API Fast Mock

API Fast Mock

Stateless API mocks in seconds, powered by tokens.

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Create statelesInstantly create stateless API mocks using compact tokens. No setup, no databases. Perfect for rapid prototyping, testing, and sharing with your team.s API mocks instantly using compact tokens. Perfect for rapid prototyping and testing.
API Fast Mock gallery image
API Fast Mock gallery image
API Fast Mock gallery image
Free
Launch tags:Productivity•API•Developer Tools
Launch Team
Flowstep
Flowstep
Generate real UI in seconds
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What do you think? …

Bruno Kawakami
Maker
đź“Ś
I built API Fast Mock because I was tired of the complexity in most mock tools—databases, dashboards, heavy configs. This project is 100% stateless: the entire mock is encoded in a compact token, making it portable, shareable, and effortless to use. What makes it unique is its simplicity: no accounts, no persistence layer, just copy the link and your mock is live. Yet it still supports advanced scenarios—conditional responses, sequences, latency simulation, webhooks, API key protection. I’m most proud that it combines zero setup with powerful flexibility. It’s the fastest way I know to spin up a mock for demos, prototyping, or QA.