"1&1" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
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.
Prompt evals over MCP: run a prompt on your dataset, score each output 1-5 with an LLM judge.
Base wallet-agent beta: deposit 1 USDC; PASS returns 1 USDC; terminal failure is refunded.
12 synthetic transcript exception cases: duplicate payments, audio hold list entries, missing docume
12 synthetic data record exception cases: duplicate payments, source hold list entries, missing docu
12 synthetic resume exception cases: duplicate payouts, hire hold list entries, missing documentatio
12 synthetic resume exception cases: duplicate payouts, hire hold list entries, missing documentatio
12 synthetic onboarding document exception cases: duplicate payments, region hold list entries, miss
12 synthetic authorization exception cases: duplicate payments, investigational hold list entries, m
bcrypt $2 hash shape, value discarded
GB18030 4-byte band, input discarded
Security + bug + perf + refactor audit for Python. Returns 0-10 score + MD report.
Build, install, drive, and inspect iOS apps in disposable hosted Simulators with 28 tools for UI automation, logs, screenshots, and recordings.
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/
PDF accessibility checks (veraPDF PDF/UA-1), auto-fix and Markdown conversion. EU-hosted.
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.