Entity-ID Resolver MCP Server

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

claude mcp add resolver -- npx -y entityresolver-mcp

{
  "mcpServers": {
    "resolver": {
      "args": [
        "-y",
        "entityresolver-mcp"
      ],
      "command": "npx"
    }
  }
}

[mcp_servers.resolver]
command = "npx"
args = ["-y", "entityresolver-mcp"]

{
  "mcpServers": {
    "resolver": {
      "args": [
        "-y",
        "entityresolver-mcp"
      ],
      "command": "npx"
    }
  }
}

{
  "mcpServers": {
    "resolver": {
      "args": [
        "-y",
        "entityresolver-mcp"
      ],
      "command": "npx"
    }
  }
}

This one needs environment variables set before it will start: BUYER_PRIVATE_KEY (0x-hex private key of a dedicated low-value wallet holding USDC on Base. Optional — without it only the free demo_resolve tool is available; with it the paid resolve_entity tool settles $0.005 USDC per call via x402.), ENTITYRESOLVER_URL (Override the service base URL. Defaults to https://entityresolver.xyz.). The author declared them in the registry entry; get the values from the project itself.