Proof Holdings MCP Server

holdings.proof/mcp-server

Repository Registry

What is the Proof Holdings MCP server?

One API, all things verified — control, delegation, human approval, anti-impersonation.

How to install Proof Holdings

Copy-paste configuration for popular MCP clients.

transport: stdio

Config generated by PluginBench — verify against the source before use.

Environment / auth

PROOF_API_KEY
secret
Proof Holdings API key (Bearer). Optional: without it the server runs in public mode, where account creation, login and public verification tools work and every other tool asks for a key. Create one in the dashboard at https://proof.holdings. A key minted from inside a session with create_api_key takes effect only once it is set here and the server is restarted — this value is read at startup and has no runtime setter.
PROOF_BASE_URL
API base URL. Defaults to https://api.proof.holdings.

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@proof-holdings/mcp-server"
      ],
      "env": {
        "PROOF_API_KEY": "<YOUR_PROOF_API_KEY>",
        "PROOF_BASE_URL": "<YOUR_PROOF_BASE_URL>"
      }
    }
  }
}

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