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

# Set automatic use of credit

> Turns automatic use of credit on or off: when on, the credit balance
goes on new and open proformas by itself. Needs `billing.manage`. The
answer has `auto_apply`, and the currency and balance only for a token
that also has `billing.view`.



## OpenAPI

````yaml /api-reference/console/openapi.json put /credit/auto-apply
openapi: 3.1.2
info:
  title: PerfGrid API
  version: 1.0.0
  description: >-
    The PerfGrid customer API. A member creates a token for one billing account
    under *API tokens* in the panel; it can do what both the token's permissions
    and the member's own permissions allow, the same as the panel.


    Send it as `Authorization: Bearer pgapi_...`. Each token may make 120
    requests a minute, of which 30 change something; a `429` response says when
    to try again (`Retry-After`). Ids are the ULIDs the API returns; amounts are
    decimal strings next to their currency; lists are newest first and paged
    with `cursor` (`meta.next_cursor`). Messages are in English, or Danish with
    `Accept-Language: da`.


    The same tokens work with the MCP server at `/mcp` for AI assistants.
servers:
  - url: https://console.perfgrid.com/api/v1
security:
  - http: []
tags:
  - name: Account
  - name: Invoices
  - name: Services
  - name: Domains
  - name: Support
paths:
  /credit/auto-apply:
    put:
      tags:
        - Invoices
      summary: Set automatic use of credit
      description: |-
        Turns automatic use of credit on or off: when on, the credit balance
        goes on new and open proformas by itself. Needs `billing.manage`. The
        answer has `auto_apply`, and the currency and balance only for a token
        that also has `billing.view`.
      operationId: v1.credit.auto-apply
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                enabled:
                  type: boolean
              required:
                - enabled
      responses:
        '200':
          description: ''
          content:
            application/json:
              schema:
                anyOf:
                  - type: object
                    properties:
                      data:
                        type: object
                        properties:
                          auto_apply:
                            type: boolean
                        required:
                          - auto_apply
                    required:
                      - data
                  - type: object
                    properties:
                      data:
                        type: object
                        properties:
                          currency:
                            type: string
                          balance:
                            type: string
                          auto_apply:
                            type: boolean
                        required:
                          - currency
                          - balance
                          - auto_apply
                    required:
                      - data
        '422':
          $ref: '#/components/responses/ValidationException'
components:
  responses:
    ValidationException:
      description: Validation error
      content:
        application/json:
          schema:
            type: object
            properties:
              message:
                type: string
                description: Errors overview.
              errors:
                type: object
                description: A detailed description of each field that failed validation.
                additionalProperties:
                  type: array
                  items:
                    type: string
            required:
              - message
              - errors
  securitySchemes:
    http:
      type: http
      description: >-
        An API token from *API tokens* in the console, sent as `Authorization:
        Bearer pgapi_...`. It works for one billing account, and its permissions
        decide which endpoints it may call.
      scheme: bearer

````

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