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OpenAPI Specification

openapi: 3.2.0
info:
  title: npm Hooks Downloads API
  description: The npm Hooks API allows developers to subscribe to notifications about changes in the npm registry.
  version: 1.0.0
  contact:
    name: npm Support
    url: https://www.npmjs.com/support
  termsOfService: https://docs.npmjs.com/policies/terms
servers:
- url: https://registry.npmjs.org
  description: npm Public Registry
security:
- bearerAuth: []
tags:
- name: Downloads
  description: Package tarball downloads.
paths:
  /{package}/-/{tarball}:
    get:
      operationId: downloadPackageTarball
      summary: Download a package tarball
      description: Downloads the tarball archive for a specific version of a package. The tarball filename is typically in the format {package}-{version}.tgz. This endpoint is used by the npm CLI during package installation.
      tags:
      - Downloads
      parameters:
      - $ref: '#/components/parameters/packageName'
      - name: tarball
        in: path
        description: The tarball filename, typically in the format {package}-{version}.tgz.
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Tarball file returned successfully.
          content:
            application/gzip:
              schema:
                type: string
                format: binary
        '404':
          description: Tarball not found.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
components:
  schemas:
    Error:
      type: object
      description: An error response from the registry.
      properties:
        error:
          type: string
          description: The error type or code.
        reason:
          type: string
          description: A human-readable explanation of the error.
  parameters:
    packageName:
      name: package
      in: path
      description: The name of the package. For scoped packages, use URL encoding (e.g., @scope%2Fpackage).
      required: true
      schema:
        type: string
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: npm access token provided as a Bearer token.
externalDocs:
  description: npm Hooks Documentation
  url: https://blog.npmjs.org/post/145260155635/introducing-hooks-get-notifications-of-npm