# OpenSky Network API

Category: [Transport](https://free-web-services.com/web-services/open-data/transport/)  
Page: https://free-web-services.com/web-services/open-data/transport/opensky-network-api.html  
Documentation: https://openskynetwork.github.io/opensky-api/rest.html

The OpenSky Network API gives live positions of aircraft from a worldwide network of ADS-B receivers: call sign, position, altitude, speed and heading, optionally within a bounding box, for example to show the planes above a city. Responses are JSON. Free; anonymous users get 400 credits a day and the latest positions only, and a free account gives 4,000 credits a day and the last hour.

- API key: Not needed
- Pricing: Free; anonymous users get 400 credits a day and the latest positions only, and a free account gives 4,000 credits a day and the last hour.
- From the browser: No, call it from a server
- Formats: JSON
- Interface: REST, HTTP-GET
- Provider: openskynetwork.github.io
- Last checked: Working on November 7th, 2026

Example request:

```sh
curl 'https://opensky-network.org/api/states/all?lamin=51.3&lomin=-0.5&lamax=51.7&lomax=0.3'
```

Run the JavaScript on a server, such as Node.js 18 or newer: this API does not accept calls from web pages on other sites.