GLEIF

live FinanceGovernment

Global Legal Entity Identifier Foundation — canonical 20-character LEI lookup and corporate hierarchy for ~2.5M financial-market entities. No auth.

7 tools
0ms auth
free tier 50 calls/day

Tools

search_lei

Search the GLEIF LEI registry by legal entity name. Returns matched entities with their 20-character LEI, jurisdiction, status, and BIC/ISIN cross-references. Use the LEI to resolve canonical identity

No parameters required.

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get_lei

Fetch the full Level 1 LEI record by 20-character LEI code. Returns legal name, registered address, headquarters address, entity category, legal form, registration authority, status, parent LEI (if an

No parameters required.

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get_lei_relationships

Fetch Level 2 corporate hierarchy for an LEI: direct parent, ultimate parent, and direct children. Use to map ownership trees across multinational groups. Accepts a company NAME as well as an LEI.

No parameters required.

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isin_to_lei

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, an

No parameters required.

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lei_to_isins

List ALL ISINs (securities) issued by a legal entity, from the official GLEIF ISIN-to-LEI mapping. Accepts a 20-character LEI or a company NAME (resolved automatically and echoed back). Answers "what

No parameters required.

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bic_to_lei

Resolve a SWIFT/BIC bank identifier code (8 or 11 characters, e.g. "DEUTDEFF" or "DEUTDEFFXXX") to the bank's legal entity: LEI, registered legal name, jurisdiction, and status, via the official GLEIF

No parameters required.

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lei_hierarchy_tree

Walk the FULL corporate ownership hierarchy for an entity in one call: the ancestor chain from the entity up to its ultimate parent, plus a multi-level tree of subsidiaries below it (breadth-first ove

No parameters required.

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Test with curl

The gateway speaks JSON-RPC 2.0 over HTTP POST. You can test any pack directly from the terminal.

List available tools
bash 
curl -X POST https://gateway.pipeworx.io/gleif/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'
Call a tool
bash 
curl -X POST https://gateway.pipeworx.io/gleif/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"search_lei","arguments":{}}}'

Use with the SDK

Install @pipeworx/sdk to call tools from any TypeScript/Node project.

TypeScript 
import { Pipeworx } from '@pipeworx/sdk';
const px = new Pipeworx();
const result = await px.call("search_lei", {});
ask_pipeworx 
// Or ask in plain English:
const answer = await px.ask("global legal entity identifier foundation — canonical 20-character lei lookup and corporate hierarchy for ~2");