Certainly! Here are some of the most widely used APIs across different categories:
1. Weather Data: OpenWeatherMap API (https://openweathermap.org/api): Provides current weather conditions, forecasts, alerts, maps, etc.
2. Social Media:
    - Twitter API (https://dev.twitter.com/): Accesses Twitter data including tweets, users, Direct Messages, trends etc.
    - Facebook Graph API (https://developers.facebook.com/docs/graph-api/overview): Provides access to Facebook data including user profiles, photos, events, groups, pages etc. 
3. Music Services: SoundCloud API (https://developers.soundcloud.com/): Allows integration of SoundCloud features into applications including tracks, playlists, artists, comments, likes, follows etc.
4. Location Services:
    - Google Maps Platform Geolocation APIs (https://developers.google.com/maps/): Retrieves device specific information such as location, speed, accuracy etc.
    - Apple iOS Core Location Framework (https://developer.apple.com/documentation/corelocation): Enables development of location based apps on iPhones & iPads. This framework has classes for handling location data, geocoding, map rendering etc.
       
Please let me know if there is anything else I can help you with, I am here to serve.
spam fails_task lang_mismatch pii not_appropriate hate_speech sexual_content quality toxicity humor helpfulness creativity violence