MCP Server

Entity-ID Resolver MCP Server

Name: Entity-ID Resolver MCP Server
Author: xyz.entityresolver

xyz.entityresolver/resolver

Registry

What is the Entity-ID Resolver MCP server?

Ambiguous name/ticker to verified IDs: SEC CIK, GLEIF LEI, ISIN, Wikidata, CoinGecko. Non-US too.

How to install Entity-ID Resolver

Copy-paste configuration for popular MCP clients.

transport: stdio

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

Environment / auth

BUYER_PRIVATE_KEY
secret
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.

Claude Desktop

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

{
  "mcpServers": {
    "resolver": {
      "command": "npx",
      "args": [
        "-y",
        "entityresolver-mcp"
      ],
      "env": {
        "BUYER_PRIVATE_KEY": "<YOUR_BUYER_PRIVATE_KEY>",
        "ENTITYRESOLVER_URL": "<YOUR_ENTITYRESOLVER_URL>"
      }
    }
  }
}

Cursor

~/.cursor/mcp.json

{
  "mcpServers": {
    "resolver": {
      "command": "npx",
      "args": [
        "-y",
        "entityresolver-mcp"
      ],
      "env": {
        "BUYER_PRIVATE_KEY": "<YOUR_BUYER_PRIVATE_KEY>",
        "ENTITYRESOLVER_URL": "<YOUR_ENTITYRESOLVER_URL>"
      }
    }
  }
}

Windsurf

~/.codeium/windsurf/mcp_config.json

{
  "mcpServers": {
    "resolver": {
      "command": "npx",
      "args": [
        "-y",
        "entityresolver-mcp"
      ],
      "env": {
        "BUYER_PRIVATE_KEY": "<YOUR_BUYER_PRIVATE_KEY>",
        "ENTITYRESOLVER_URL": "<YOUR_ENTITYRESOLVER_URL>"
      }
    }
  }
}

VS Code

.vscode/mcp.json

{
  "servers": {
    "resolver": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "entityresolver-mcp"
      ],
      "env": {
        "BUYER_PRIVATE_KEY": "<YOUR_BUYER_PRIVATE_KEY>",
        "ENTITYRESOLVER_URL": "<YOUR_ENTITYRESOLVER_URL>"
      }
    }
  }
}

Claude Code

claude mcp add resolver --env BUYER_PRIVATE_KEY=<YOUR_BUYER_PRIVATE_KEY> --env ENTITYRESOLVER_URL=<YOUR_ENTITYRESOLVER_URL> -- npx -y entityresolver-mcp