The OpenSky Network API offers free access to real-time historical and present Automatic Dependent Surveillance-Broadcast (ADS-B) aviation data, collected from a network of sensors located around the globe. This well-documented API provides developers with the means to track the movements of flights, allowing for the extraction of detailed data such as velocity, position, and altitude of aircraft. Highly accessible, it requires no login or authentication, making it a unique resource for aviation enthusiasts, app developers, researchers, or any businesses looking to incorporate global flight tracking data into their services.

This API also boasts an array of additional features that distinguish it as a powerful tool for anyone seeking to utilise ADS-B data. The comprehensive documentation is open to the public and covers everything from initial setup to advanced queries making it easy to use even for the novice. All data amassed are open and unfiltered, offering transparency and accuracy. Designed for high performance, the API delivers data in real-time and offers consistent delivery speeds, even under high load conditions. Furthermore, the data are sourced from a global network, ensuring global coverage.

Benefits of using this API include:

• Free, no-cost access to a vast ADS-B data repository
• No need for login or authentication
• Comprehensive, user-friendly documentation
• High delivery speeds and consistency for real-time data
• Access to open, unfiltered data from a global network

Here is a JavaScript code example for calling OpenSky Network API:

// Using fetch API
fetch('https://opensky-network.org/api/states/all')
.then(response => response.json())
.then(data => console.log(data))
.catch(error => console.log('There seems to be an error:', error))