Every server in the official MCP Registry. Ranked by whether they actually work: we connect to each one and publish what happens.
17,896 servers
Full read + write access to Slack Lists for AI: create, update, check off, reassign, delete.
Verifiable text/code/measurement tools for agents, each reproducing a named authority.
Read-only MCP server over robertdelanghe.dev's Sigstore-verified static API (stdio).
Fabrication-free, DOI-backed citations for AI agents — real openAlex sources, never hallucinated.
Workstation-local event bus: agents wait on or emit CI/pytest/Docker/filesystem events, no polling.
Agent-native lending on Solana via x402: borrow against tokens, arm in-vault TP/SL, repay.
Email tools for any IMAP/SMTP provider: list, read, search, send, and manage messages.
Book rides, request deliveries, estimate fares, track trips. 50+ countries.
Submit architecture docs, get a consulting-grade traceability audit at a shareable URL
CAST Dashboard MCP server for compliance, quality, and technical debt insights for AI agents
Patent dossiers, prosecution, claims + a legal layer (PTAB, litigation, term) + AI risk. USPTO.
Python MCP server: fair-price checks, leaderboards, Ed25519 receipt verification for x402/MPP.
Cookieless analytics for AI coding agents. Install in one prompt, 28 tools, OAuth onboarding.
Search and install 3,000+ AI skills from getskillsai.org into Claude Code, Cursor, ChatGPT.
Trust scores & reputation for the agent-to-agent economy. Verify A2A counterparties.
L402 Lightning paywall + DoI score gate for MCP tools: challenge, verify, score.
Validate tool-call args before execution. Returns LLM-friendly retry hints.
Look up permits, licenses, and fees for food service businesses in Austin, SF, and NYC.
Bitrix24 Cloud MCP server — 45 tools across CRM, Tasks, Deals, Leads, Files, Disk.
MCP server for read-only PostgreSQL database queries in Claude Desktop
GPU-accelerated MCP server for neural network training, deep learning, and model experimentation
Node.js and TypeScript debugging with 25+ tools for AI agents
Read-only MCP server that checks a Chinese customs declaration ledger for internal inconsistency.
Quarantine invalid or duplicate scraper records before an AI agent writes them downstream.
Up to 216 tools, including 8 Truncus email tools. Each service runs on its own API key.
Production TypeScript & JavaScript AST code analysis and risk assessment MCP server.