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OpenAPI Specification Schemas

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This package contains the official JSON Schemas for every version of Swagger/OpenAPI Specification:

Version Schema Docs
Swagger 1.2 v1.2 schema v1.2 docs
Swagger 2.0 v2.0 schema v2.0 docs
OpenAPI 3.0.x v3.0.x schema v3.0.3 docs
OpenAPI 3.1.x v3.1.x schema v3.1.0 docs

All schemas are kept up-to-date with the latest official definitions via an automated CI/CD job. 🤖📦


You can install OpenAPI Schemas via npm.

npm install @apidevtools/openapi-schemas


The default export contains all OpenAPI Specification versions:

const openapi = require("@apidevtools/openapi-schemas");

console.log(openapi.v1);    // { $schema, id, properties, definitions, ... }
console.log(openapi.v2);    // { $schema, id, properties, definitions, ... }
console.log(openapi.v3);    // { $schema, id, properties, definitions, ... }
console.log(openapi.v31);    // { $schema, id, properties, definitions, ... }

Or you can import the specific version(s) that you need:

const { openapiV1, openapiV2, openapiV3, openapiV31 } = require("@apidevtools/openapi-schemas");

console.log(openapiV1);    // { $schema, id, properties, definitions, ... }
console.log(openapiV2);    // { $schema, id, properties, definitions, ... }
console.log(openapiV3);    // { $schema, id, properties, definitions, ... }
console.log(openapiV31);    // { $schema, id, properties, definitions, ... }

You can use a JSON Schema validator such as Z-Schema or AJV to validate OpenAPI definitions against the specification.

const { openapiV31 } = require("@apidevtools/openapi-schemas");
const ZSchema = require("z-schema");

// Create a ZSchema validator
let validator = new ZSchema();

// Validate an OpenAPI definition against the OpenAPI v3.0 specification
validator.validate(openapiDefinition, openapiV31);


Contributions, enhancements, and bug-fixes are welcome! Open an issue on GitHub and submit a pull request.


To build the project locally on your computer:

  1. Clone this repo
    git clone

  2. Install dependencies
    npm install

  3. Build the code
    npm run build

  4. Run the tests
    npm test


OpenAPI Schemas is 100% free and open-source, under the MIT license. Use it however you want.

This package is Treeware. If you use it in production, then we ask that you buy the world a tree to thank us for our work. By contributing to the Treeware forest you’ll be creating employment for local families and restoring wildlife habitats.

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