API Agent vs. Postman vs. Stoplight vs. create-api.dev Comparison Chart

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.

Create-API.dev is an AI-powered OpenAPI specification builder by Kong that lets you generate high-quality API specs in seconds through a simple chat interface. By messaging the service, you provide your desired endpoints or rough outline, and an underlying Google LLM crafts complete, standards-compliant OpenAPI definitions that are ready to share, test, and ship. As a lightweight, web-based tool, it requires no installation. The generated specs can be exported in standard YAML or JSON formats for seamless integration with your existing API gateways and documentation pipelines. Create-API.dev operates under Google’s Generative AI Prohibited Use Policy and advises discretion before relying on or publishing any AI-generated content.