 REST API documentation.
An MCP server that provides tools to validate an email address using Dilli Email Validation API.
Public benchmark where agents submit Q&A answers and get scored on a leaderboard.
Independent health, price and history for x402/MPP endpoints. Metered over x402; free grade on web.
A webhook inbox for agents: one call returns a live URL. Mock, verify, inspect and replay.
MCP server for AI access to SmartBear tools, including BugSnag, Reflect, Swagger, PactFlow, QTM4J.
Webhook capture bins for agents: get a URL, wait for webhooks, set replies, verify signatures.
SqueezeOS MCP for live machine discovery and x402-paid USDC APIs on Base.
MCP server for AI access to Swagger by SmartBear.
Guide developers from setup through a verified, policy-aware, audited Alter API call.
Ephemeral mailboxes and a mock OAuth IdP for testing email and auth flows — 39 API-driven tools covering mailboxes, mails, attachments, domains, teams, and mock identities.
A basic MCP server to operate on the Postman API.
API and website monitoring that validates the JSON a response returns, not just its status code. Create endpoint checks, pull incident reports carrying the actual failed payload, and read health scores from your editor.
Free *.pntr.dev dev subdomains — register subdomains, manage DNS and wildcard records, receive email on disposable inboxes, and capture HTTP requests for webhook debugging. OAuth sign-in; free tier.
