ICAO

The International Civil Aviation Organization (ICAO) is a specialized agency of the United Nations that codifies the principles and techniques of international air navigation and fosters the planning and development of international air transport. ICAO's API Data Service provides 50+ continuously updated APIs covering states, airports, operators, airspace, occurrences, and aircraft, including official reference datasets such as DOC7910 location indicators, DOC8585 operator three-letter codes, and DOC8643 aircraft type designators.

ICAO publishes 13 API contracts indexed on the APIs.io network, including GEO API, ICAO API, Infomation API, and 10 more. Tagged areas include Airlines, Airports, Airspace, Aviation, and Reference Data.

The ICAO catalog on APIs.io includes 1 Spectral governance ruleset.

ICAO’s developer surface includes authentication, engineering blog, developer portal, documentation, support, and 17 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

36.2/100 thin ▲ 19.2 Agent 25/100 agent aware Front door AI 1/6 silent saas Full breakdown ↓
scored 2026-10-23 · rubric v0.25.0 · Show this score on your site →

AccessFreemium

2 published contracts

Airlines Airports Airspace Aviation Reference Data Standards United Nations

Kin Score

Kin Score How this is scored →
scored 2026-10-23 · rubric v0.25.0

Composite quality — 36.2/100 · thin

Contract Quality 8.5 / 21

Developer Ergonomics 6.8 / 17

Access Clarity 5.4 / 17

Operational Transparency 2.3 / 11

Contract Governance 2.2 / 10

Discoverability 4.9 / 9

Regulatory Posture 3.1 / 15

Agent readiness — 25/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 4 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) 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 could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

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/.

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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/icao: 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 13

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

ICAO States API

Endpoints providing reference and statistical data on ICAO Member States, including state-level aviation activity, agreements, and contracting state metadata.

ICAO Airports API

Endpoints exposing ICAO airport reference data including DOC7910 location indicators, airport metadata, and related aerodrome information.

ICAO Operators API

Endpoints providing operator reference data including DOC8585 three-letter operator designators, telephony, and operator details for airlines and aircraft operators.

ICAO Airspace API

Endpoints providing airspace, navigation, and route data including flight information regions and airspace structures relevant to international air navigation.

ICAO Occurrences API

Endpoints providing access to aviation safety occurrence data, including accident and incident records reported through ICAO's safety information systems.

ICAO Aircraft API

Endpoints providing aircraft reference data including DOC8643 aircraft type designators, manufacturer information, and aircraft performance categories.

ICAO Store GraphQL API

The GraphQL API behind the ICAO Store (store.icao.int), where ICAO sells publications and API Data Service plans and booster packs. Anonymous introspection is open and returns a...

ICAO GEO API

The GEO API from ICAO — 1 operation(s) for geo.

ICAO ICAO API

The ICAO API from ICAO — 8 operation(s) for icao.

ICAO Infomation API

The Infomation API from ICAO — 3 operation(s) for infomation.

ICAO Publication API

The Publication API from ICAO — 4 operation(s) for publication.

ICAO Safety API

The Safety API from ICAO — 2 operation(s) for safety.

ICAO USOAP API

The USOAP API from ICAO — 3 operation(s) for usoap.

Scroll for all 13

Pricing Plans 1

Published pricing tiers and plan structures.

