> ## Documentation Index > Fetch the complete documentation index at: https://docs.akua.dev/llms.txt > Use this file to discover all available pages before exploring further. # Link a billing account > Needs `billing.associations.create` on the account too. The account must be in the Workspace Organization and not `CLOSED`; a `PENDING` account may be linked and enables billing once it is `ACTIVE`. ## OpenAPI ````yaml /openapi-public.json put /workspaces/{id}/billing_info openapi: 3.1.0 info: title: Akua API version: 1.0.0 description: >- Manage installs and their asynchronous operations. Authenticate with a session bearer token and select a Workspace using Akua-Context. contact: name: Akua API support email: support@akua.dev url: https://docs.akua.dev/ servers: - url: https://api.akua.dev/v1 security: [] tags: - name: operations - name: installs - name: Organizations - name: Billing accounts - name: workspaces - name: regions - name: Dashboard Overview - name: products - name: offers - name: Order Drafts - name: packages - name: Auth - name: API Tokens - name: Quota adjustments - name: Workspace services - name: Vault connections - name: clusters - name: Node pools - name: Nodes - name: machines - name: Sandboxes - name: OpenCode Servers - name: vaults - name: vaultSecrets paths: /workspaces/{id}/billing_info: put: tags: - Billing accounts summary: Link a billing account description: >- Needs `billing.associations.create` on the account too. The account must be in the Workspace Organization and not `CLOSED`; a `PENDING` account may be linked and enables billing once it is `ACTIVE`. operationId: workspaces.updateBillingInfo parameters: - name: id in: path schema: type: string minLength: 1 maxLength: 53 required: true - name: idempotency-key in: header schema: type: string minLength: 1 maxLength: 64 description: >- Optional caller-supplied idempotency key. Any non-empty key up to 64 characters is accepted. Endpoint-specific documentation describes how the key is used. examples: - create-prod-2026-05-07 required: false requestBody: content: application/json: schema: $ref: '#/components/schemas/UpdateWorkspaceBillingInfoRequest' required: true responses: '200': description: WorkspaceBillingInfo content: application/json: schema: $ref: '#/components/schemas/WorkspaceBillingInfo' '400': description: The request is malformed. content: application/json: schema: $ref: '#/components/schemas/ApiBadRequest' '403': description: The credential may not act in this workspace. content: application/json: schema: $ref: '#/components/schemas/ApiForbidden' '404': description: The resource was not found in this workspace. content: application/json: schema: $ref: '#/components/schemas/ApiNotFound' '409': description: >- The request conflicts with existing resource state or immutable intent. | The resource changed since the etag the client sent; the current etag is in the metadata. | The idempotency key was already used for a different request. content: application/json: schema: anyOf: - $ref: '#/components/schemas/ApiConflict' - $ref: '#/components/schemas/ApiPreconditionFailed' - $ref: '#/components/schemas/ApiIdempotencyConflict' '429': description: The caller is over its per-minute budget. content: application/json: schema: $ref: '#/components/schemas/ApiTooManyRequests' '503': description: The service is temporarily unavailable. content: application/json: schema: $ref: '#/components/schemas/ApiServiceUnavailable' security: - BearerAuth: [] components: schemas: UpdateWorkspaceBillingInfoRequest: type: object properties: billing_account: anyOf: - $ref: '#/components/schemas/BillingAccountName' - type: 'null' required: - billing_account additionalProperties: false WorkspaceBillingInfo: type: object properties: name: type: string examples: - workspaces/ws_j572abc/billingInfo workspace_id: type: string minLength: 2 maxLength: 53 billing_account: anyOf: - $ref: '#/components/schemas/BillingAccountName' - type: 'null' billing_enabled: type: boolean required: - name - workspace_id - billing_account - billing_enabled additionalProperties: false ApiBadRequest: type: object properties: _tag: type: string enum: - Validation success: type: boolean enum: - false errors: type: array prefixItems: - $ref: '#/components/schemas/ApiErrorEntry' minItems: 1 items: $ref: '#/components/schemas/ApiErrorEntry' result: type: object additionalProperties: false required: - _tag - success - errors - result additionalProperties: false ApiForbidden: type: object properties: _tag: type: string enum: - Forbidden success: type: boolean enum: - false errors: type: array prefixItems: - $ref: '#/components/schemas/ApiErrorEntry' minItems: 1 items: $ref: '#/components/schemas/ApiErrorEntry' result: type: object additionalProperties: false required: - _tag - success - errors - result additionalProperties: false ApiNotFound: type: object properties: _tag: type: string enum: - NotFound success: type: boolean enum: - false errors: type: array prefixItems: - $ref: '#/components/schemas/ApiErrorEntry' minItems: 1 items: $ref: '#/components/schemas/ApiErrorEntry' result: type: object additionalProperties: false required: - _tag - success - errors - result additionalProperties: false ApiConflict: type: object properties: _tag: type: string enum: - Conflict success: type: boolean enum: - false errors: type: array prefixItems: - $ref: '#/components/schemas/ApiErrorEntry' minItems: 1 items: $ref: '#/components/schemas/ApiErrorEntry' result: type: object additionalProperties: false required: - _tag - success - errors - result additionalProperties: false ApiPreconditionFailed: type: object properties: _tag: type: string enum: - PreconditionFailed success: type: boolean enum: - false errors: type: array prefixItems: - type: object properties: code: type: number enum: - 7006 message: type: string metadata: type: object properties: current_etag: type: string required: - current_etag allOf: - type: object additionalProperties: type: string required: - code - message - metadata additionalProperties: false maxItems: 1 minItems: 1 result: type: object additionalProperties: false required: - _tag - success - errors - result additionalProperties: false ApiIdempotencyConflict: type: object properties: _tag: type: string enum: - IdempotencyConflict success: type: boolean enum: - false errors: type: array prefixItems: - $ref: '#/components/schemas/ApiErrorEntry' minItems: 1 items: $ref: '#/components/schemas/ApiErrorEntry' result: type: object additionalProperties: false required: - _tag - success - errors - result additionalProperties: false ApiTooManyRequests: type: object properties: _tag: type: string enum: - TooManyRequests success: type: boolean enum: - false errors: type: array prefixItems: - $ref: '#/components/schemas/ApiErrorEntry' minItems: 1 items: $ref: '#/components/schemas/ApiErrorEntry' result: type: object additionalProperties: false required: - _tag - success - errors - result additionalProperties: false ApiServiceUnavailable: type: object properties: _tag: type: string enum: - ServiceUnavailable success: type: boolean enum: - false errors: type: array prefixItems: - $ref: '#/components/schemas/ApiErrorEntry' minItems: 1 items: $ref: '#/components/schemas/ApiErrorEntry' result: type: object additionalProperties: false required: - _tag - success - errors - result additionalProperties: false BillingAccountName: type: string pattern: ^billingAccounts\/bac_[A-Za-z0-9]+$ title: BillingAccountName examples: - billingAccounts/bac_4kQ9mXr2Tz7Lw1 ApiErrorEntry: type: object properties: code: type: integer minimum: -9007199254740991 maximum: 9007199254740991 description: Machine-readable error code examples: - 7002 message: type: string description: Human-readable error message examples: - Resource not found path: type: array items: type: string description: Field path that caused the error, when applicable examples: - - body - name metadata: type: object additionalProperties: type: string required: - code - message additionalProperties: false securitySchemes: BearerAuth: description: Bearer token for the authenticated caller. type: http scheme: bearer ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.