"How to read PDFs and images" matching MCP connectors:
Matching Connector Tools:
Conformance checker for MCP servers. Free, no key, verdicts recomputable and re-measured daily.
Detect breaking changes, generate changelogs, diff, and validate OpenAPI specs.
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
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.
Deterministic JSON checks with signed evidence and x402-paid execution
ship-on-friday MCP — wraps StupidAPIs (requires X-API-Key)
Deploy production REST APIs from JSON schemas in seconds. Manage projects, schemas, and deployments.
Discover, pay for, execute, and publish APIs through Apiosk.
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.