"1&1" matching MCP connectors:
Matching Connector Tools:
Prompt evals over MCP: run a prompt on your dataset, score each output 1-5 with an LLM judge.
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
Rule engine with built-in simulation. 55 MCP tools for complete business rule lifecycle management.
PDF accessibility checks (veraPDF PDF/UA-1), auto-fix and Markdown conversion. EU-hosted.
MCP server for e-mail testing: create disposable inboxes, wait for delivery, and extract e-mail content or links - all from your AI agent or test automation workflow. Get a free API key on https://app.zyntra.app/
Hosted MCP endpoint with realistic fake data for prototyping agents. 12 tools, no setup.
Scan your MCP server for EU AI Act Art. 50 compliance, tool quality, OAuth hygiene, and security issues before you ship. Developer $19/mo, Team $49/mo. A technical preflight check, not legal advice.