The Unsplash API - No-limits, do-what-you-want API for access to 200K+ HD pics.
PublicAPIs - Explore the largest API directory in the galaxy
API List - A collective list of APIs. Build something.
Outerbridge - Connect Web3 and Web2 API without code
Mocklets - A HTTP-based API simulator to assist parallel development 🛠️
Sections serverless engine - A high-performance serverless engine to accelerate any API