Buttondown Newsletters API

openapi: 3.1.0
info:
  title: Buttondown Emails Newsletters API
  version: '1.0'
  description: Minimal OpenAPI 3.1 description of the Buttondown newsletter platform API. Covers core RESTful resources for subscribers, emails, tags, newsletters, and webhooks. Derived from the public Buttondown documentation.
  x-generated-from: https://docs.buttondown.com/api
  x-generated-by: claude-crawl-2026-05-08
servers:
- url: https://api.buttondown.email/v1
  description: Production
security:
- apiKeyAuth: []
tags:
- name: Newsletters
paths:
  /newsletters:
    get:
      tags:
      - Newsletters
      summary: List all newsletters
      operationId: listNewsletters
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/PaginatedList'
components:
  schemas:
    PaginatedList:
      type: object
      properties:
        count:
          type: integer
        next:
          type: string
          nullable: true
        previous:
          type: string
          nullable: true
        results:
          type: array
          items:
            $ref: '#/components/schemas/Resource'
      additionalProperties: true
    Resource:
      type: object
      additionalProperties: true
  securitySchemes:
    apiKeyAuth:
      type: apiKey
      in: header
      name: Authorization
      description: API token in the form `Token <api-key>`.