openapi: 3.0.1
info:
  title: MailPace API Tokens Domains API
  description: The MailPace transactional email API. Send application email over HTTPS, manage DKIM-verified sending domains and their API tokens, and receive Ed25519-signed delivery event webhooks. Only HTTPS is supported.
  termsOfService: https://mailpace.com/terms
  contact:
    name: MailPace Support
    email: support@mailpace.com
    url: https://docs.mailpace.com
  version: '1.0'
servers:
- url: https://app.mailpace.com/api/v1
  description: MailPace production API
tags:
- name: Domains
  description: Manage sending domains and DKIM verification.
paths:
  /domains:
    get:
      operationId: listDomains
      tags:
      - Domains
      summary: List domains
      description: Returns an array of domains for the authenticated organization.
      security:
      - OrganizationToken: []
      responses:
        '200':
          description: An array of domains.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Domain'
        '401':
          description: Missing or invalid organization token.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
    post:
      operationId: createDomain
      tags:
      - Domains
      summary: Create a domain
      description: Creates a new sending domain for the authenticated organization.
      security:
      - OrganizationToken: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/DomainCreateRequest'
      responses:
        '200':
          description: The created domain.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Domain'
        '422':
          description: Validation error.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
  /domains/{id}:
    parameters:
    - $ref: '#/components/parameters/DomainId'
    get:
      operationId: getDomain
      tags:
      - Domains
      summary: Retrieve a domain
      description: Returns a single domain by ID.
      security:
      - OrganizationToken: []
      responses:
        '200':
          description: The requested domain.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Domain'
        '404':
          description: Domain not found.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
    patch:
      operationId: updateDomain
      tags:
      - Domains
      summary: Update a domain
      description: Updates the name or url of an existing domain.
      security:
      - OrganizationToken: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/DomainUpdateRequest'
      responses:
        '200':
          description: The updated domain.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Domain'
  /domains/{id}/verify:
    parameters:
    - $ref: '#/components/parameters/DomainId'
    post:
      operationId: verifyDomain
      tags:
      - Domains
      summary: Verify a domain
      description: Triggers verification of the domain's DKIM and advanced DNS records.
      security:
      - OrganizationToken: []
      responses:
        '200':
          description: The domain with updated verification status.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Domain'
components:
  schemas:
    Domain:
      type: object
      properties:
        id:
          type: integer
        name:
          type: string
          nullable: true
        url:
          type: string
        dkim_selector:
          type: string
        dkim_string:
          type: string
        dkim_verified:
          type: boolean
        advanced_verified:
          type: boolean
        webhook_public_key:
          type: string
          description: Base64-encoded Ed25519 public key used to verify webhook signatures.
        created_at:
          type: string
          format: date-time
        modified_at:
          type: string
          format: date-time
    Error:
      type: object
      properties:
        error:
          type: string
          description: Human-readable error message.
        errors:
          type: object
          description: Field-level validation errors, when applicable.
          additionalProperties:
            type: array
            items:
              type: string
    DomainUpdateRequest:
      type: object
      required:
      - domain
      properties:
        domain:
          type: object
          properties:
            url:
              type: string
            name:
              type: string
    DomainCreateRequest:
      type: object
      required:
      - domain
      properties:
        domain:
          type: object
          required:
          - url
          properties:
            url:
              type: string
              description: The domain to send from.
              example: acme.com
            name:
              type: string
              description: Optional display name.
  parameters:
    DomainId:
      name: id
      in: path
      required: true
      description: The numeric ID of the domain.
      schema:
        type: integer
  securitySchemes:
    ServerToken:
      type: apiKey
      in: header
      name: MailPace-Server-Token
      description: Per-domain server token used to authenticate send requests.
    OrganizationToken:
      type: apiKey
      in: header
      name: MailPace-Organization-Token
      description: Organization token used to authenticate domain and token management.