GLEIF

The Global Legal Entity Identifier Foundation (GLEIF) provides a free, open REST API that gives developers access to the full LEI Data search engine functionality. The API supports filters, full-text and single-field searches of legal entity and ownership data, and fuzzy matching of relevant data fields such as entity names and addresses. In addition to LEI reference data, the API exposes reference data for LEI issuers, code lists, and mapped identifiers including BIC and ISIN codes. The API requires no authentication or registration, making LEI data freely accessible to any interested party for searching, validating, and retrieving legal entity identifiers and associated organizational reference data.

GLEIF publishes 5 APIs on the APIs.io network, including Corporate Relationships API, LEI Issuers API, LEI Records API, and 2 more. Tagged areas include Legal Entity Identifier, LEI, vLEI, Financial Data, and Corporate Identity.

The GLEIF catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

GLEIF’s developer surface includes documentation, engineering blog, pricing, and 12 more developer resources.

🌐 Visit website 📡 Source on GitHub

41.8/100 developing ▬ flat Agent 30/100 agent ready saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessFreeOpen⚡ Free to try

1 APIs

Legal Entity IdentifierLEIvLEIFinancial DataCorporate IdentityEntity Verification Reference Data Open Data

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 41.8/100 · developing

Contract Quality 13.9 / 21

Developer Ergonomics 2.0 / 17

Access Clarity 6.7 / 17

Operational Transparency 4.7 / 11

Contract Governance 2.6 / 10

Discoverability 5.8 / 9

Regulatory Posture 3.1 / 15

Agent readiness — 30/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 9 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 4 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Regulatory Posture applies to this provider. Its tags matched the Government & Public Sector regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics does not apply to this provider. The published contracts declare no write operations, and a read-only API cannot create-or-update. The facet is excluded from this provider's denominator entirely — not scored zero. A reference or data API is not deficient for being unable to upsert.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/gleif: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 5

Individual APIs this provider publishes, each with its own machine-readable definition.

GLEIF Corporate Relationships API

Corporate ownership and relationship hierarchy data

GLEIF LEI Issuers API

Operations on accredited LEI Issuers (Local Operating Units)

GLEIF LEI Records API

Operations on Legal Entity Identifier records

GLEIF Reference Data API

Reference data including entity legal forms and registration authorities

GLEIF Search API

Search and autocomplete operations

Open Collections 6

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Collection

OPEN COLLECTION

GLEIF LEI Corporate Relationships API

OPEN COLLECTION

GLEIF LEI Corporate Relationships LEI Issuers API

OPEN COLLECTION

GLEIF LEI Corporate Relationships LEI Records API

OPEN COLLECTION

GLEIF LEI Corporate Relationships Reference Data API

OPEN COLLECTION

GLEIF LEI Corporate Relationships Search API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Gleif Plans Pricing

1 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Gleif Rate Limits

2 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Gleif Finops

FINOPS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Gleif Context

0 classes · 50 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

GLEIF API Rules

6 rules · 4 warnings 2 info

SPECTRAL

JSON Schema 1

Standalone JSON Schema definitions for this provider's data models.

GLEIF LEI Record

5 properties

JSON SCHEMA

Examples 2

Example request and response payloads for these APIs.

Gleif Lei Record Example

2 fields

EXAMPLE

Gleif Lei Records List Example

3 fields

EXAMPLE

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Gleif Domain Security

TLSv1.3 · HSTS · DNSSEC

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Gleif Agentic Access

16 operations

16 operations · 0 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

Vocabulary

Vocabulary

JSONLDContext

JSONLDContext

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrg

GitHubOrg

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

StatusPage

StatusPage

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

Website

Website

LinkedIn

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Source (apis.yml)

aid: gleif
name: GLEIF
description: 'The Global Legal Entity Identifier Foundation (GLEIF) provides a free, open REST API that gives developers access
  to the full LEI Data search engine functionality. The API supports filters, full-text and single-field searches of legal
  entity and ownership data, and fuzzy matching of relevant data fields such as entity names and addresses. In addition to
  LEI reference data, the API exposes reference data for LEI issuers, code lists, and mapped identifiers including BIC and
  ISIN codes. The API requires no authentication or registration, making LEI data freely accessible to any interested party
  for searching, validating, and retrieving legal entity identifiers and associated organizational reference data.

