SleekFlow Conversations & Messaging API

openapi: 3.0.1
info:
  title: SleekFlow Platform API
  description: >-
    The SleekFlow Platform API lets you build custom integrations on top of the
    SleekFlow omnichannel messaging platform. It exposes contacts, conversations
    and messaging (WhatsApp and other channels), companies, lists, staff and
    teams, and webhooks. Authentication uses a Platform API key issued from the
    SleekFlow Integrations dashboard (Admin access required), passed in the
    X-Sleekflow-ApiKey request header. Endpoint paths in this document follow
    SleekFlow's documented Platform API resources; verify exact paths and
    request/response shapes against the live reference at apidoc.sleekflow.io
    during reconciliation.
  termsOfService: https://sleekflow.io/terms-of-service
  contact:
    name: SleekFlow Support
    url: https://help.sleekflow.io
  version: '1.0'
servers:
  - url: https://api.sleekflow.io
    description: SleekFlow Platform API
security:
  - ApiKeyAuth: []
tags:
  - name: Contacts
    description: Create, read, search, update, and delete contacts.
  - name: Lists
    description: Manage contact lists and list membership.
  - name: Conversations
    description: Read conversations and update conversation assignment.
  - name: Messaging
    description: Send messages, files, and internal notes; check conversation windows.
  - name: Companies
    description: Manage company records.
  - name: Staff and Teams
    description: Manage staff and teams.
  - name: Webhooks
    description: Register webhook subscriptions for platform events.
paths:
  /v1/contacts:
    get:
      operationId: getContacts
      tags:
        - Contacts
      summary: Get list of contacts
      description: Returns a paginated list of contacts with their contact information.
      parameters:
        - name: limit
          in: query
          schema:
            type: integer
            default: 50
        - name: offset
          in: query
          schema:
            type: integer
            default: 0
      responses:
        '200':
          description: A paginated list of contacts.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ContactList'
    post:
      operationId: addOrUpdateContact
      tags:
        - Contacts
      summary: Add or update contact
      description: >-
        Creates a new contact or updates an existing contact matched by phone
        number or email.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ContactInput'
      responses:
        '200':
          description: The created or updated contact.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Contact'
  /v1/contacts/search:
    post:
      operationId: searchContacts
      tags:
        - Contacts
      summary: Search contacts
      description: >-
        Searches contacts by filter criteria. Supports dynamic included fields
        to control which contact properties are returned.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ContactSearchRequest'
      responses:
        '200':
          description: Matching contacts.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ContactList'
  /v1/contacts/{contactId}:
    get:
      operationId: getContact
      tags:
        - Contacts
      summary: Get contact
      description: Returns a single contact by its identifier.
      parameters:
        - name: contactId
          in: path
          required: true
          schema:
            type: string
      responses:
        '200':
          description: The requested contact.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Contact'
        '404':
          description: Contact not found.
    delete:
      operationId: deleteContact
      tags:
        - Contacts
      summary: Delete contact
      description: Deletes a contact by its identifier.
      parameters:
        - name: contactId
          in: path
          required: true
          schema:
            type: string
      responses:
        '204':
          description: Contact deleted.
  /v1/lists:
    get:
      operationId: getLists
      tags:
        - Lists
      summary: Get lists
      description: Returns all contact lists for the account.
      responses:
        '200':
          description: A list of contact lists.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/ContactGroup'
    post:
      operationId: createList
      tags:
        - Lists
      summary: Create list
      description: Creates a new contact list.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ContactGroupInput'
      responses:
        '200':
          description: The created list.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ContactGroup'
  /v1/lists/{listId}:
    get:
      operationId: getListDetails
      tags:
        - Lists
      summary: Get list details
      description: Returns details and membership for a contact list.
      parameters:
        - name: listId
          in: path
          required: true
          schema:
            type: string
      responses:
        '200':
          description: The contact list details.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ContactGroup'
    delete:
      operationId: deleteList
      tags:
        - Lists
      summary: Delete list
      description: Deletes a contact list.
      parameters:
        - name: listId
          in: path
          required: true
          schema:
            type: string
      responses:
        '204':
          description: List deleted.
  /v1/lists/{listId}/contacts:
    post:
      operationId: addContactsToList
      tags:
        - Lists
      summary: Add contacts to list
      description: Adds one or more contacts to a contact list.
      parameters:
        - name: listId
          in: path
          required: true
          schema:
            type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ContactIdList'
      responses:
        '200':
          description: Contacts added to list.
    delete:
      operationId: removeContactsFromList
      tags:
        - Lists
      summary: Remove contacts from list
      description: Removes one or more contacts from a contact list.
      parameters:
        - name: listId
          in: path
          required: true
          schema:
            type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ContactIdList'
      responses:
        '200':
          description: Contacts removed from list.
