Smartlead

Smartlead Master Inbox API

Unified inbox for all campaign communications

GitHub OpenAPI

Operations 6

POST /v1/campaigns/{campaign_id}/reply-email-thread Reply to Email Thread #
POST /v1/campaigns/{campaign_id}/forward-email Forward Email #
POST /v1/master-inbox/sent Get Sent Emails #
POST /v1/master-inbox/inbox-replies Get Inbox Replies #
POST /v1/master-inbox/unread-replies Get Unread Replies #
POST /v1/master-inbox/important Get Important Emails #

Documentation

📖
Documentation
https://api.smartlead.ai/introduction
📖
APIReference
https://api.smartlead.ai/api-reference

Specifications

⚙
OpenAPI
https://raw.githubusercontent.com/api-evangelist/smartlead-ai/refs/heads/main/openapi/smartlead-ai-master-inbox-api-openapi.yml

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OpenAPI Specification

smartlead-ai-master-inbox-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  title: SmartLead Master Inbox API
  version: 1.0.0
  description: '# SmartLead API Documentation


    Welcome to the SmartLead API! SmartLead is a comprehensive cold email outreach platform that helps you manage email campaigns, leads, email accounts, and analytics.


    ## Base URL


    All API requests should be made to:

    ```

    https://server.smartlead.ai/api

    ```


    ## Authentication


    SmartLead uses API keys for authentication. Include your API key as a query parameter in all requests:

    ```

    ?api_key=YOUR_API_KEY

    ```


    You can generate your API key from your SmartLead dashboard under Settings > API Keys.


    ## Rate Limiting


    API requests are rate-limited to ensure fair usage. If you exceed the rate limit, you''ll receive a 429 error.


    ## Support


    For API support, contact support@smartlead.ai or visit https://smartlead.ai

    '
  contact:
    name: SmartLead Support
    email: support@smartlead.ai
    url: https://smartlead.ai
  license:
    name: Proprietary
    url: https://smartlead.ai/terms
servers:
- url: https://server.smartlead.ai/api
  description: Production server
- url: https://staging.smartlead.ai/api
  description: Staging server (for testing)
security:
- ApiKeyAuth: []
tags:
- name: Master Inbox
  description: Unified inbox for all campaign communications
paths:
  /v1/campaigns/{campaign_id}/reply-email-thread:
    post:
      tags:
      - Master Inbox
      summary: Reply to Email Thread
      description: 'Sends a reply to an existing email conversation in a campaign.

        '
      operationId: replyToEmailThread
      parameters:
      - $ref: '#/components/parameters/ApiKeyParam'
      - name: campaign_id
        in: path
        required: true
        schema:
          type: integer
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
              - lead_id
              - message
              properties:
                lead_id:
                  type: integer
                  description: ID of the lead to reply to
                message:
                  type: string
                  description: Reply message content
                attachments:
                  type: array
                  items:
                    type: string
                  description: Array of attachment URLs
      responses:
        '200':
          description: Reply sent successfully
          content:
            application/json:
              schema:
                type: object
                properties:
                  ok:
                    type: boolean
                    example: true
        '401':
          $ref: '#/components/responses/UnauthorizedError'
        '422':
          $ref: '#/components/responses/ValidationError'
        '500':
          $ref: '#/components/responses/InternalServerError'
  /v1/campaigns/{campaign_id}/forward-email:
    post:
      tags:
      - Master Inbox
      summary: Forward Email
      description: 'Forwards an email conversation to another email address.

        '
      operationId: forwardEmail
      parameters:
      - $ref: '#/components/parameters/ApiKeyParam'
      - name: campaign_id
        in: path
        required: true
        schema:
          type: integer
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
              - reply_id
              - forward_to
              properties:
                reply_id:
                  type: integer
                  description: ID of the email to forward
                forward_to:
                  type: string
                  format: email
                  description: Recipient email address
                message:
                  type: string
                  description: Optional message to include
      responses:
        '200':
          description: Email forwarded successfully
          content:
            application/json:
              schema:
                type: object
                properties:
                  ok:
                    type: boolean
                    example: true
        '401':
          $ref: '#/components/responses/UnauthorizedError'
        '422':
          $ref: '#/components/responses/ValidationError'
        '500':
          $ref: '#/components/responses/InternalServerError'
  /v1/master-inbox/sent:
    post:
      tags:
      - Master Inbox
      summary: Get Sent Emails
      description: 'Retrieves sent emails with comprehensive filtering and pagination.

