Decoy - Local HTTP Mocks
Mock APIs, Test Webhook Calls
Only for Mac
$24.99
Mac
Now with parameterized paths, response snapshots, and custom domains. The fastest way to mock APIs on your Mac
Testing webhooks and API integrations shouldn't require Docker, cloud tunnels, or YAML files. Decoy is a native Mac app that lets you create mock HTTP endpoints in seconds.
Create dummy endpoints to:
- Quickly mock external services, fully locally
- Test your application's webhook calls
- Simulate failures in external integrations
- Serve dummy websites to test your scraper
- Serve files for testing downloads
Handy features:
- Wildcard endpoints such as /users/:id to handle flexible urls
- Multiple HTTP methods per path POST, PATCH, DELETE, etc
- HTTP redirect headers supported
- Loading responses from files
- Formatting of imported code
- Import/export settings to share with teammates
- Subdomain support to mock services
- Snapshot responses and easily switch between versions
Built fully natively in Swift for that sweet sweet native performance.
Download now and start mocking those API calls
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Fixed double dropdown arrows appearing next to the endpoint address.
The developer, Achilleas Buisman, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
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Information
- Seller
- Achilleas Buisman
- Size
- 4.3 MB
- Category
- Developer Tools
- Compatibility
Requires macOS 14.0 or later.
- Mac
Requires macOS 14.0 or later.
- Mac
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Achilleas Buisman
