ReqRes - A hosted REST-API ready to respond to your AJAX requests.
Documentator - We make documenting your product a piece of cake 📘
JSON Placeholder - JSON Placeholder is a modern platform that provides you online REST API, which you can instantly use whenever you need any fake data.
UnMarkDocs - Unleash the Power of Markdown to Write Better Product Documentation
JsonAPI - Application and Data, Languages & Frameworks, and Query Languages
Archbee.io - Archbee is a developer-focused product docs tool for your team. Build beautiful product documentation sites or internal wikis/knowledge bases to get your team and product knowledge in one place.