Browse by what an API does.
Every public API is tagged with a primary category from its OpenAPI metadata or our curation. Use this index to drill into a domain — cloud, financial, security, anime — without using the search page.
Developer Tools
69Cloud infrastructure
60APIs from major cloud platforms — compute, storage, databases, networking, and managed services that power most production stacks.
Analytics
45Financial services
30APIs for payments, banking data, market quotes, and forex — the building blocks of fintech apps and embedded finance.
Animals
26Pet adoption, wildlife data, and animal facts/photos.
Anime
19Anime and manga databases, recommendations, and trackers.
Media & entertainment
19APIs serving music, video, podcasts, and entertainment metadata.
Payment
14Telecom
12Location
9Entertainment
8Anti-malware
5APIs for malware detection, URL reputation, and phishing checks.
Collaboration
5Security & identity
4APIs for authentication, threat intelligence, malware analysis, URL reputation, and credential management.
Social
4APIs for social networks, communities, and content platforms.
Text & language
3APIs for translation, language detection, NLP, and text analysis.
E-commerce
2APIs for storefronts, catalogs, orders, inventory, and marketplace integration.
Hosting
2Machine Learning
2Open Data
2Backend
1APIs for transactional and marketing email — sending, deliverability tracking, and inbox processing.
Forms
1Marketing
1Tools
1Transport & mobility
1APIs for transit data, mapping, geocoding, and logistics.