MCP Servers
63,071 MCP servers for AI apps. Filter by category, badge and popularity.
Security
MCP server for PayPerByte — a verify-before-act trust layer for AI agent data. 15 tools to discover, subscribe to, or pay-per-call for first-party feeds (markets, security/threat-intel, legal oracles). Every payload carries an on-chain EIP-712 PayloadAttestation the agent recompu.
Cybersecurity intelligence for AI agents — search 200,000+ CVEs, check the CISA Known Exploited Vulnerabilities catalog, enumerate subdomains via Certificate Transparency, audit DNS and email security, scan internet-exposed hosts via Censys, and investigate domain registration —
New to MCP?
From what the protocol is to installing your first server, these answers cover most first questions.
An open protocol that defines how AI applications connect to external tools and data in a uniform way. Clients talk to the model; MCP servers provide tools, resources and prompt templates. They exchange standard messages, so one server can be reused by many clients.
