`isin_to_lei`

Pack: gleif · Endpoint: https://gateway.pipeworx.io/gleif/mcp

Resolve an ISIN (12-character international securities identifier, e.g. “CH0038863350” or “DE0007164600”) to the LEGAL ENTITY that issued the security: its LEI, registered legal name, jurisdiction, and status, via the official GLEIF ISIN-to-LEI mapping. Answers “who issued this security” / “which company is behind ISIN X” for non-US as well as US securities. An ISIN identifies one security while the issuer typically has many — the response says what it resolved TO. A valid ISIN with no mapping yet is reported as unmapped (the mapping lags new issuance), distinct from an invalid ISIN.

Parameters

Name	Type	Required	Description
`isin`	string	yes	12-character ISIN, e.g. “CH0038863350” (2-letter country prefix + 9-char NSIN + check digit)

Example call

Arguments

{
  "isin": "DE0007164600"
}

curl

curl -X POST https://gateway.pipeworx.io/gleif/mcp \
  -H 'Content-Type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"isin_to_lei","arguments":{"isin":"DE0007164600"}}}'

TypeScript (@pipeworx/sdk)

import { Pipeworx } from '@pipeworx/sdk';
const pipeworx = new Pipeworx();

const result = await pipeworx.call('isin_to_lei', {
  "isin": "DE0007164600"
});

Connect

Add this to your MCP client config, or use one-click install buttons:

{
  "mcpServers": {
    "gleif": {
      "url": "https://gateway.pipeworx.io/gleif/mcp"
    }
  }
}

See Getting Started for client-specific install steps.

isin_to_lei