This MCP server resolves ambiguous entity names or tickers into verified identifiers across multiple sources, including SEC CIK, GLEIF LEI, ISIN, Wikidata, and CoinGecko. It also supports non-US entities, mapping inputs to standardized IDs using the server’s configured resolver capabilities.

🛠️ Key Features

Resolves ambiguous name/ticker inputs to verified IDs
Supports SEC CIK, GLEIF LEI, ISIN, Wikidata, and CoinGecko identifiers
Covers non-US entities in addition to US sources

🚀 Use Cases

Convert an imprecise company or token name/ticker into verified identifier(s)
Normalize entities for downstream systems that require standard IDs

⚡ Developer Benefits

Provides a unified resolution target set (SEC CIK, LEI, ISIN, Wikidata, CoinGecko)
Enables identifier normalization across US and non-US entities

⚠️ Limitations

The description does not specify which exact identifier types are returned in all cases, or the resolution confidence/selection behavior.

Install

Configuration

Environment variables

BUYER_PRIVATE_KEYsecret

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.

Add to VS Code Add to Cursor

claude_desktop_config.json

json

{
  "mcpServers": {
    "resolver": {
      "command": "npx",
      "args": [
        "-y",
        "entityresolver-mcp@0.2.0"
      ],
      "env": {
        "BUYER_PRIVATE_KEY": "<YOUR_BUYER_PRIVATE_KEY>",
        "ENTITYRESOLVER_URL": "<YOUR_ENTITYRESOLVER_URL>"
      }
    }
  }
}

Entity-ID Resolver