OpenSky Network

Open-source flight tracking network with a REST API for accessing real-time and historical ADS-B aircraft state vectors, flight tracks, and airport arrivals and departures. The network is powered by a community of volunteer ADS-B receiver operators and is intended for non-commercial research and educational use.

OpenSky Network publishes 3 APIs on the APIs.io network: Flights API, State Vectors API, and Tracks API. Tagged areas include Aviation, Flight Tracking, ADS-B, Aircraft, and Airport.

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

OpenSky Network’s developer surface includes authentication, GitHub presence, documentation, status page, and 10 more developer resources.

🌐 Visit website 📡 Source on GitHub

49.0/100 developing ▬ flat Agent 41/100 agent ready Full breakdown ↓
scored 2026-07-28 · rubric v0.6

AccessFreemiumSelf serve⚡ Free to try

4 APIs

AviationFlight TrackingADS-BAircraftAirportReal-TimeHistorical Data

Kin Score

Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6

Composite quality — 49.0/100 · developing

Contract Quality 17.3 / 25

Developer Ergonomics 3.9 / 20

Commercial Clarity 12.6 / 20

Operational Transparency 0.7 / 13

Governance 7.0 / 12

Discoverability 7.4 / 10

Agent readiness — 41/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 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 0 / 4

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/opensky: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 4

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

Rate Limits 2

Documented rate limits and quota policies.

Opensky Rest Api

0 limits

RATE LIMITS

Opensky Trino Api

0 limits

RATE LIMITS

FinOps 1

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

JSON Schema 3

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

Examples 2

Example request and response payloads for these APIs.

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

Login

Register

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 2

SDKs, sample code, and the tooling you integrate with

GitHub

GitHub

GitHubRepository

GitHubRepository

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 3

Status, limits, changes, and where to get help

Status

Status

Contact

Contact

Forums

Forums

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

FinOps

FinOps

Company 1

The organization behind the API

Twitter

Twitter

Source (apis.yml)

name: OpenSky Network
description: Open-source flight tracking network with a REST API for accessing real-time and historical ADS-B aircraft state
  vectors, flight tracks, and airport arrivals and departures. The network is powered by a community of volunteer ADS-B receiver
  operators and is intended for non-commercial research and educational use.
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/opensky.png
url: https://raw.githubusercontent.com/api-evangelist/opensky/refs/heads/main/apis.yml
created: '2026-06-13'
modified: '2026-06-13'
specificationVersion: '0.19'
tags:
- Aviation
- Flight Tracking
- ADS-B
- Aircraft
- Airport
- Real-Time
- Historical Data
apis:
- name: OpenSky Network Trino Historical Data API
  description: SQL query interface powered by Trino for accessing the full OpenSky historical dataset including state vectors,
    raw Mode S messages, ADS-C and MLAT data, and flight records. Available to university-affiliated researchers, governmental
    organisations, and aviation authorities.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://openskynetwork.github.io/opensky-api/trino.html
  baseURL: https://trino.opensky-network.org
  tags:
  - Historical Data
  - State Vectors
  - Mode S
  - ADS-C
  - MLAT
  - SQL
  properties:
  - type: Documentation
    url: https://openskynetwork.github.io/opensky-api/trino.html
  - type: RateLimits
    url: https://raw.githubusercontent.com/api-evangelist/opensky/refs/heads/main/rate-limits/opensky-trino-api.yml
  - type: Plans
    url: https://raw.githubusercontent.com/api-evangelist/opensky/refs/heads/main/plans/opensky-trino-api.yml
  contact:
  - FN: OpenSky Network
    email: contact@opensky-network.org
    url: https://opensky-network.org/about/contact
- aid: opensky:opensky-flights-api
  name: OpenSky Network Flights API
  description: Endpoints for retrieving flight records including arrivals, departures, and flights by aircraft.
  humanURL: https://openskynetwork.github.io/opensky-api/rest.html
  baseURL: https://opensky-network.org/api
  tags:
  - Flights
  properties:
  - type: OpenAPI
    url: openapi/opensky-flights-api-openapi.yml
  - type: Documentation
    url: https://openskynetwork.github.io/opensky-api/rest.html
  - type: Authentication
    url: https://openskynetwork.github.io/opensky-api/rest.html#authentication
  - type: RateLimits
    url: https://raw.githubusercontent.com/api-evangelist/opensky/refs/heads/main/rate-limits/opensky-rest-api.yml
  - type: Plans
    url: https://raw.githubusercontent.com/api-evangelist/opensky/refs/heads/main/plans/opensky-rest-api.yml
- aid: opensky:opensky-state-vectors-api
  name: OpenSky Network State Vectors API
  description: Endpoints for retrieving real-time and historical aircraft state vectors (position, velocity, altitude, etc.).
  humanURL: https://openskynetwork.github.io/opensky-api/rest.html
  baseURL: https://opensky-network.org/api
  tags:
  - State Vectors
  properties:
  - type: OpenAPI
    url: openapi/opensky-state-vectors-api-openapi.yml
  - type: Documentation
    url: https://openskynetwork.github.io/opensky-api/rest.html
  - type: Authentication
    url: https://openskynetwork.github.io/opensky-api/rest.html#authentication
  - type: RateLimits
    url: https://raw.githubusercontent.com/api-evangelist/opensky/refs/heads/main/rate-limits/opensky-rest-api.yml
  - type: Plans
    url: https://raw.githubusercontent.com/api-evangelist/opensky/refs/heads/main/plans/opensky-rest-api.yml
- aid: opensky:opensky-tracks-api
  name: OpenSky Network Tracks API
  description: Endpoints for retrieving aircraft trajectory tracks with detailed waypoint data.
  humanURL: https://openskynetwork.github.io/opensky-api/rest.html
  baseURL: https://opensky-network.org/api
  tags:
  - Tracks
  properties:
  - type: OpenAPI
    url: openapi/opensky-tracks-api-openapi.yml
  - type: Documentation
    url: https://openskynetwork.github.io/opensky-api/rest.html
  - type: Authentication
    url: https://openskynetwork.github.io/opensky-api/rest.html#authentication
  - type: RateLimits
    url: https://raw.githubusercontent.com/api-evangelist/opensky/refs/heads/main/rate-limits/opensky-rest-api.yml
  - type: Plans
    url: https://raw.githubusercontent.com/api-evangelist/opensky/refs/heads/main/plans/opensky-rest-api.yml
common:
- type: AgenticAccess
  url: agentic-access/opensky-agentic-access.yml
- type: DomainSecurity
  url: security/opensky-domain-security.yml
- type: Authentication
  url: authentication/opensky-authentication.yml
- type: GitHub
  url: https://github.com/openskynetwork
- type: GitHubRepository
  url: https://github.com/openskynetwork/opensky-api
- type: Documentation
  url: https://openskynetwork.github.io/opensky-api/
- type: TermsOfService
  url: https://opensky-network.org/about/terms-of-use
- type: Status
  url: https://opensky-network.org/network/status
- type: Login
  url: https://opensky-network.org/login
- type: Register
  url: https://opensky-network.org/register
- type: FinOps
  url: https://raw.githubusercontent.com/api-evangelist/opensky/refs/heads/main/finops/opensky.yml
- type: Contact
  url: https://opensky-network.org/about/contact
- type: Forums
  url: https://community.opensky-network.org
- type: Twitter
  url: https://twitter.com/openskynetwork
maintainers:
- FN: API Evangelist
  url: https://apievangelist.com
  email: kin@apievangelist.com