  /v1/conversations:
    get:
      operationId: getConversations
      tags:
        - Conversations
      summary: Get conversations
      description: >-
        Returns conversations, optionally filtered by assignee, team, status,
        channel, and date range, for analytics and inbox integrations.
      parameters:
        - name: assignedTo
          in: query
          schema:
            type: string
        - name: teamId
          in: query
          schema:
            type: string
        - name: status
          in: query
          schema:
            type: string
            enum: [open, pending, closed]
        - name: limit
          in: query
          schema:
            type: integer
            default: 50
      responses:
        '200':
          description: A list of conversations.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Conversation'
  /v1/conversations/{conversationId}/messages:
    get:
      operationId: getMessages
      tags:
        - Conversations
      summary: Get messages
      description: Returns the messages within a conversation.
      parameters:
        - name: conversationId
          in: path
          required: true
          schema:
            type: string
      responses:
        '200':
          description: A list of messages.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Message'
  /v1/conversations/{conversationId}/assignee:
    put:
      operationId: updateConversationAssignee
      tags:
        - Conversations
      summary: Update conversation's assignee
      description: Updates the staff member or team assigned to a conversation.
      parameters:
        - name: conversationId
          in: path
          required: true
          schema:
            type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/AssigneeUpdate'
      responses:
        '200':
          description: The updated conversation.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Conversation'
  /v1/messages:
    post:
      operationId: sendMessage
      tags:
        - Messaging
      summary: Send message
      description: >-
        Sends a message to a contact over a supported channel such as WhatsApp,
        Facebook Messenger, Instagram, WeChat, LINE, or SMS.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/SendMessageRequest'
      responses:
        '200':
          description: The sent message.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Message'
  /v1/messages/file:
    post:
      operationId: sendFileMessage
      tags:
        - Messaging
      summary: Send local file with message
      description: Sends a message with an attached local file to a contact.
      requestBody:
        required: true
        content:
          multipart/form-data:
            schema:
              type: object
              properties:
                channel:
                  type: string
                contactId:
                  type: string
                message:
                  type: string
                file:
                  type: string
                  format: binary
              required:
                - channel
                - contactId
                - file
      responses:
        '200':
          description: The sent message.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Message'
  /v1/messages/note:
    post:
      operationId: sendInternalNote
      tags:
        - Messaging
      summary: Send internal note
      description: Adds an internal note to a conversation, visible only to staff.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                conversationId:
                  type: string
                message:
                  type: string
              required:
                - conversationId
                - message
      responses:
        '200':
          description: The created note.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Message'
  /v1/messages/conversation-window:
    get:
      operationId: checkConversationWindow
      tags:
        - Messaging
      summary: Check WhatsApp Business conversation window
      description: >-
        Checks whether the 24-hour WhatsApp Business customer service window is
        open for a contact, determining whether a free-form message or a
        template message must be sent.
      parameters:
        - name: contactId
          in: query
          required: true
          schema:
            type: string
      responses:
        '200':
          description: Conversation window status.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ConversationWindow'
  /v1/companies:
    get:
      operationId: getCompanies
      tags:
        - Companies
      summary: Get companies
      description: Returns a list of company records.
      responses:
        '200':
          description: A list of companies.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Company'
    post:
      operationId: createCompany
      tags:
        - Companies
      summary: Create company
      description: Creates a new company record.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CompanyInput'
      responses:
        '200':
          description: The created company.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Company'
  /v1/companies/{companyId}:
    get:
      operationId: getCompany
      tags:
        - Companies
      summary: Get company
      description: Returns a single company record.
      parameters:
        - name: companyId
          in: path
          required: true
          schema:
            type: string
      responses:
        '200':
          description: The requested company.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Company'
  /v1/staff:
    get:
      operationId: getAllStaff
      tags:
        - Staff and Teams
      summary: Get all staff
      description: Returns all staff members in the account.
      responses:
        '200':
          description: A list of staff.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Staff'
  /v1/staff/{staffId}:
    get:
      operationId: getStaff
      tags:
        - Staff and Teams
      summary: Get staff
      description: Returns a single staff member.
      parameters:
        - name: staffId
          in: path
          required: true
          schema:
            type: string
      responses:
        '200':
          description: The requested staff member.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Staff'
  /v1/teams:
    get:
      operationId: getAllTeams
      tags:
        - Staff and Teams
      summary: Get all teams
      description: Returns all teams in the account.
