OpenAPI Specification and Swagger

Swagger offers the easiest to use tools to take full advantage of all the capabilities of the OpenAPI Specification (OAS).

Add OAS to Your APIs Swagger Inspector lets you generate an OAS definition for any API in seconds Learn More Design APIs with OAS Design APIs in an editor with built-in validation for faster design with less errors Learn More Document APIs with OAS Create API docs that developers love to work with, right from your OAS definition Learn More Maintain OAS Definitions Use SwaggerHub to provide a central repository for all your API teams Learn More

What is the OpenAPI Specification?

The OpenAPI Specification, formerly known as the Swagger Specification, is the world’s standard for defining RESTful interfaces. The OAS enables developers to design a technology-agnostic API interface that forms the basis of their API development and consumption.

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What is the OpenAPI Specification
Standardize on OAS with SwaggerHub

SwaggerHub helps teams that need to set and enforce API style guidelines, and work better together. Take control of your API design process, and help your team deliver APIs that developers love to use with OAS & SwaggerHub.

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Standardize on OAS with SwaggerHub

Generating OAS From Code

How do you get the OpenAPI file from a fully developed API? With Swagger Inspector, you can auto-generate your definition from any API endpoint without any manual plumbing. The generation takes less than 3 clicks, and lets your development team take full advantage of a definition to generate further documentation and SDKs.

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Generating OAS From Code
OAS and Swagger

You can’t talk OAS without talking Swagger. The Swagger project from SmartBear was the original foundation of the OAS, consisting of the Swagger Specification and the Swagger tools. The Swagger Community is leading the charge on building tools to fully leverage the power of the OAS across the API lifecycle.

Swagger open source tools

OAS and Swagger

API Design Resources

Article Best Practices in API Design Good API design is a topic that comes up a lot for teams that are trying to perfect their API strategy. Webinar OpenAPI 3.0: How to Design and Document APIs with the Latest OpenAPI Specification OpenAPI 3.0, which is based on the original Swagger 2.0 specification, has emerged as the world’s standard... Documentation OpenAPI Specification Docs View documentation for the OpenAPI Specification

Scale Your API Design with Confidence

Design

Design and model APIs according to specification-based standards

Build

Build stable, reusable code for your API in almost any language

Document

Improve developer experience with interactive API documentation

Test

Perform simple functional tests on your APIs without overhead

Standardize

Set and enforce API style guidelines across your API architecture