PublicAPI is a directory of free public APIs for software, mobile and web development use.

API Tracker monitors 5600+ APIs and SaaS products, tracking specs, developer experience, pricing, and documentation for developers.

Public APIs is a directory for developers providing access to 1400+ public APIs.

Unified APIs is a directory for unified API integration and discovery.

FutureAPIs is an API directory for developers and is used by tech professionals.

API Stack is an API directory for API discovery and integration.

API list is a collective list of free APIs for developers to build the next big thing.

API Setu is an API directory for accessing thousands of APIs from government and private sector.