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Conformance checker for MCP servers. Free, no key, verdicts recomputable and re-measured daily.
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
Discover, pay for, execute, and publish APIs through Apiosk.
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.
Search the JoJ API marketplace, read endpoint docs, and call any API with one key via one gateway.
ship-on-friday MCP — wraps StupidAPIs (requires X-API-Key)
schrodingers-boolean MCP — wraps StupidAPIs (requires X-API-Key)
passive-aggression MCP — wraps StupidAPIs (requires X-API-Key)
Anonymous webhook capture, inspection, waiting, and response configuration for AI agents.
JSONPlaceholder MCP — wraps JSONPlaceholder fake REST API (free, no auth)
victorian-complaint MCP — wraps StupidAPIs (requires X-API-Key)
Instant no-signup webhook & HTTP-request inspector for testing webhooks and agent tool-callbacks.