openapi: 3.0.1
info:
  title: Papercups API
  description: >-
    REST API for Papercups, the open-source customer-messaging and live-chat
    platform built on Elixir/Phoenix. Covers the documented conversations,
    messages, and customers resources plus the authenticated user endpoint.
    Authentication uses a Bearer API key (available from the Papercups
    dashboard). The hosted instance is at https://app.papercups.io; self-hosted
    deployments expose the same paths on their own host. Papercups is in
    maintenance mode (community-maintained).
  termsOfService: https://papercups.io
  contact:
    name: Papercups
    url: https://github.com/papercups-io/papercups
  license:
    name: MIT
    url: https://github.com/papercups-io/papercups/blob/master/LICENSE
  version: '1.0'
servers:
  - url: https://app.papercups.io/api/v1
    description: Papercups hosted instance
  - url: https://{host}/api/v1
    description: Self-hosted Papercups instance
    variables:
      host:
        default: app.papercups.io
        description: Hostname of your self-hosted Papercups deployment
security:
  - bearerAuth: []
tags:
  - name: Conversations
    description: Threads of messages between customers and agents.
  - name: Messages
    description: Individual messages within conversations.
  - name: Customers
    description: Customer records (users, leads, or contacts).
  - name: Users
    description: Authenticated user and team members.
paths:
  /me:
    get:
      operationId: getCurrentUser
      tags:
        - Users
      summary: Retrieve the authenticated user
      description: Returns information about the user that owns the API key.
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/UserResponse'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /conversations:
    get:
      operationId: listConversations
      tags:
        - Conversations
      summary: List conversations
      description: >-
        Lists conversations. Supports filtering by status, priority,
        customer_id, and assignee_id via query parameters.
      parameters:
        - name: status
          in: query
          required: false
          schema:
            type: string
            enum: [open, closed]
        - name: priority
          in: query
          required: false
          schema:
            type: string
            enum: [priority, not_priority]
        - name: customer_id
          in: query
          required: false
          schema:
            type: string
        - name: assignee_id
          in: query
          required: false
          schema:
            type: string
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ConversationListResponse'
        '401':
          $ref: '#/components/responses/Unauthorized'
    post:
      operationId: createConversation
      tags:
        - Conversations
      summary: Create a conversation
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                conversation:
                  $ref: '#/components/schemas/ConversationInput'
      responses:
        '201':
          description: Created
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ConversationResponse'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /conversations/{id}:
    parameters:
      - $ref: '#/components/parameters/IdParam'
    get:
      operationId: getConversation
      tags:
        - Conversations
      summary: Retrieve a conversation
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ConversationResponse'
        '404':
          $ref: '#/components/responses/NotFound'
    put:
      operationId: updateConversation
      tags:
        - Conversations
      summary: Update a conversation
      description: Update conversation status, priority, or assignee.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                conversation:
                  $ref: '#/components/schemas/ConversationInput'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ConversationResponse'
        '404':
          $ref: '#/components/responses/NotFound'
    delete:
      operationId: deleteConversation
      tags:
        - Conversations
      summary: Delete a conversation
      responses:
        '204':
          description: No Content
        '404':
          $ref: '#/components/responses/NotFound'
  /messages:
    get:
      operationId: listMessages
      tags:
        - Messages
      summary: List messages
      parameters:
        - name: conversation_id
          in: query
          required: false
          schema:
            type: string
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/MessageListResponse'
        '401':
          $ref: '#/components/responses/Unauthorized'
    post:
      operationId: createMessage
      tags:
        - Messages
      summary: Create a message
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                message:
                  $ref: '#/components/schemas/MessageInput'
      responses:
        '201':
          description: Created
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/MessageResponse'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /messages/{id}:
    parameters:
      - $ref: '#/components/parameters/IdParam'
    get:
      operationId: getMessage
      tags:
        - Messages
      summary: Retrieve a message
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/MessageResponse'
        '404':
          $ref: '#/components/responses/NotFound'
    delete:
      operationId: deleteMessage
      tags:
        - Messages
      summary: Delete a message
      responses:
        '204':
          description: No Content
        '404':
          $ref: '#/components/responses/NotFound'
  /customers:
    get:
      operationId: listCustomers
      tags:
        - Customers
      summary: List customers
      description: Lists customers, filterable by name, email, host, and company_id.