        '
      operationId: getSentEmails
      parameters:
      - $ref: '#/components/parameters/ApiKeyParam'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/InboxFilter'
      responses:
        '200':
          description: Sent emails retrieved successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/InboxResponse'
        '401':
          $ref: '#/components/responses/UnauthorizedError'
        '500':
          $ref: '#/components/responses/InternalServerError'
  /v1/master-inbox/inbox-replies:
    post:
      tags:
      - Master Inbox
      summary: Get Inbox Replies
      description: 'Retrieves all inbox replies with filtering options.

        '
      operationId: getInboxReplies
      parameters:
      - $ref: '#/components/parameters/ApiKeyParam'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/InboxFilter'
      responses:
        '200':
          description: Inbox replies retrieved successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/InboxResponse'
        '401':
          $ref: '#/components/responses/UnauthorizedError'
        '500':
          $ref: '#/components/responses/InternalServerError'
  /v1/master-inbox/unread-replies:
    post:
      tags:
      - Master Inbox
      summary: Get Unread Replies
      description: 'Retrieves all unread replies.

        '
      operationId: getUnreadReplies
      parameters:
      - $ref: '#/components/parameters/ApiKeyParam'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/InboxFilter'
      responses:
        '200':
          description: Unread replies retrieved successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/InboxResponse'
        '401':
          $ref: '#/components/responses/UnauthorizedError'
        '500':
          $ref: '#/components/responses/InternalServerError'
  /v1/master-inbox/important:
    post:
      tags:
      - Master Inbox
      summary: Get Important Emails
      description: 'Retrieves emails marked as important.

        '
      operationId: getImportantEmails
      parameters:
      - $ref: '#/components/parameters/ApiKeyParam'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/InboxFilter'
      responses:
        '200':
          description: Important emails retrieved successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/InboxResponse'
        '401':
          $ref: '#/components/responses/UnauthorizedError'
        '500':
          $ref: '#/components/responses/InternalServerError'
components:
  responses:
    UnauthorizedError:
      description: Unauthorized - Invalid or missing API key
      content:
        application/json:
          schema:
            type: object
            properties:
              message:
                type: string
                example: Invalid API Key
          example:
            message: Invalid API Key
    InternalServerError:
      description: Internal server error
      content:
        application/json:
          schema:
            type: object
            properties:
              error:
                type: string
                example: Internal server error occurred
    ValidationError:
      description: Request validation failed
      content:
        application/json:
          schema:
            type: object
            properties:
              error:
                type: string
                example: Invalid parameters provided
  schemas:
    InboxResponse:
      type: object
      properties:
        messages:
          type: array
          items:
            type: object
        total_count:
          type: integer
    InboxFilter:
      type: object
      properties:
        offset:
          type: integer
          minimum: 0
        limit:
          type: integer
          minimum: 1
          maximum: 20
        filters:
          type: object
          properties:
            search:
              type: string
            campaignId:
              oneOf:
              - type: integer
              - type: array
                items:
                  type: integer
            emailAccountId:
              oneOf:
              - type: integer
              - type: array
                items:
                  type: integer
  parameters:
    ApiKeyParam:
      name: api_key
      in: query
      description: Your SmartLead API key for authentication
      required: true
      schema:
        type: string
      example: REDACTED_STRIPE_KEY
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: query
      name: api_key
      description: 'Your SmartLead API key. You can generate this from your dashboard under Settings > API Keys.


        Include this as a query parameter in all API requests:

        ```

        ?api_key=YOUR_API_KEY

        ```

        '