# ICAO

**Canonical:** https://apis.io/providers/icao/  
**Website:** https://www.icao.int/  
**APIs profiled:** 7

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.

## Kin Score — 19.2 / 100 (emerging)

Scored 2026-08-25 under rubric 0.14.0. Trend: flat (+0.0 from 19.2).

| Facet | Score |
|---|---|
| Discoverability | 64.8 |
| Contract Quality | 6.7 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 7.9 |
| Developer Ergonomics | 23.8 |
| Commercial Clarity | 26.3 |
| Access Clarity | 26.3 |

## Agent readiness — 3.8 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | documented |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |

## Access

Freemium — onboarding: unknown, pricing: freemium, trial: no (confidence: medium).

## APIs (7)

- **ICAO API Data Service** — The ICAO API Data Service provides programmatic access to authoritative civil aviation data published by ICAO, with continuously updated endpoints across six data areas. An API ...
- **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.

## Security (1)

- **Icao Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Icao Plans Pricing**

## Tags

Airlines, Airports, Airspace, Aviation, Reference Data, Standards, United Nations

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/icao/). Scores are computed from the provider's own public artifacts under a published rubric.