
What is OpenAPI? – OpenAPI Initiative
It is an open standard for describing your APIs, allowing you to provide an API specification encoded in a JSON or YAML document. It provides a comprehensive dictionary of terms that reflects commonly …
Open API - Wikipedia
In contrast to a private API, an open API is publicly available for all developers to access. They allow developers, outside of an organization's workforce, to access backend data that can then be used to …
What is Open API? Advantages, Disadvantages & Examples
Oct 6, 2025 · The API definition of a service defines how clients can interact with it without the need for the client to read its source code. To summarize, OpenAPI is a RESTful API specification describing …
What is OpenAPI? - Postman Blog
Aug 10, 2023 · OpenAPI, formerly known as Swagger, is an interoperable, machine-readable, and human-friendly specification format that is used to define HTTP APIs. It relies on JSON Schema to …
What Is OpenAPI? | Swagger Docs
OpenAPI Specification (formerly Swagger Specification) is an API description format for REST APIs. An OpenAPI file allows you to describe your entire API, including: Contact information, license, terms of …
What is Open API (Public API)? | Definition from TechTarget
Oct 13, 2021 · An open API, also called public API, is an application programming interface made publicly available to software developers. Open APIs are published on the internet and shared freely, …
What is OpenAPI? Introduction to OpenAPI Specification (OAS)
Dec 18, 2025 · OpenAPI Specification (OAS) has become the standard way to define HTTP APIs. Like a universal adapter, an OpenAPI definition describes API methods and metadata, increasing API …
Exploring the Meaning of Open API: A Comprehensive Guide
Aug 13, 2025 · Open APIs serve as the critical infrastructure for modern software applications, acting as conduits for seamless communication between systems. At the heart of an API lies its structure, …
What is an Open API? Benefits, Challenges, and Strategic Insights
May 8, 2024 · An open or public API is a freely accessible application programming interface (API) that allows you to interact with a software application or service. Without restrictive access barriers, an …
What is an Open API? - N-CATT
Sep 2, 2022 · An Open API (also referred to as a public API) is an API that is open to the public: it’s documented, internet-accessible, and available for everyone to use—often without special agreements.