"Search functionality without API key requirement" 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.
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
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.
Detect breaking changes, generate changelogs, diff, and validate OpenAPI specs.
Signed, offline-verifiable contract-change authorization. Only a granted change can proceed.
Guide developers from setup through a verified, policy-aware, audited Alter API call.
What is known to be broken in an MCP server or API operation, with the check that found it.
AI-callable tools for API mocking, testing, monitoring, security, and automation.
Paid OpenAPI audit and API change detection for agents. $0.10 USDC per analysis via x402 on Base.
Free tools: live x402 endpoint directory + probe, verified sudoku generator, Docs API pricing.
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.
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.
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.
Any API, four tools: discover, call with routing and signed receipts, verify, dispute.
Web search for agents, one x402 payment: real results, provider failover, signed receipt. $0.01.
Free agent-service discovery, OpenAPI document checks, and receipt verification. No API key needed.
{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"whoami","arguments":{}}} free no key
Free agent tests (no account or payment); paid ping.
