Free and open source fake API for testing and prototyping Custom APIInstantly generate a custom API from a JSON object Rule EngineCreate rules to handle error cases and customize HTTP codes, headers, and bodies Free & Open sourceUse this tool for free; you can also retrieve the source code and set up a local installation
Trust signals
Pricing
FREE
Auth
NONE
CORS
No
Rate limit
Unknown
Health
772ms
Trust score
87 (B)
Last checked Oct 19, 2026 · uptime 24h 100% / 7d 100% / 30d 100%
Strong candidate; weakest signal is CORS.
Links
- Homepagejsoning.com/api
- Documentationjsoning.com/api
- Base URLjsoning.com/api/
Integration checklist
- Auth is NONE
- No CORS — route calls through your backend.
- Rate limit: Unknown