Proof Holdings MCP server

@proof-holdings/mcp-server

MCP (Model Context Protocol) server for the proof.holdings API. Exposes 176 tools for AI agents to create verifications, validate proofs, manage assets, and more.

Two ways to connect

Hosted — nothing to install. The same tools are served over HTTP, and the client authenticates in the browser when a tool first needs an account:

claude mcp add --transport http proof https://api.proof.holdings/mcp

Or as a config fragment:

{ "mcpServers": { "proof": { "type": "http", "url": "https://api.proof.holdings/mcp" } } }

⚠️ Versions before 1.1.0 predate the delegation tools and the keyless public mode and expose an older, smaller surface than this README describes. If a client is pinned to 1.0.0, upgrade it or use the hosted server above. GET /api/v1/mcp/connect always serves the current instructions.

Local — this package. Installs and runs as a stdio server:

npm install -g @proof-holdings/mcp-server

Or run directly with npx (no install needed):

npx @proof-holdings/mcp-server

Configuration

Get your API key from the proof.holdings dashboard.

Client Setup

Add the following to your MCP client config file:

{
  "mcpServers": {
    "proof-holdings": {
      "command": "npx",
      "args": ["-y", "@proof-holdings/mcp-server"],
      "env": {
        "PROOF_API_KEY": "pk_live_your_key_here"
      }
    }
  }
}

Config file location by client:

If installed globally (npm install -g @proof-holdings/mcp-server), use "command": "proof-mcp" and remove the "args" field.

Tools (176 tools)

Group totals are exact. The tables name the tools you are most likely to reach for rather than all of them — your MCP client's own tools/list is the complete, current list, and it is the one this server answers from.

Verifications & requests (28 tools)

Domains & DNS (23 tools)

Account, settings & billing (37 tools)

Shortened. The full README is on GitHub.