Every listed MCP server and skill. Filter by where it runs, what it needs, and how it is licensed.
1–7 of 7 tools for “protocol”
Clear allWeb scraping, inference, DNS, monitoring from residential IPs — pay per request in USDC
node.js/no license/no key
Read public AT Protocol profiles, records, threads, backlinks and lexicons. No API key required.
hosted by author/no license/no key
Commissioning, validation, and Confidence for AI agents, with real-USDC stakes on Base.
hosted by author/no license/no key
Sovereign AI agent economy: identity, payments, governance, exchanges. 400+ tools, ?mode=gateway.
hosted by author/no license/no key
Reference test server that exposes sample prompts, resources and tools for checking MCP clients.
official/node.js/MIT AND Apache-2.0/no key
Search, ask, research and reason tools backed by the Perplexity API platform.
official/node.js/MIT/needs perplexity api
Check how to contact a business website, and whether that contact path actually works.
official/mcp/link only
Who stands behind it
Who stands behind it
