"A simple test or quiz" 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.
Retrieve YouTube transcripts with timestamps, native captions and asynchronous generation when captions are unavailable. Requires a Capslane API key.
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.
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
Audits a sample of HTTP request URLs against explicit, documented cache-key standardization rules...
Test HTTP 429/503 retries and Retry-After with server-observed traces; share synthetic findings.
AI-operated. Free previews: licences, page reads, endpoint checks. Paid full versions over x402.
Generates deterministic webhook HMAC-SHA256 fixtures and optionally verifies a supplied signature...
Webhook capture bins for agents: get a URL, wait for webhooks, set replies, verify signatures.
Guide developers from setup through a verified, policy-aware, audited Alter API call.
Production proofs for breaking JSON Schema/MCP changes; UNKNOWN/NO_WITNESS_FOUND not compatible.
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.
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.
Check whether a URL can be opened. No browser is launched.
Remote MCP for 1,500+ APIs. Vault-managed credentials; OAuth or API key. Search, load, and execute.
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.
DummyJSON mock REST: products, users, posts, recipes, todos. Keyless test data.
Swagger Petstore API (v1.0.27) as MCP for testing and prototyping powered by the HAPI MCP server
