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OpenAPI Specification

openapi: 3.2.0
info:
  title: Missive REST Analytics Conversations API
  description: The Missive REST API allows developers to manage conversations, messages, contacts, drafts, labels, and analytics programmatically. Authentication uses Bearer tokens (personal access tokens) generated in Missive preferences. The API requires a Productive plan or higher to generate API tokens. Responses are JSON-formatted with HTTP 200 or 201 success codes.
  version: '1'
  contact:
    name: Missive Support
    url: https://missiveapp.com/help
  termsOfService: https://missiveapp.com/terms
servers:
- url: https://public.missiveapp.com/v1
  description: Missive REST API v1
security:
- bearerAuth: []
tags:
- name: Conversations
  description: Manage conversations in the inbox
paths:
  /conversations:
    get:
      operationId: listConversations
      summary: List Conversations
      description: List conversations. At least one mailbox filter must be provided. Conversations are ordered newest to oldest by last activity. Pagination uses the last_activity_at timestamp of the last item as the until parameter.
      tags:
      - Conversations
      parameters:
      - name: inbox
        in: query
        schema:
          type: boolean
      - name: all
        in: query
        schema:
          type: boolean
      - name: assigned
        in: query
        schema:
          type: boolean
      - name: closed
        in: query
        schema:
          type: boolean
      - name: snoozed
        in: query
        schema:
          type: boolean
      - name: flagged
        in: query
        schema:
          type: boolean
      - name: trashed
        in: query
        schema:
          type: boolean
      - name: junked
        in: query
        schema:
          type: boolean
      - name: drafts
        in: query
        schema:
          type: boolean
      - name: shared_label
        in: query
        description: Shared label ID to filter by
        schema:
          type: string
      - name: team_inbox
        in: query
        description: Team ID to filter team inbox
        schema:
          type: string
      - name: team_closed
        in: query
        description: Team ID to filter closed team conversations
        schema:
          type: string
      - name: team_all
        in: query
        description: Team ID for all team conversations
        schema:
          type: string
      - name: limit
        in: query
        description: Number of conversations (default 25, max 50)
        schema:
          type: integer
          default: 25
          maximum: 50
      - name: until
        in: query
        description: Unix timestamp for cursor-based pagination
        schema:
          type: integer
          format: int64
      - name: organization
        in: query
        description: Filter by organization ID
        schema:
          type: string
      - name: email
        in: query
        description: Filter by email address
        schema:
          type: string
      - name: domain
        in: query
        description: Filter by email domain
        schema:
          type: string
      - name: contact_organization
        in: query
        description: Filter by contact organization ID
        schema:
          type: string
      responses:
        '200':
          description: Array of conversation objects
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ConversationsResponse'
  /conversations/{id}:
    get:
      operationId: getConversation
      summary: Get Conversation
      description: Fetch a specific conversation using its ID.
      tags:
      - Conversations
      parameters:
      - $ref: '#/components/parameters/conversationId'
      responses:
        '200':
          description: Single conversation object
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ConversationResponse'
        '404':
          description: Conversation not found
    patch:
      operationId: updateConversation
      summary: Update Conversation(s)
      description: Update one or more conversations. The id parameter supports comma-separated IDs for bulk operations.
      tags:
      - Conversations
      parameters:
      - $ref: '#/components/parameters/conversationId'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/UpdateConversationRequest'
      responses:
        '200':
          description: Updated conversation object(s)
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ConversationsResponse'
        '400':
          $ref: '#/components/responses/BadRequest'
        '404':
          description: Conversation not found
  /conversations/{id}/messages:
    get:
      operationId: listConversationMessages
      summary: List Conversation Messages
      description: List messages within a conversation.
      tags:
      - Conversations
      parameters:
      - $ref: '#/components/parameters/conversationId'
      - name: limit
        in: query
        description: Number of messages (default 10, max 10)
        schema:
          type: integer
          default: 10
          maximum: 10
      - name: until
        in: query
        description: Unix timestamp for cursor pagination
        schema:
          type: integer
          format: int64
      responses:
        '200':
          description: Array of message objects
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/MessagesResponse'
  /conversations/{id}/comments:
    get:
      operationId: listConversationComments
      summary: List Conversation Comments
      description: List comments (internal notes) within a conversation.
      tags:
      - Conversations
      parameters:
      - $ref: '#/components/parameters/conversationId'
      - name: limit
        in: query
        description: Number of comments (default 10, max 10)
        schema:
          type: integer
          default: 10
          maximum: 10
      - name: until
        in: query
        description: Unix timestamp for cursor pagination
        schema:
          type: integer
          format: int64
      responses:
        '200':
          description: Array of comment objects
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CommentsResponse'
  /conversations/{id}/drafts:
    get:
      operationId: listConversationDrafts
      summary: List Conversation Drafts
      description: List drafts within a conversation.
      tags:
      - Conversations
      parameters:
      - $ref: '#/components/parameters/conversationId'
      - name: limit
        in: query
        description: Number of drafts (default 10, max 10)
        schema:
          type: integer
          default: 10
          maximum: 10
      - name: until
        in: query
        description: Unix timestamp for cursor pagination
        schema:
          type: integer
          format: int64
      responses:
        '200':
          description: Array of draft objects
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/DraftsResponse'
  /conversations/{id}/posts:
    get:
      operationId: listConversationPosts
      summary: List Conversation Posts
      description: List posts within a conversation.
