Description: The OpenAPI is a specification for building APIs (Application Programming Interfaces) that allows for a standard, language-agnostic interface to RESTful APIs. It is used to design, build, document, and consume REST APIs, enabling interoperability between different systems. The OpenAPI specification, formerly known as the Swagger specification, is developed by the OpenAPI Initiative, which includes more than 30 organizations from different areas of the tech industry. Additional information: OpenAPI, formerly known as Swagger, is a specification for machine-readable interface files for describing, producing, consuming, and visualizing RESTful web services. It is a set of rules and protocols that provide a definition and structure for how an application should interact with a RESTful API. OpenAPI is language-agnostic, meaning it can be used with any programming language that supports RESTful APIs. It is also platform-agnostic, meaning it can be used on any platform that supports HTTP. The OpenAPI specification (OAS) defines a standard, language-agnostic interface to RESTful APIs which allows both humans and computers to discover and understand the capabilities of the service without access to source code, documentation, or through network traffic inspection. When properly defined, a consumer can understand and interact with the remote service with a minimal amount of implementation logic. An OpenAPI definition can then be used by documentation generation tools to display the API, code generation tools to generate servers and clients in various programming languages, testing tools, and many other use cases. The OpenAPI Specification is developed within the OpenAPI Initiative, a consortium of industry experts that have come together to build a common, open specification that offers real value across a diverse array of applications and industries. The members of the OpenAPI Initiative represent a broad array of companies from different sectors of the economy including technology, telecommunications, banking, retail, energy, media, and more. The OpenAPI Specification is free to use and the OpenAPI Initiative encourages its adoption by providing a variety of resources for individuals and organizations interested in learning more about the specification, its applications, and its benefits. Example: 1. API Documentation: OpenAPI can be used to create clear and concise documentation for APIs. This documentation can be used by developers to understand how to use the API, what data it returns, and what parameters it accepts. 2. API Testing: OpenAPI specifications can be used to generate test cases for APIs. This helps in ensuring that the API is working as expected and any changes or updates do not break existing functionality. 3. API Design: OpenAPI can be used to design APIs before they are actually built. This helps in getting feedback from potential users and making necessary changes before the actual development begins. 4. API Mocking: OpenAPI can be used to create mock servers. These servers mimic the behavior of the actual API and can be used for testing and development purposes. 5. API Gateway Configuration: OpenAPI can be used to configure API gateways. This includes defining routes, setting up rate limiting, and configuring security settings. 6. Client SDK Generation: OpenAPI can be used to generate client SDKs in various programming languages. This helps in speeding up the development process as developers do not have to write code to interact with the API from scratch. 7. Server Stub Generation: OpenAPI can be used to generate server stubs. This is useful in the initial stages of development when the actual API is not yet available. 8. API Versioning: OpenAPI can be used to manage different versions of an API. This helps in maintaining backward compatibility and managing changes in the API. 9. API Discovery: OpenAPI can be used to create a searchable catalog of APIs. This makes it easier for developers to find and use APIs that meet their requirements. 10. API Monitoring: OpenAPI can be used to monitor the performance and usage of APIs. This helps in identifying issues and optimizing the API for better performance. Publisher: EIRA team LOST view: TV-Technical Agreements Identifier: http://data.europa.eu/dr8/egovera/OpenAPIContract EIRA traceability: eira:TechnicalInteroperabilityAgreementContract EIRA concept: eira:SolutionBuildingBlock Last modification: 2023-08-03 dct:identifier: http://data.europa.eu/dr8/egovera/OpenAPIContract dct:title: OpenAPI Contract