      parameters:
        - name: name
          in: query
          required: false
          schema:
            type: string
        - name: email
          in: query
          required: false
          schema:
            type: string
        - name: host
          in: query
          required: false
          schema:
            type: string
        - name: company_id
          in: query
          required: false
          schema:
            type: string
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CustomerListResponse'
        '401':
          $ref: '#/components/responses/Unauthorized'
    post:
      operationId: createCustomer
      tags:
        - Customers
      summary: Create a customer
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                customer:
                  $ref: '#/components/schemas/CustomerInput'
      responses:
        '201':
          description: Created
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CustomerResponse'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /customers/{id}:
    parameters:
      - $ref: '#/components/parameters/IdParam'
    get:
      operationId: getCustomer
      tags:
        - Customers
      summary: Retrieve a customer
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CustomerResponse'
        '404':
          $ref: '#/components/responses/NotFound'
    put:
      operationId: updateCustomer
      tags:
        - Customers
      summary: Update a customer
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                customer:
                  $ref: '#/components/schemas/CustomerInput'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CustomerResponse'
        '404':
          $ref: '#/components/responses/NotFound'
    delete:
      operationId: deleteCustomer
      tags:
        - Customers
      summary: Delete a customer
      responses:
        '204':
          description: No Content
        '404':
          $ref: '#/components/responses/NotFound'
components:
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: >-
        Bearer API key (personal API key / token) from the Papercups
        dashboard, sent as `Authorization: Bearer <API_KEY>`.
  parameters:
    IdParam:
      name: id
      in: path
      required: true
      schema:
        type: string
      description: Resource identifier (UUID).
  responses:
    Unauthorized:
      description: Missing or invalid API key
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    NotFound:
      description: Resource not found
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  schemas:
    Conversation:
      type: object
      properties:
        id:
          type: string
        account_id:
          type: string
        customer_id:
          type: string
        assignee_id:
          type: string
          nullable: true
        status:
          type: string
          enum: [open, closed]
        priority:
          type: string
          enum: [priority, not_priority]
        source:
          type: string
        read:
          type: boolean
        inserted_at:
          type: string
          format: date-time
        updated_at:
          type: string
          format: date-time
    ConversationInput:
      type: object
      properties:
        customer_id:
          type: string
        assignee_id:
          type: string
        status:
          type: string
          enum: [open, closed]
        priority:
          type: string
          enum: [priority, not_priority]
        source:
          type: string
    ConversationResponse:
      type: object
      properties:
        data:
          $ref: '#/components/schemas/Conversation'
    ConversationListResponse:
      type: object
      properties:
        data:
          type: array
          items:
            $ref: '#/components/schemas/Conversation'
    Message:
      type: object
      properties:
        id:
          type: string
        account_id:
          type: string
        conversation_id:
          type: string
        customer_id:
          type: string
          nullable: true
        user_id:
          type: string
          nullable: true
        body:
          type: string
        type:
          type: string
        created_at:
          type: string
          format: date-time
        seen_at:
          type: string
          format: date-time
          nullable: true
    MessageInput:
      type: object
      required:
        - body
        - conversation_id
      properties:
        body:
          type: string
        conversation_id:
          type: string
        customer_id:
          type: string
        user_id:
          type: string
    MessageResponse:
      type: object
      properties:
        data:
          $ref: '#/components/schemas/Message'
    MessageListResponse:
      type: object
      properties:
        data:
          type: array
          items:
            $ref: '#/components/schemas/Message'
    Customer:
      type: object
      properties:
        id:
          type: string
        account_id:
          type: string
        name:
          type: string
          nullable: true
        email:
          type: string
          nullable: true
        external_id:
          type: string
          nullable: true
        phone:
          type: string
          nullable: true
        company_id:
          type: string
          nullable: true
        host:
          type: string
          nullable: true
        current_url:
          type: string
          nullable: true
        browser:
          type: string
          nullable: true
        os:
          type: string
          nullable: true
        metadata:
          type: object
          additionalProperties: true
        first_seen:
          type: string
          format: date
        last_seen_at:
          type: string
          format: date-time
        inserted_at:
          type: string
          format: date-time
        updated_at:
          type: string
          format: date-time
    CustomerInput:
      type: object
      properties:
        name:
          type: string
        email:
          type: string
        external_id:
          type: string
        phone:
          type: string
        company_id:
          type: string
        metadata:
          type: object
          additionalProperties: true
    CustomerResponse:
      type: object
      properties:
        data:
          $ref: '#/components/schemas/Customer'
    CustomerListResponse:
      type: object
      properties:
        data:
          type: array
          items:
            $ref: '#/components/schemas/Customer'
    User:
      type: object
      properties:
        id:
          type: string
        email:
          type: string
        account_id:
          type: string
        role:
          type: string
    UserResponse:
      type: object
      properties:
        data:
          $ref: '#/components/schemas/User'
    Error:
      type: object
      properties:
        error:
          type: object
          properties:
            status:
              type: integer
            message:
              type: string