      responses:
        '200':
          description: A list of teams.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Team'
    post:
      operationId: createTeam
      tags:
        - Staff and Teams
      summary: Create team
      description: Creates a new team.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/TeamInput'
      responses:
        '200':
          description: The created team.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Team'
  /v1/webhooks:
    get:
      operationId: getWebhooks
      tags:
        - Webhooks
      summary: List webhook subscriptions
      description: Returns the registered webhook subscriptions.
      responses:
        '200':
          description: A list of webhook subscriptions.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Webhook'
    post:
      operationId: createWebhook
      tags:
        - Webhooks
      summary: Register webhook subscription
      description: >-
        Registers a webhook callback URL to receive events such as new and
        updated contacts and incoming messages.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/WebhookInput'
      responses:
        '200':
          description: The created webhook subscription.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Webhook'
components:
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: X-Sleekflow-ApiKey
      description: >-
        Platform API key issued from the SleekFlow Integrations dashboard
        (Admin access required).
  schemas:
    Contact:
      type: object
      properties:
        id:
          type: string
        firstName:
          type: string
        lastName:
          type: string
        email:
          type: string
        phoneNumber:
          type: string
        customFields:
          type: object
          additionalProperties: true
        createdAt:
          type: string
          format: date-time
        updatedAt:
          type: string
          format: date-time
    ContactInput:
      type: object
      properties:
        firstName:
          type: string
        lastName:
          type: string
        email:
          type: string
        phoneNumber:
          type: string
        customFields:
          type: object
          additionalProperties: true
    ContactList:
      type: object
      properties:
        records:
          type: array
          items:
            $ref: '#/components/schemas/Contact'
        total:
          type: integer
        limit:
          type: integer
        offset:
          type: integer
    ContactSearchRequest:
      type: object
      properties:
        filters:
          type: array
          items:
            type: object
            properties:
              fieldName:
                type: string
              operator:
                type: string
              value:
                type: string
        includedFields:
          type: array
          items:
            type: string
        limit:
          type: integer
        offset:
          type: integer
    ContactIdList:
      type: object
      properties:
        contactIds:
          type: array
          items:
            type: string
      required:
        - contactIds
    ContactGroup:
      type: object
      properties:
        id:
          type: string
        name:
          type: string
        contactCount:
          type: integer
        createdAt:
          type: string
          format: date-time
    ContactGroupInput:
      type: object
      properties:
        name:
          type: string
      required:
        - name
    Conversation:
      type: object
      properties:
        id:
          type: string
        contactId:
          type: string
        channel:
          type: string
        status:
          type: string
          enum: [open, pending, closed]
        assignedTo:
          type: string
        teamId:
          type: string
        updatedAt:
          type: string
          format: date-time
    AssigneeUpdate:
      type: object
      properties:
        assignedToStaffId:
          type: string
        teamId:
          type: string
    Message:
      type: object
      properties:
        id:
          type: string
        conversationId:
          type: string
        contactId:
          type: string
        channel:
          type: string
        direction:
          type: string
          enum: [inbound, outbound]
        messageType:
          type: string
        message:
          type: string
        createdAt:
          type: string
          format: date-time
    SendMessageRequest:
      type: object
      properties:
        contactId:
          type: string
        channel:
          type: string
          description: Channel code such as whatsapp, whatsappcloudapi, facebook, instagram, wechat, line, or sms.
        message:
          type: string
        messageType:
          type: string
      required:
        - contactId
        - channel
        - message
    ConversationWindow:
      type: object
      properties:
        contactId:
          type: string
        isWithinWindow:
          type: boolean
        windowExpiresAt:
          type: string
          format: date-time
    Company:
      type: object
      properties:
        id:
          type: string
        name:
          type: string
        domain:
          type: string
        customFields:
          type: object
          additionalProperties: true
    CompanyInput:
      type: object
      properties:
        name:
          type: string
        domain:
          type: string
        customFields:
          type: object
          additionalProperties: true
      required:
        - name
    Staff:
      type: object
      properties:
        id:
          type: string
        name:
          type: string
        email:
          type: string
        role:
          type: string
        teamIds:
          type: array
          items:
            type: string
    Team:
      type: object
      properties:
        id:
          type: string
        name:
          type: string
        memberCount:
          type: integer
    TeamInput:
      type: object
      properties:
        name:
          type: string
      required:
        - name
    Webhook:
      type: object
      properties:
        id:
          type: string
        url:
          type: string
        events:
          type: array
          items:
            type: string
        status:
          type: string
    WebhookInput:
      type: object
      properties:
        url:
          type: string
        events:
          type: array
          items:
            type: string
            enum:
              - contact.created
              - contact.updated
              - message.received
      required:
        - url
        - events