Icao Plans Pricing

2 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Icao Rate Limits

1 limits

RATE LIMITS

FinOps 1

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

Icao Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

ICAO API Rules

9 rules · 7 errors 1 warnings 1 info

SPECTRAL

Security Posture 2

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

Icao Authentication

apiKey/http · 2 schemes

SECURITY

Icao Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

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

Icao Agentic Access

21 operations

21 operations · 0 acting

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

Portal

Portal

Portal

Portal

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

AgentSkill

AgentSkill

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

Spectral

Vocabulary

Conventions

Conformance

Build 1

SDKs, sample code, and the tooling you integrate with

Packages

Packages

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

RateLimits

RateLimits

Support

Support

Commercial 3

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

TermsOfService

TermsOfService

Company 3

The organization behind the API

Blog

Blog

LinkedIn

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: icao
name: ICAO
description: The International Civil Aviation Organization (ICAO) is a specialized agency of the United Nations that codifies
  the principles and techniques of international air navigation and fosters the planning and development of international
  air transport. ICAO's API Data Service provides 50+ continuously updated APIs covering states, airports, operators, airspace,
  occurrences, and aircraft, including official reference datasets such as DOC7910 location indicators, DOC8585 operator three-letter
  codes, and DOC8643 aircraft type designators.
type: Index
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/icao.png
tags:
- Airlines
- Airports
- Airspace
- Aviation
- Reference Data
- Standards
- United Nations
url: https://raw.githubusercontent.com/api-evangelist/icao/refs/heads/main/apis.yml
created: '2026-03-16'
modified: '2026-10-20'
specificationVersion: '0.23'
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
common:
- type: AgenticAccess
  url: agentic-access/icao-agentic-access.yml
- type: Spectral
  url: rules/icao-rules.yml
- type: Vocabulary
  url: vocabulary/icao-vocabulary.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Conventions
  url: conventions/icao-conventions.yml
- type: Conformance
  url: conformance/icao-conformance.yml
- type: Hosts
  url: hosts/icao-hosts.yml
- type: Vendors
  url: vendors/icao-vendors.yml
- type: Packages
  url: packages/icao-packages.yml
- type: Authentication
  url: authentication/icao-authentication.yml
- type: Plans
  url: plans/icao-plans-pricing.yml
- type: RateLimits
  url: rate-limits/icao-rate-limits.yml
- type: FinOps
  url: finops/icao-finops.yml
- url: https://www.icao.int/news
  type: Blog
- type: DomainSecurity
  url: security/icao-domain-security.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/icao
- type: Website
  url: https://www.icao.int/
- type: Portal
  url: https://applications.icao.int/dataservices/default.aspx
- type: Documentation
  url: https://www.icao.int/safety/iStars/Pages/API-Data-Service.aspx
- type: TermsOfService
  url: https://unitingaviation.com/wp-content/uploads/2021/09/User-Terms-and-Condtions-for-ICAO-API-Data-Service-APIs-LEB_FINAL_13.04.21.pdf
- type: Support
  url: https://www.icao.int/contact/
- type: Portal
  url: https://dataservices.icao.int/
apis:
- aid: icao:icao-states-api
  name: ICAO States API
  description: Endpoints providing reference and statistical data on ICAO Member States, including state-level aviation activity,
    agreements, and contracting state metadata.
  humanURL: https://applications.icao.int/dataservices/default.aspx
  tags:
  - States
  - Reference Data
  properties:
  - type: Documentation
    url: https://www.icao.int/safety/iStars/Pages/API-Data-Service.aspx
- aid: icao:icao-airports-api
  name: ICAO Airports API
  description: Endpoints exposing ICAO airport reference data including DOC7910 location indicators, airport metadata, and
    related aerodrome information.
  humanURL: https://applications.icao.int/dataservices/default.aspx
  tags:
  - Airports
  - DOC7910
  - Reference Data
  properties:
  - type: Documentation
    url: https://www.icao.int/safety/iStars/Pages/API-Data-Service.aspx
- aid: icao:icao-operators-api
  name: ICAO Operators API
  description: Endpoints providing operator reference data including DOC8585 three-letter operator designators, telephony,
    and operator details for airlines and aircraft operators.
  humanURL: https://applications.icao.int/dataservices/default.aspx
  tags:
  - DOC8585
  - Operator
  - Reference Data
  tags_raw:
  - DOC8585
  - Operators
  - Reference Data
  properties:
  - type: Documentation
    url: https://www.icao.int/safety/iStars/Pages/API-Data-Service.aspx
- aid: icao:icao-airspace-api
  name: ICAO Airspace API
  description: Endpoints providing airspace, navigation, and route data including flight information regions and airspace
    structures relevant to international air navigation.
  humanURL: https://applications.icao.int/dataservices/default.aspx
  tags:
  - Airspace
  - Navigation
  properties:
  - type: Documentation
    url: https://www.icao.int/safety/iStars/Pages/API-Data-Service.aspx
- aid: icao:icao-occurrences-api
  name: ICAO Occurrences API
