Stateful Mock API Server

Build Mocks that behave like the real thing,
share with a single URL

Resources created with POST can be retrieved with GET. Return 500 on the 3rd request. Return 401 without Authorization header. Build such Mocks in minutes and share them with your team by just passing the URL.

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Try live, published Mocks right now — no signup required.

What you can do with ScenarioMock

Achieve "real-world behavior" that was difficult with existing mock tools — all with just a GUI.

Stateful Mock

Resources created with POST /users can be retrieved with GET /users/:id. DELETE returns 404. Reproduce the same behavior as real APIs.

Unique feature

Scenario Engine

Set dynamic behaviors like "500 on 3rd call", "401 without Authorization header", or "delay only when a specific header is set" — no code required.

Sequence / Conditional

Shared URL

Just share the URL to let anyone view the endpoint list and send requests directly in the browser. No auth needed to view or test.

View & test without auth

Get started in 4 steps

Create a project

Just choose a slug and your Mock URL is ready.

Configure endpoints & scenarios

Set up responses and scenarios with a browser GUI.

Hit the Mock

The Mock starts immediately. Test with curl or a browser.

Share the URL

Make it public and share the URL — your team can start using it instantly.

Works great together

Test from Your Android Device

ScenarioMock builds the mock server. This app fires the requests — the perfect pair for mobile API development.

GET / POST / PUT / PATCH / DELETE support
Formatted JSON response viewer
Custom headers & request body

Get it on Google Play

API Tester – REST & JSON Client

Android

A full-featured HTTP client for Android. Send requests to your ScenarioMock endpoints, inspect formatted responses, and validate your scenarios — all from your phone.

GEThttps://my-api.scenariomock.com/users/1

200 OK { "id": 1, "name": "Yoshi" }

Simple, transparent pricing

Start free, upgrade when you need more.

Free

$0/ month