Best API Design Software for GitLab

Compare the Top API Design Software that integrates with GitLab as of July 2025

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This a list of API Design software that integrates with GitLab. Use the filters on the left to add additional filters for products that have integrations with GitLab. View the products that work with GitLab in the table below.

What is API Design Software for GitLab?

API design software helps developers design, document, and manage APIs (Application Programming Interfaces) in a structured and efficient manner. These tools provide a user-friendly interface for creating API specifications, defining endpoints, input/output data formats, authentication methods, and response formats. API design software typically supports the OpenAPI (formerly Swagger) specification or other industry-standard formats to ensure consistency and interoperability. Additionally, many API design tools allow for collaborative development, testing, and version control, making it easier to create robust, secure, and scalable APIs that are aligned with best practices. Compare and read user reviews of the best API Design software for GitLab currently available using the table below. This list is updated regularly.

1

Postman

Postman

The collaboration platform for API development. Simplify each step of building an API and streamline collaboration so you can create better APIs—faster. Postman is a collaboration platform for API development. Postman's features simplify each step of building an API and streamline collaboration so you can create better APIs—faster. Quickly and easily send REST, SOAP, and GraphQL requests directly within Postman. Automate manual tests and integrate them into your CI/CD pipeline to ensure that any code changes won't break the API in production. Communicate the expected behavior of an API by simulating endpoints and their responses without having to set up a backend server. Generate and publish beautiful, machine-readable documentation to make your API easier to consume. Stay up-to-date on the health of your API by checking performance and response times at scheduled intervals. Provide a shared context for building and consuming APIs, and collaborate in real-time.

25 Ratings

Starting Price: $12 per user per month

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2

Stoplight

Stoplight

Stoplight is an API Design, Development, and Documentation platform. Use Stoplight Platform to enable consistency, reusability, and quality in your API lifecycle, all with an easy, enjoyable developer experience. Here's what you can do with Stoplight Platform: - Design APIs with our easy visual designer, Stoplight Studio - Mock API designs automatically with Stoplight Prism mocking - Collaborate on your designs and invite internal and external users to provide feedback - Develop faster and better APIs - Test and enforce against style guides with Stoplight Spectral - Document both internal and external APIs automatically to create a delightful experience Utilize and integrate design-first workflows to quickly scale up standardized, collaborative, and well-governed API programs.

Starting Price: Free

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3

SwaggerHub

SmartBear

SwaggerHub is an integrated API design and documentation platform, built for teams to drive consistency and discipline across the API development workflow. Accelerate your team’s design process without any loss in quality or organizational style consistency with a powerful Editor that’s fully compliant with the latest Swagger (OpenAPI) standards. A Powerful Editor equipped with smart error feedback and syntax auto-completion. Style Validators for ensuring design consistency across multiple APIs. API Mocking to virtualize operations without any code. Domains for storing, reusing and referencing common OAS syntax across multiple APIs. Have your API design and development centralized on a single location, allowing your teams to seamlessly collaborate on new APIs, or discover existing APIs on a centralized platform. Coordinate your entire API lifecycle from a central internal repository, hosted on the cloud.

Starting Price: $90 per month

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4

Redocly

Redocly

Beautiful API documentation loved by teams and API consumers. At last, API documentation your whole team will be proud of. Publish beautiful API reference docs in seconds and style them in minutes. Tick every developer's favorite box right out of the box, three panels, a try-it console, generated code samples, SEO-friendly, even friendlier search. Nobody likes outdated docs and scope creep. Maintain API documentation with your favorite source control integrated with our cloud app workflows. We support them all, including on-premise and API management providers. Launch a developer portal in minutes reusing your API definitions as assets. Add tutorials, quick-start guides, and developer tooling with incredible customization. Validate, lint, and bundle multi-file API definitions. Write always on-spec OpenAPI documents. Plug in your API reference and customize every nook & cranny to wow your API consumers.

Starting Price: $69 per month

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