  description: Endpoints providing access to aviation safety occurrence data, including accident and incident records reported
    through ICAO's safety information systems.
  humanURL: https://applications.icao.int/dataservices/default.aspx
  tags:
  - Accidents
  - Incidents
  - Safety
  properties:
  - type: Documentation
    url: https://www.icao.int/safety/iStars/Pages/API-Data-Service.aspx
- aid: icao:icao-aircraft-api
  name: ICAO Aircraft API
  description: Endpoints providing aircraft reference data including DOC8643 aircraft type designators, manufacturer information,
    and aircraft performance categories.
  humanURL: https://applications.icao.int/dataservices/default.aspx
  tags:
  - Aircraft
  - DOC8643
  - Reference Data
  properties:
  - type: Documentation
    url: https://www.icao.int/safety/iStars/Pages/API-Data-Service.aspx
- aid: icao:icao-store-graphql
  name: ICAO Store GraphQL API
  description: The GraphQL API behind the ICAO Store (store.icao.int), where ICAO sells publications and API Data Service
    plans and booster packs. Anonymous introspection is open and returns a Magento (Adobe Commerce) storefront schema with
    57 query fields and 166 mutations covering catalog, cart, checkout and customer accounts.
  humanURL: https://store.icao.int/
  baseURL: https://store.icao.int/graphql
  tags:
  - Commerce
  - GraphQL
  properties:
  - type: GraphQL
    url: graphql/icao-store-introspection.json
- aid: icao:icao-geo-api
  name: ICAO GEO API
  description: The GEO API from ICAO — 1 operation(s) for geo.
  humanURL: https://dataservices.icao.int/
  baseURL: https://dataservices.icao.int/api
  tags:
  - Geo
  tags_raw:
  - GEO
  properties:
  - type: OpenAPI
    url: openapi/icao-geo-api-openapi.yml
  - type: Documentation
    url: https://www.icao.int/safety/iStars/Pages/API-Data-Service.aspx
  - type: Portal
    url: https://applications.icao.int/dataservices/default.aspx
  - type: TermsOfService
    url: https://unitingaviation.com/wp-content/uploads/2021/09/User-Terms-and-Condtions-for-ICAO-API-Data-Service-APIs-LEB_FINAL_13.04.21.pdf
- aid: icao:icao-icao-api
  name: ICAO ICAO API
  description: The ICAO API from ICAO — 8 operation(s) for icao.
  humanURL: https://dataservices.icao.int/
  baseURL: https://dataservices.icao.int/api
  tags:
  - ICAO
  properties:
  - type: OpenAPI
    url: openapi/icao-icao-api-openapi.yml
  - type: Documentation
    url: https://www.icao.int/safety/iStars/Pages/API-Data-Service.aspx
  - type: Portal
    url: https://applications.icao.int/dataservices/default.aspx
  - type: TermsOfService
    url: https://unitingaviation.com/wp-content/uploads/2021/09/User-Terms-and-Condtions-for-ICAO-API-Data-Service-APIs-LEB_FINAL_13.04.21.pdf
- aid: icao:icao-infomation-api
  name: ICAO Infomation API
  description: The Infomation API from ICAO — 3 operation(s) for infomation.
  humanURL: https://dataservices.icao.int/
  baseURL: https://dataservices.icao.int/api
  tags:
  - Infomation
  properties:
  - type: OpenAPI
    url: openapi/icao-infomation-api-openapi.yml
  - type: Documentation
    url: https://www.icao.int/safety/iStars/Pages/API-Data-Service.aspx
  - type: Portal
    url: https://applications.icao.int/dataservices/default.aspx
  - type: TermsOfService
    url: https://unitingaviation.com/wp-content/uploads/2021/09/User-Terms-and-Condtions-for-ICAO-API-Data-Service-APIs-LEB_FINAL_13.04.21.pdf
- aid: icao:icao-publication-api
  name: ICAO Publication API
  description: The Publication API from ICAO — 4 operation(s) for publication.
  humanURL: https://dataservices.icao.int/
  baseURL: https://dataservices.icao.int/api
  tags:
  - Publication
  properties:
  - type: OpenAPI
    url: openapi/icao-publication-api-openapi.yml
  - type: Documentation
    url: https://www.icao.int/safety/iStars/Pages/API-Data-Service.aspx
  - type: Portal
    url: https://applications.icao.int/dataservices/default.aspx
  - type: TermsOfService
    url: https://unitingaviation.com/wp-content/uploads/2021/09/User-Terms-and-Condtions-for-ICAO-API-Data-Service-APIs-LEB_FINAL_13.04.21.pdf
- aid: icao:icao-safety-api
  name: ICAO Safety API
  description: The Safety API from ICAO — 2 operation(s) for safety.
  humanURL: https://dataservices.icao.int/
  baseURL: https://dataservices.icao.int/api
  tags:
  - Safety
  properties:
  - type: OpenAPI
    url: openapi/icao-safety-api-openapi.yml
  - type: Documentation
    url: https://www.icao.int/safety/iStars/Pages/API-Data-Service.aspx
  - type: Portal
    url: https://applications.icao.int/dataservices/default.aspx
  - type: TermsOfService
    url: https://unitingaviation.com/wp-content/uploads/2021/09/User-Terms-and-Condtions-for-ICAO-API-Data-Service-APIs-LEB_FINAL_13.04.21.pdf
- aid: icao:icao-usoap-api
  name: ICAO USOAP API
  description: The USOAP API from ICAO — 3 operation(s) for usoap.
  humanURL: https://dataservices.icao.int/
  baseURL: https://dataservices.icao.int/api
  tags:
  - USOAP
  properties:
  - type: OpenAPI
    url: openapi/icao-usoap-api-openapi.yml
  - type: Documentation
    url: https://www.icao.int/safety/iStars/Pages/API-Data-Service.aspx
  - type: Portal
    url: https://applications.icao.int/dataservices/default.aspx
  - type: TermsOfService
    url: https://unitingaviation.com/wp-content/uploads/2021/09/User-Terms-and-Condtions-for-ICAO-API-Data-Service-APIs-LEB_FINAL_13.04.21.pdf
x-enrichment:
  date: '2026-10-20'
  status: enriched
  artifacts_added: 12
  pass: local-v5

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