You can access the GLEIF LEI Lookup & Entity Change Monitor programmatically from your own applications by using the Apify API. You can also choose the language preference from below. To use the Apify API, you’ll need an Apify account and your API token, found in API & Integrations in Apify Console.

Python

JavaScript

CLI

OpenAPI

HTTP

MCP

1import { ApifyClient } from 'apify-client';
2
3// Initialize the ApifyClient with your Apify API token
4// Replace the '<YOUR_API_TOKEN>' with your token
5const client = new ApifyClient({
6    token: '<YOUR_API_TOKEN>',
7});
8
9// Prepare Actor input
10const input = {
11    "mode": "baseline",
12    "leis": [
13        "529900T8BM49AURSDO55"
14    ],
15    "maxEntities": 5,
16    "maxTrackedItems": 25,
17    "maxBuyerChargeUsd": 0.25,
18    "outputProfile": "standard",
19    "reviewPolicy": "balanced",
20    "deltaWindow": "INTRA_DAY",
21    "includeUnchanged": false,
22    "includeParentContext": true,
23    "resolveReferenceData": true,
24    "includeRelationships": false,
25    "includeChildren": false,
26    "includeSuccessorsPredecessors": false,
27    "includeSecurities": false,
28    "expandHierarchy": false,
29    "maxHierarchyDepth": 5,
30    "maxSearchResultsPerName": 10,
31    "maxRelationships": 20,
32    "maxSecurities": 50,
33    "maxRequests": 60,
34    "maxSourceBytes": 5000000,
35    "maxRuntimeSecs": 120
36};
37
38// Run the Actor and wait for it to finish
39const run = await client.actor("luminar/gleif-lei-change-monitor").call(input);
40
41// Fetch and print Actor results from the run's dataset (if any)
42console.log('Results from dataset');
43console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`);
44const { items } = await client.dataset(run.defaultDatasetId).listItems();
45items.forEach((item) => {
46    console.dir(item);
47});
48
49// 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs

GLEIF LEI Lookup, Renewal & Relationship Monitor API in JavaScript

The Apify API client for JavaScript is the official library that allows you to use GLEIF LEI Lookup & Entity Change Monitor API in JavaScript or TypeScript, providing convenience functions and automatic retries on errors.

Install the apify-client

$npm install apify-client

Other API clients include:

GLEIF LEI Lookup & Entity Change Monitor API in Python

GLEIF LEI Lookup & Entity Change Monitor API through CLI

GLEIF LEI Lookup & Entity Change Monitor OpenAPI definition

GLEIF LEI Lookup & Entity Change Monitor API

GLEIF LEI Lookup

maximedupre/gleif-lei-lookup

Look up GLEIF LEI entities by company name, LEI code, or country filters. Export legal entity data, registration dates, addresses, parent relationships, ISIN links, and deterministic KYB decision fields.

Maxime Dupré

Gleif Scraper

fortuitous_pirate/gleif-scraper

Scrape Legal Entity Identifier (LEI) records from GLEIF: company names, addresses, registration numbers, parent entities, and LEI status for 2.5M+ global organizations.

Fortuitous Pirate

GLEIF LEI Company Search — Global Legal Entity Database

agoradelmediterraneo/gleif-company-search

Search 2.5M legal entities worldwide by name or country using the official GLEIF LEI database. Returns LEI code, legal name, registered address, entity status and jurisdiction. Free GLEIF API, no key required.

Agora

Gleif Lei Scraper

smorgi_apps/gleif-lei-scraper

Smorgi Apps

GLEIF LEI Scraper (Legal Entity Data)

opendata-labs/gleif-lei-scraper

Scrape the official GLEIF register of Legal Entity Identifiers (LEI) — legal entities worldwide, their addresses, jurisdiction, status and corporate ownership tree — through GLEIF's own free public API. Built for KYC, AML, due diligence and B2B entity enrichment.

Joao Paulo

China LEI Entity Change Monitor

zinin/china-lei-entity-change-monitor

Monitor official GLEIF LEI records for entity, registration and parent-relationship changes in mainland China and Hong Kong.

Tim Zinin

Global Company Lookup — GLEIF LEI Data

ponderable_hydrometer/global-company-lookup

Look up legal entities worldwide from the GLEIF LEI database. Search by company name or LEI code and get legal name, registered address, jurisdiction, registration number, legal form, status, parent company and BIC. Keyless, structured, joinable.

Ponderable Hydrometer

GLEIF LEI Scraper

crawlerbros/gleif-lei-scraper

Search 2M+ legal entities from the Global LEI (Legal Entity Identifier) database by GLEIF. Free, no auth required. Get entity name, jurisdiction, address, registration status, and more.

Crawler Bros

GLEIF LEI Search — Legal Entity Identifier

adobeflex/gleif-lei-lite

Search LEI records via GLEIF API: legal name, jurisdiction, status. Entity KYC enrichment.

Yahor

GLEIF LEI Scraper

parseforge/gleif-lei-scraper

Scrapes the GLEIF Global LEI Index by company name or LEI code and returns each legal entity as a flat row with address, parent relationships, and registration status.