@hey-api/spec-types

Spec Types

TypeScript definitions for OpenAPI and JSON Schema specifications with complete inline documentation.

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About

TypeScript definitions for OpenAPI and JSON Schema specifications with complete inline documentation.

Part of the Hey API ecosystem.

Features

• OpenAPI 2.0 (Swagger), 3.0, and 3.1 specifications
• JSON Schema Draft 4 and Draft 2020-12
• inline JSDoc on every property
• zero runtime footprint, types only

Contributing

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Start with our Contributing guide and release your first feature.

Sponsors

Hey API is sponsor-funded. If you rely on Hey API in production, consider becoming a sponsor to accelerate the roadmap.

Gold

Best-in-class developer interfaces for your API. stainless.com

The open source coding agent. opencode.ai

Silver

scalar.com

fastapi.tiangolo.com

Bronze

Installation

You can download @hey-api/spec-types from npm using your favorite package manager.

npm

npm add @hey-api/spec-types -D -E

pnpm

pnpm add @hey-api/spec-types -D -E

yarn

yarn add @hey-api/spec-types -D -E

bun

bun add @hey-api/spec-types -D -E

Usage

OpenAPI

Hover over any property to see its definition from the specification.

import type { OpenAPIV3_1 } from '@hey-api/spec-types';

const doc = {
  openapi: '3.1.2',
  info: {
    title: 'My OpenAPI document',
    version: '1.0.0',
  },
} satisfies OpenAPIV3_1.Document;

JSON Schema

Full type coverage for Draft 4 and Draft 2020-12 schemas.

import type { JSONSchemaDraft2020_12 } from '@hey-api/spec-types';

const doc = {
  properties: {
    foo: {
      type: 'string',
    },
  },
  type: 'object',
} satisfies JSONSchemaDraft2020_12.Document;

License

Released under the MIT License.