Web Scraping API with built-in proxies and JS rendering.

Images.

File Sharing and Storage for Free with 1TB Space.

IP/domain/URL reputation.

Weather.

Weather API with other stuff like Astronomy and Geolocation API.

A RESTful free API to check the weather.

Natural language processing for advanced text analysis.

API for finding out the streaming availability of movies & shows.

Provide simple and reliable API access to Ethereum blockchain.

APIs for authorization and access control.

Wargaming.net info and stats.

Code compiler supporting 35+ languages mentioned at wandbox.org.

WallstreetBets Stock Comments Sentiment Analysis.

Wallpapers.

Automated time tracking leaderboards for programmers.

Image sharing platform for anime images.

Get waifu pictures from an archive of over 4000 images and multiple tags.

VulDB API allows to initiate queries for one or more items along with transactional bots.

Read and write vk data.

Global historical and weather forecast data.

VirusTotal File/URL Analysis.

Vimeo Developer API.

Brazil RESTful zip codes API.

Phone number validation & carrier lookup.

Verifies that a given email is real.

Velib Open Data API.

Free vector file converting API.

Exchange rates, geolocation and VAT number validation.

Cryptocurrency Exchange based in South Africa.