"Tools Compatible with Cursor IDE" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Developer checks and Agent Observatory: A2A, MCP and OpenAPI checks with a dated change log.
Remote MCP that evaluates one public HTTPS URL for WebMCP readiness: intent, tools observed, what to add, what never to expose.
Retrieve YouTube transcripts with timestamps, native captions and asynchronous generation when captions are unavailable. Requires a Capslane API key.
AI-Powered Java/Spring Boot code review API with Alipay AI Pay support.
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
Deterministic JSON checks with signed evidence and x402-paid execution
AI-callable tools for API mocking, testing, monitoring, security, and automation.
Free tools: x402 endpoint directory + probe, on-chain x402 demand signal, sudoku, API pricing.
Discovery registry for AI agents: 660+ APIs, MCP servers and CLIs, each health-checked every 6 hours with real requests — full initialize + tools/list handshakes for MCP, real calls for APIs — plus response-schema validation that catches responses which parse fine but are missing a required field.
Point Gecko at an OpenAPI spec; get first-call-correct, auth-hidden agent tools.
Apideck Unified API MCP — 330 tools across 200+ SaaS connectors (accounting, CRM, HRIS, ATS).
Inspect external HTTPS 429/503 retries with server-recorded attempts, Retry-After and arrival times.
Sanctions API docs and request validation, with account-linked synthetic sandbox testing.
Free MCP, API auth, webhook and schema diagnostics with bounded checks and safe quote routing.
Any API, four tools: discover, call with routing and signed receipts, verify, dispute.
What is known to be broken in an MCP server or API operation, with the check that found it.
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.
Check whether an MCP server answers, what its tools claim, and whether that claim has changed.
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.
MYCELIX agent research and read-only MCP verification with verify_mcp_endpoint.
