MCP · A2A · x402 · agentndx.ai llms.txt MCP endpoint
Name Protocols Auth Transport Install Status
AgentNDX
A network registry for the agentic web. Search, browse, and query MCP servers, A2A agents, and x402-enabled services.
MCPx402
x402 http verified
Filesystem MCP
Local filesystem access for agents. Read, write, search, and manipulate files and directories with configurable path permissions.
MCP
none stdio npx @modelcontextprotocol/server-filesystem /path/to/dir verified
PostgreSQL MCP
Read-only PostgreSQL access via MCP. Query databases, inspect schemas, and retrieve structured data. Safe — no write operations.
MCP
api-key stdio npx @modelcontextprotocol/server-postgres postgresql://user:pass@host/db verified
Memory MCP
Persistent memory for AI agents using a knowledge graph. Store, retrieve, and reason over facts, entities, and relationships across sessions.
MCP
none stdio npx @modelcontextprotocol/server-memory verified
Machine-readable: /api/search?category=data  ·  llms.txt