About
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.
Pricing
Pricing Type
Open Source
Last checked: February 20, 2026
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Key Facts
Categories
Platforms
Web
Company
OpenAPI Initiative
Founded
Founded in 2015
Country
Global
Language
English