  '
type: Index
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: free
  onboarding: open
  trial: false
  try_now: true
  public: true
  label: Free · Open access
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/gleif.png
url: https://raw.githubusercontent.com/api-evangelist/gleif/refs/heads/main/apis.yml
created: '2026-06-12'
modified: '2026-06-12'
specificationVersion: '0.23'
tags:
- Legal Entity Identifier
- LEI
- vLEI
- Financial Data
- Corporate Identity
- Entity Verification
- Reference Data
- Open Data
apis:
- aid: gleif:gleif-corporate-relationships-api
  name: GLEIF Corporate Relationships API
  description: Corporate ownership and relationship hierarchy data
  humanURL: https://www.gleif.org/en/lei-data/gleif-api
  baseURL: https://api.gleif.org/api/v1
  tags:
  - Corporate Relationships
  properties:
  - type: OpenAPI
    url: openapi/gleif-corporate-relationships-api-openapi.yml
  - type: Documentation
    url: https://www.gleif.org/en/lei-data/gleif-api
  - type: PostmanDocumentation
    url: https://documenter.getpostman.com/view/7679680/SVYrrxuU
  - type: JSONSchema
    url: json-schema/gleif-lei-record-schema.json
  - type: Examples
    url: examples/gleif-lei-record-example.json
  - type: Examples
    url: examples/gleif-lei-records-list-example.json
- aid: gleif:gleif-lei-issuers-api
  name: GLEIF LEI Issuers API
  description: Operations on accredited LEI Issuers (Local Operating Units)
  humanURL: https://www.gleif.org/en/lei-data/gleif-api
  baseURL: https://api.gleif.org/api/v1
  tags:
  - LEI Issuers
  properties:
  - type: OpenAPI
    url: openapi/gleif-lei-issuers-api-openapi.yml
  - type: Documentation
    url: https://www.gleif.org/en/lei-data/gleif-api
  - type: PostmanDocumentation
    url: https://documenter.getpostman.com/view/7679680/SVYrrxuU
  - type: JSONSchema
    url: json-schema/gleif-lei-record-schema.json
  - type: Examples
    url: examples/gleif-lei-record-example.json
  - type: Examples
    url: examples/gleif-lei-records-list-example.json
- aid: gleif:gleif-lei-records-api
  name: GLEIF LEI Records API
  description: Operations on Legal Entity Identifier records
  humanURL: https://www.gleif.org/en/lei-data/gleif-api
  baseURL: https://api.gleif.org/api/v1
  tags:
  - LEI Records
  properties:
  - type: OpenAPI
    url: openapi/gleif-lei-records-api-openapi.yml
  - type: Documentation
    url: https://www.gleif.org/en/lei-data/gleif-api
  - type: PostmanDocumentation
    url: https://documenter.getpostman.com/view/7679680/SVYrrxuU
  - type: JSONSchema
    url: json-schema/gleif-lei-record-schema.json
  - type: Examples
    url: examples/gleif-lei-record-example.json
  - type: Examples
    url: examples/gleif-lei-records-list-example.json
- aid: gleif:gleif-reference-data-api
  name: GLEIF Reference Data API
  description: Reference data including entity legal forms and registration authorities
  humanURL: https://www.gleif.org/en/lei-data/gleif-api
  baseURL: https://api.gleif.org/api/v1
  tags:
  - Reference Data
  properties:
  - type: OpenAPI
    url: openapi/gleif-reference-data-api-openapi.yml
  - type: Documentation
    url: https://www.gleif.org/en/lei-data/gleif-api
  - type: PostmanDocumentation
    url: https://documenter.getpostman.com/view/7679680/SVYrrxuU
  - type: JSONSchema
    url: json-schema/gleif-lei-record-schema.json
  - type: Examples
    url: examples/gleif-lei-record-example.json
  - type: Examples
    url: examples/gleif-lei-records-list-example.json
- aid: gleif:gleif-search-api
  name: GLEIF Search API
  description: Search and autocomplete operations
  humanURL: https://www.gleif.org/en/lei-data/gleif-api
  baseURL: https://api.gleif.org/api/v1
  tags:
  - Search
  properties:
  - type: OpenAPI
    url: openapi/gleif-search-api-openapi.yml
  - type: Documentation
    url: https://www.gleif.org/en/lei-data/gleif-api
  - type: PostmanDocumentation
    url: https://documenter.getpostman.com/view/7679680/SVYrrxuU
  - type: JSONSchema
    url: json-schema/gleif-lei-record-schema.json
  - type: Examples
    url: examples/gleif-lei-record-example.json
  - type: Examples
    url: examples/gleif-lei-records-list-example.json
common:
- type: AgenticAccess
  url: agentic-access/gleif-agentic-access.yml
- type: DomainSecurity
  url: security/gleif-domain-security.yml
- type: Website
  url: https://www.gleif.org
- type: Documentation
  url: https://www.gleif.org/en/lei-data/gleif-api
- type: GitHubOrg
  url: https://github.com/GLEIF-IT
- type: LinkedIn
  url: https://www.linkedin.com/company/global-legal-entity-identifier-foundation-gleif-
- type: Blog
  url: https://www.gleif.org/en/newsroom/blog
- type: Pricing
  url: https://www.gleif.org/en/lei-data/access-and-use-lei-data
- type: StatusPage
  url: https://www.gleif.org/en/about/gleif-services/daily-service-availability
- type: X
  url: https://twitter.com/gleif
- type: Plans
  url: plans/gleif-plans-pricing.yml
- type: RateLimits
  url: rate-limits/gleif-rate-limits.yml
- type: FinOps
  url: finops/gleif-finops.yml
- type: Vocabulary
  url: vocabulary/gleif-vocabulary.yml
- type: JSONLDContext
  url: json-ld/gleif-context.jsonld
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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