"A to-do list for today's tasks" matching MCP connectors:
Matching Connector Tools:
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
Search millions of x402 APIs for data, finance, validation, security, inventory, sync and automation
MCP tool observatory: do registry servers answer, and are their answers true? No key.
A webhook inbox for agents: one call returns a live URL. Mock, verify, inspect and replay.
Discover, pay for, execute, and publish APIs through Apiosk.
ship-on-friday MCP — wraps StupidAPIs (requires X-API-Key)
schrodingers-boolean MCP — wraps StupidAPIs (requires X-API-Key)
Check an MCP endpoint resolves: liveness, live tool list, schema drift. Free.
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)