How to use Mockoon with OpenAPI specs?

Mockoon allows importing OpenAPI specifications directly in the desktop app or CLI for easy mock setup. Export features also let you share your mocks as OpenAPI docs, with details in the online documentation.

Mockoon vs Postman for API mocking?

Mockoon specializes in local, no-account-required mocking with full control over routes, while Postman offers broader API testing and cloud collaboration. Mockoon is better for dedicated mock servers without external dependencies.

Can I deploy Mockoon to AWS Lambda?

Yes, Mockoon provides a serverless NPM package for running mock APIs in AWS Lambda and other cloud functions. Check the dedicated serverless documentation for setup instructions and examples.

How to record requests in Mockoon?

Mockoon logs all incoming and forwarded requests in the desktop app's interface or via CLI output, helping debug API interactions. Enable logging in the environment settings to capture request details.

Is Mockoon free for team collaboration?

The core desktop and CLI tools are open-source and free, but real-time collaboration and cloud sync require a paid Mockoon Cloud subscription, as noted in the support section.

Mockoon (.1k)

MITTypeScriptv9.6.1

The easiest and quickest way to design and run mock APIs locally, with desktop, CLI, and cloud options.

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8.2k stars460 forks0 contributors

What is Mockoon (.1k)?

Mockoon is an open-source API mocking tool that allows developers to design and run mock APIs locally without remote deployment or accounts. It solves the problem of dependency on external APIs by providing a controlled testing environment with predictable responses, status codes, and latencies. The tool includes a desktop application for local mock servers, a CLI for headless environments, and a cloud option for team collaboration.

Target Audience

Developers and teams building applications that integrate with third-party APIs, especially those needing to test API integrations, simulate edge cases, or onboard new team members with consistent environments.

Value Proposition

Developers choose Mockoon because it is the easiest and quickest way to set up mock APIs locally, with no account required and full control over route definitions. Its open-source nature, combined with desktop, CLI, and cloud options, offers flexibility for both individual and collaborative workflows.

Overview

Mockoon is the easiest and quickest way to run mock APIs locally. No remote deployment, no account required, open source.

Use Cases

Best For

Speeding up development by reducing dependency on external APIs

Related Projects

Community-curated · Updated weekly · 100% open source

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Testing applications in a controlled environment with predictable API responses

Simulating edge cases and error scenarios for third-party API integrations

Running mock APIs in CI/CD pipelines using the CLI

Onboarding new team members with consistent and reliable mock APIs

Designing and prototyping APIs locally before backend implementation

Not Ideal For

Projects requiring cloud-hosted mock APIs with high availability and no local setup
Teams needing real-time collaboration on mock APIs without paying for subscriptions
Simple one-off mocking tasks that can be handled with lightweight scripts or curl commands
Environments where serverless mocking must be deployed with zero configuration overhead

Pros & Cons

Pros

Local-First Ease of Use

No account or remote deployment required, enabling quick setup and local mock servers as highlighted in the README's philosophy.

Flexible Deployment Options

Offers a desktop app for GUI design, a CLI for headless environments like CI/CD, and serverless packages, providing versatility across development stages.

OpenAPI Compatibility

Supports importing and exporting OpenAPI specifications, allowing seamless integration with existing API design and documentation workflows.

Comprehensive Mocking Features

Includes JSON templating, request recording, HTTPS support, and proxy forwarding, enabling realistic and controlled testing scenarios.

Cons

Cloud Collaboration Behind Paywall

Advanced features like real-time team synchronization and cloud deployments require a Mockoon Cloud subscription, limiting free users to local-only work.

Desktop App Dependency for GUI

The full graphical interface is tied to the desktop application, which may not suit teams preferring web-based or code-centric workflows.

Setup Overhead for Advanced Use

Using the CLI or serverless packages involves npm installation and configuration, which can be more complex than simpler mocking tools or services.

Frequently Asked Questions

Home

Integration

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