# StubEngine (ChatGPT App)

> Launch live API mocks

- Type: app
- Publisher: StubEngine (official)
- Categories: Development
- Website: https://chatgpt.com/plugins/plugin_asdk_app_6a5706d1237c81918237887fc58c80fe
- Open in ChatGPT: https://chatgpt.com/plugins/plugin_asdk_app_6a5706d1237c81918237887fc58c80fe
- Version: 1.0.0
- Listed: 2026-10-04

## About

StubEngine helps companies speed up API delivery by turning plain-English requirements into live API mocks. Users can generate valid mock APIs and manage everything in a shared business workspace.
Whether you need a single mocked endpoint or a full API project with related endpoints, StubEngine makes it faster to prototype, test and ship integrations.
By reducing manual setup and accelerating mock creation, teams can move from idea to working API simulation in minutes.

## How to use

1. **Add it in ChatGPT** Open StubEngine in ChatGPT's Plugin directory (button above), select + to add it and sign in if asked.

2. **Use it in a chat** Type @ in the composer and pick StubEngine, or start your message with its name. ChatGPT may also suggest it when it fits what you ask.

## Skills

- **Create API Mock**: Turn natural language into live mock endpoints.
- **Manage API Mocks**: List and clean up your live mocks.

## Example prompts

- "Create a GET endpoint /api/v1/status. It should return a 200 OK status and a JSON body containing {"status": "healthy"}"
- "Create a POST mock payments charge that returns a 402 error."

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Source: https://chatgptplugins.directory/apps/stubengine · Index: https://chatgptplugins.directory/llms.txt · Independent and community-run. Not affiliated with or endorsed by OpenAI. ChatGPT is a trademark of OpenAI.