> ## Documentation Index
> Fetch the complete documentation index at: https://sendmux.ai/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# List transactions

> Returns paginated credit transaction history with optional type filter. Uses cursor-based pagination ordered by created_at descending — pass `cursor=<next_cursor>` from the previous response to fetch the next page.



## OpenAPI

````yaml /openapi-app.json get /billing/transactions
openapi: 3.1.0
info:
  description: Programmatic access to your Sendmux email infrastructure.
  title: Sendmux API
  version: 1.0.0
servers:
  - description: API v1
    url: https://app.sendmux.ai/api/v1
security:
  - bearerAuth: []
paths:
  /billing/transactions:
    get:
      tags:
        - Billing
      summary: List transactions
      description: >-
        Returns paginated credit transaction history with optional type filter.
        Uses cursor-based pagination ordered by created_at descending — pass
        `cursor=<next_cursor>` from the previous response to fetch the next
        page.
      operationId: managementListTransactions
      parameters:
        - in: query
          name: cursor
          required: false
          schema:
            description: Pagination cursor — the `next_cursor` from the previous response.
            type: string
        - in: query
          name: limit
          required: false
          schema:
            description: Max results (default 25, max 100)
            maximum: 100
            minimum: 1
            type: integer
        - in: query
          name: type
          required: false
          schema:
            enum:
              - PURCHASE
              - USAGE
              - AUTO_TOPUP
              - REFUND
              - ADJUSTMENT
            type: string
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TransactionCursorListResponse'
          description: Transaction list
        '401':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiError'
          description: Authentication required
        '403':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiError'
          description: Insufficient permissions
      security:
        - bearerAuth: []
components:
  schemas:
    TransactionCursorListResponse:
      allOf:
        - $ref: '#/components/schemas/SuccessEnvelope'
        - properties:
            data:
              items:
                $ref: '#/components/schemas/Transaction'
              type: array
            meta:
              $ref: '#/components/schemas/ResponseMeta'
            pagination:
              $ref: '#/components/schemas/CursorPagination'
          required:
            - data
            - pagination
          type: object
      unevaluatedProperties: false
    ApiError:
      additionalProperties: false
      properties:
        error:
          additionalProperties: false
          properties:
            code:
              description: Machine-readable error code
              enum:
                - invalid_parameter
                - missing_parameter
                - authentication_required
                - insufficient_permissions
                - not_found
                - conflict
                - limit_exceeded
                - idempotency_conflict
                - payload_too_large
                - validation_error
                - rate_limit_exceeded
                - service_unavailable
                - internal_error
              example: invalid_parameter
              type: string
            doc_url:
              description: Link to relevant documentation
              type: string
            errors:
              description: >-
                Accumulated per-field issues for validation errors. Only present
                on 400/422 responses.
              items:
                $ref: '#/components/schemas/ApiErrorDetail'
              type: array
            message:
              description: Human-readable error description
              type: string
            param:
              description: The parameter that caused the error
              type: string
            retryable:
              description: >-
                Whether the caller may safely retry this request. 4xx are
                typically false (except 429); 5xx are typically true.
              example: false
              type: boolean
          required:
            - code
            - message
            - retryable
          type: object
        meta:
          additionalProperties: false
          properties:
            request_id:
              example: req_clxxxxxxxxxxxxxxxxxxxxxxxxx
              type: string
          required:
            - request_id
          type: object
        ok:
          enum:
            - false
          type: boolean
      required:
        - ok
        - error
        - meta
      type: object
    SuccessEnvelope:
      properties:
        meta:
          additionalProperties: {}
          properties: {}
          type: object
        ok:
          enum:
            - true
          type: boolean
      required:
        - ok
        - meta
      type: object
    Transaction:
      additionalProperties: false
      properties:
        amount:
          description: DECIMAL(19,6) amount
          example: '-0.001500'
          type: string
        balance_after:
          type:
            - string
            - 'null'
        balance_before:
          type:
            - string
            - 'null'
        created_at:
          description: ISO 8601 timestamp
          type: string
        description:
          type: string
        id:
          description: Transaction public ID
          example: tx_clxxxxxxxxxxxxxxxxxxxxxxxxx
          type: string
        quantity:
          description: Item count (for USAGE transactions)
          type:
            - number
            - 'null'
        type:
          enum:
            - PURCHASE
            - USAGE
            - AUTO_TOPUP
            - REFUND
            - ADJUSTMENT
          type: string
      required:
        - id
        - amount
        - type
        - description
        - quantity
        - balance_before
        - balance_after
        - created_at
      type: object
    ResponseMeta:
      additionalProperties: false
      properties:
        request_id:
          example: req_clxxxxxxxxxxxxxxxxxxxxxxxxx
          type: string
      required:
        - request_id
      type: object
    CursorPagination:
      additionalProperties: false
      properties:
        has_more:
          type: boolean
        next_cursor:
          type: string
      required:
        - has_more
      type: object
    ApiErrorDetail:
      additionalProperties: false
      properties:
        code:
          description: >-
            Machine-readable issue code from the validator (e.g. zod issue
            code).
          example: invalid_string
          type: string
        field:
          description: Dot-path of the offending request field.
          example: recipient.email
          type: string
        message:
          description: Human-readable issue description.
          type: string
      required:
        - field
        - code
        - message
      type: object
  securitySchemes:
    bearerAuth:
      bearerFormat: API Key
      description: >-
        Sendmux API key. Use a root API key for Management API routes, or a
        mailbox credential for Mailbox API routes. Obtain keys from the
        dashboard under API Keys.
      scheme: bearer
      type: http

````