      tags:
      - Conversations
      parameters:
      - $ref: '#/components/parameters/conversationId'
      - name: limit
        in: query
        description: Number of posts (default 10, max 10)
        schema:
          type: integer
          default: 10
          maximum: 10
      - name: until
        in: query
        description: Unix timestamp for cursor pagination
        schema:
          type: integer
          format: int64
      responses:
        '200':
          description: Array of post objects
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/PostsResponse'
  /conversations/{id}/merge:
    post:
      operationId: mergeConversations
      summary: Merge Conversations
      description: Merge a conversation into a target conversation.
      tags:
      - Conversations
      parameters:
      - $ref: '#/components/parameters/conversationId'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/MergeConversationRequest'
      responses:
        '200':
          description: Merged conversation object
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ConversationResponse'
        '400':
          $ref: '#/components/responses/BadRequest'
components:
  schemas:
    Conversation:
      type: object
      properties:
        id:
          type: string
        subject:
          type: string
        color:
          type: string
        organization:
          type: string
        team:
          type: string
        assignees:
          type: array
          items:
            type: string
        shared_labels:
          type: array
          items:
            type: string
        message_count:
          type: integer
        last_activity_at:
          type: integer
          format: int64
        assigned:
          type: boolean
        unassigned:
          type: boolean
        closed:
          type: boolean
        archived:
          type: boolean
        flagged:
          type: boolean
        snoozed:
          type: boolean
        trashed:
          type: boolean
        junked:
          type: boolean
    Error:
      type: object
      properties:
        error:
          type: string
          description: Error message
    MessageField:
      type: object
      properties:
        name:
          type: string
        address:
          type: string
        phone_number:
          type: string
        id:
          type: string
        username:
          type: string
    DraftsResponse:
      type: object
      properties:
        drafts:
          type: array
          items:
            $ref: '#/components/schemas/Message'
    ConversationsResponse:
      type: object
      properties:
        conversations:
          type: array
          items:
            $ref: '#/components/schemas/Conversation'
    Attachment:
      type: object
      properties:
        id:
          type: string
        filename:
          type: string
        extension:
          type: string
        media_type:
          type: string
        sub_type:
          type: string
        size:
          type: integer
        url:
          type: string
        width:
          type: integer
        height:
          type: integer
    UpdateConversationRequest:
      type: object
      properties:
        subject:
          type: string
        color:
          type: string
        organization:
          type: string
        team:
          type: string
        add_users:
          type: array
          items:
            type: string
        add_assignees:
          type: array
          items:
            type: string
        remove_assignees:
          type: array
          items:
            type: string
        add_shared_labels:
          type: array
          items:
            type: string
        remove_shared_labels:
          type: array
          items:
            type: string
        add_to_inbox:
          type: boolean
        add_to_team_inbox:
          type: string
          description: Team ID to add to that team's inbox
        close:
          type: boolean
        reopen:
          type: boolean
    Message:
      type: object
      properties:
        id:
          type: string
        subject:
          type: string
        preview:
          type: string
        body:
          type: string
        type:
          type: string
        from_field:
          $ref: '#/components/schemas/MessageField'
        to_fields:
          type: array
          items:
            $ref: '#/components/schemas/MessageField'
        cc_fields:
          type: array
          items:
            $ref: '#/components/schemas/MessageField'
        bcc_fields:
          type: array
          items:
            $ref: '#/components/schemas/MessageField'
        references:
          type: array
          items:
            type: string
        in_reply_to:
          type: array
          items:
            type: string
        attachments:
          type: array
          items:
            $ref: '#/components/schemas/Attachment'
        created_at:
          type: integer
          format: int64
        updated_at:
          type: integer
          format: int64
    Post:
      type: object
      properties:
        id:
          type: string
        body:
          type: string
        attachments:
          type: array
          items:
            $ref: '#/components/schemas/Attachment'
        created_at:
          type: integer
          format: int64
    Comment:
      type: object
      properties:
        id:
          type: string
        body:
          type: string
        author:
          type: object
          properties:
            id:
              type: string
            name:
              type: string
        mentions:
          type: array
          items:
            type: object
            properties:
              id:
                type: string
              name:
                type: string
        attachments:
          type: array
          items:
            $ref: '#/components/schemas/Attachment'
        created_at:
          type: integer
          format: int64
    ConversationResponse:
      type: object
      properties:
        conversations:
          $ref: '#/components/schemas/Conversation'
    MergeConversationRequest:
      type: object
      required:
      - target
      properties:
        target:
          type: string
          description: Destination conversation ID
        subject:
          type: string
          description: Subject for the merged conversation
    PostsResponse:
      type: object
      properties:
        posts:
          type: array
          items:
            $ref: '#/components/schemas/Post'
    MessagesResponse:
      type: object
      properties:
        messages:
          type: array
          items:
            $ref: '#/components/schemas/Message'
    CommentsResponse:
      type: object
      properties:
        comments:
          type: array
          items:
            $ref: '#/components/schemas/Comment'
  parameters:
    conversationId:
      name: id
      in: path
      required: true
      description: Conversation ID (supports comma-separated IDs for bulk operations)
      schema:
        type: string
  responses:
    BadRequest:
      description: Bad request — invalid parameters
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: 'Personal access token generated in Missive preferences. Format: Bearer missive_pat-[token]. Requires Productive plan or higher.'
externalDocs:
  description: Missive Developer Documentation
  url: https://missiveapp.com/docs/developers/rest-api