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Mockbin vs MockAPI: catalog facts
Mockbin	MockAPI
Free Free and open source, with no sign-up.	Freemium Plan details are not described on the fetched page; check the site for current limits.
Web	Web
Custom status, headers and body for a mock endpoint Generates mocks from an OpenAPI 3.x document	Builds mock REST endpoints without writing a server Generates custom fake data
Fixed responses rather than programmable logic Losing browser storage loses the list of your bins	Meant for prototyping and testing, not production use Hosted only, so it needs an internet connection
Web application	Web application, Hosted service
Open source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is needed
Needs internet	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.