- Overview - https://developer.spotify.com/web-api/
- Register an app - https://developer.spotify.com/my-applications
- Console for quick testing - https://developer.spotify.com/web-api/console/
- List of the wrappers in various languages - https://developer.spotify.com/web-api/code-examples/#libraries
- Authentication and Authorization Guide - https://developer.spotify.com/web-api/authorization-guide/
- Main page - http://developer.echonest.com
- Overview - https://developer.spotify.com/spotify-echo-nest-api/
- Register API key - https://developer.echonest.com/account/register
- Documentation - http://developer.echonest.com/docs/v4
- Wrappers and clients - https://github.com/echonest
- Remix API - https://echonest.github.io/remix/
- Overview - https://developer.spotify.com/technologies/spotify-ios-sdk/
- Download the binary - https://github.com/spotify/ios-sdk/releases
- API reference - https://developer.spotify.com/ios-sdk-docs/Documents/
- Web API Wrappers - available in the bundle
- Overview - https://developer.spotify.com/technologies/spotify-android-sdk/
- Download the binary - https://github.com/spotify/android-sdk/releases
- API reference - https://developer.spotify.com/technologies/spotify-android-sdk/android-sdk-api-reference/
- Web API Wrappers - https://github.com/kaaes/spotify-web-api-android
- Spotify on IFTTT - https://ifttt.com/p/spotify/
- Every Noise at Once - http://everynoise.com/
- Spotify Insights - https://insights.spotify.com/