openapi: 3.0.1
info:
  title: Termii Campaigns API
  description: REST API for the Termii multichannel messaging platform. Send SMS, voice, and WhatsApp messages; generate and verify one-time passwords (OTP) for customer verification; manage sender IDs, campaigns, and contact phonebooks; and retrieve insights such as account balance, message reports, and number status. Every request authenticates with an `api_key` supplied in the JSON request body (for POST/PATCH/DELETE) or as a query parameter (for GET).
  termsOfService: https://termii.com/terms-and-conditions
  contact:
    name: Termii Support
    email: support@termii.com
    url: https://developers.termii.com/
  version: '1.0'
servers:
- url: https://api.ng.termii.com/api
  description: Termii production API (Nigeria region endpoint)
security:
- ApiKeyAuth: []
tags:
- name: Campaigns
  description: Send, list, and manage SMS campaigns.
paths:
  /sms/campaigns/send:
    post:
      operationId: sendCampaign
      tags:
      - Campaigns
      summary: Send a campaign
      description: Send an SMS campaign to all contacts in a phonebook, with optional scheduling and link tracking.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/SendCampaignRequest'
      responses:
        '200':
          description: Campaign created.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GenericMessageResponse'
        '400':
          $ref: '#/components/responses/Error'
  /sms/campaigns:
    get:
      operationId: fetchCampaigns
      tags:
      - Campaigns
      summary: Fetch campaigns
      description: Retrieve all campaigns on the account.
      parameters:
      - $ref: '#/components/parameters/ApiKeyQuery'
      responses:
        '200':
          description: A list of campaigns.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CampaignList'
        '401':
          $ref: '#/components/responses/Error'
  /sms/campaigns/{campaign_id}:
    get:
      operationId: fetchCampaignHistory
      tags:
      - Campaigns
      summary: Fetch campaign history
      description: Retrieve the message history for a single campaign.
      parameters:
      - $ref: '#/components/parameters/CampaignId'
      - $ref: '#/components/parameters/ApiKeyQuery'
      responses:
        '200':
          description: Campaign history.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CampaignHistory'
        '401':
          $ref: '#/components/responses/Error'
    patch:
      operationId: retryCampaign
      tags:
      - Campaigns
      summary: Retry a campaign
      description: Retry sending a previously created campaign.
      parameters:
      - $ref: '#/components/parameters/CampaignId'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ApiKeyBody'
      responses:
        '200':
          description: Campaign retry accepted.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GenericMessageResponse'
        '400':
          $ref: '#/components/responses/Error'
components:
  parameters:
    ApiKeyQuery:
      name: api_key
      in: query
      required: true
      schema:
        type: string
      description: Your API key from the Termii dashboard.
    CampaignId:
      name: campaign_id
      in: path
      required: true
      schema:
        type: string
      description: Unique identifier of the campaign.
  schemas:
    ApiKeyBody:
      type: object
      required:
      - api_key
      properties:
        api_key:
          type: string
          description: Your API key from the Termii dashboard.
    Campaign:
      type: object
      properties:
        campaign_id:
          type: string
        phone_book:
          type: string
        sender:
          type: string
        camp_type:
          type: string
        channel:
          type: string
        total_recipients:
          type: integer
        run_at:
          type: string
        status:
          type: string
        created_at:
          type: string
    CampaignHistory:
      type: object
      properties:
        current_page:
          type: integer
        data:
          type: array
          items:
            type: object
            properties:
              id:
                type: integer
              sender:
                type: string
              receiver:
                type: string
              message:
                type: string
              status:
                type: string
              sms_type:
                type: string
              send_at:
                type: string
        total:
          type: integer
    CampaignList:
      type: object
      properties:
        current_page:
          type: integer
        data:
          type: array
          items:
            $ref: '#/components/schemas/Campaign'
        total:
          type: integer
    SendCampaignRequest:
      type: object
      required:
      - api_key
      - country_code
      - sender_id
      - message
      - channel
      - message_type
      - phonebook_id
      - campaign_type
      - schedule_sms_status
      properties:
        api_key:
          type: string
        country_code:
          type: string
          description: ISO 3166-1 alpha-2 country code.
        sender_id:
          type: string
        message:
          type: string
        channel:
          type: string
          enum:
          - dnd
          - generic
          - whatsapp
        message_type:
          type: string
          enum:
          - plain
          - unicode
        phonebook_id:
          type: string
        campaign_type:
          type: string
        schedule_sms_status:
          type: string
          enum:
          - scheduled
          - instant
        enable_link_tracking:
          type: string
          description: Optional. Enable click tracking on links in the campaign.
        schedule_time:
          type: string
          description: Optional. Time to send a scheduled campaign.
    ErrorResponse:
      type: object
      properties:
        message:
          type: string
          description: Human-readable error message.
    GenericMessageResponse:
      type: object
      properties:
        message:
          type: string
  responses:
    Error:
      description: Error response.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: query
      name: api_key
      description: Termii authenticates every request with an api_key. For GET requests it is passed as the api_key query parameter; for POST, PATCH, and DELETE requests it is included in the JSON request body.