mcp-anything MCP server

mcp-anything

One MCP server that can discover and call (almost) any MCP server in the world.

mcp-anything is a meta-MCP server: instead of configuring dozens of MCP servers in your host (Claude Desktop, Claude Code, Cursor, ...), you configure exactly one. It indexes the official MCP registry locally and exposes five small meta-tools that let the model search for servers, inspect them, and call their tools on the fly — without ever loading thousands of tool schemas into the context window.

Host / LLM
    │  (5 meta-tools, constant context cost)
    ▼
mcp-anything ──── local BM25 index ◄──┬── official MCP registry   (moderated, richest metadata)
    │        (cross-source dedupe,    ├── PulseMCP    (~22k servers, stars & downloads)
    │         popularity-boosted      ├── npm         (~67k packages tagged mcp)
    │         ranking)                └── Glama       (~75k indexed servers)
    │
    │  security policy: SSRF guard · stdio allowlist · secrets injection · timeouts
    ▼
downstream MCP servers   (streamable-http / sse / stdio via npx·uvx)

Why

• Discovery: thousands of MCP servers exist; your host only knows the ones you hand-configured.
• Context: loading many servers burns your context window. Meta-tools keep the cost constant — the model searches for capabilities in two phases (search → inspect → call), the same pattern Anthropic's Tool Search uses.
• One config: a single entry in your MCP client config instead of one per server.

Quickstart

# Run directly (Node >= 20):
npx mcp-anything sync     # first-time index download (~few seconds)
npx mcp-anything serve    # start the meta-MCP server on stdio

Claude Code

claude mcp add anything -- npx -y mcp-anything serve

Claude Desktop / other hosts

{
  "mcpServers": {
    "anything": {
      "command": "npx",
      "args": ["-y", "mcp-anything", "serve"]
    }
  }
}

Then just ask your model things like "find an MCP server that can query Postgres and list its tools" — it will use the meta-tools by itself.

HTTP mode & hosted discovery

mcp-anything serve --http                    # streamable HTTP on :8080 (POST /mcp)
mcp-anything serve --http --discovery-only   # safe for public hosting: search/describe only

A public instance with execution enabled would be an open proxy — never host a full instance publicly. The Dockerfile defaults to discovery-only for exactly this reason. A hosted discovery instance lets any MCP client search the ecosystem; actually connecting and calling tools is what the local install is for.

CLI

mcp-anything sync             # refresh the registry index
mcp-anything search "weather" # search the index from your terminal
mcp-anything serve            # stdio MCP server (default command)

The meta-tools

Shortened. The full README is on GitHub.