> ## Documentation Index > Fetch the complete documentation index at: https://docs.paywint.com/llms.txt > Use this file to discover all available pages before exploring further. # Set Default Payee Address > Designate an address as the default for a payee. The default address may be used for: - Paywint card billing purposes - Card issuance - Primary delivery handling - Default compliance reference This endpoint allows you to: - Change the primary address - Ensure consistent operational processing - Override previous default settings Only one address per payee may be designated as default at any time. ## OpenAPI ````yaml PUT /api/user-api/address/payee/set-default openapi: 3.1.0 info: title: paywint version: 0.1.0 servers: - url: https://api.sandbox.paywint.com - url: https://api.paywint.com security: [] paths: /api/user-api/address/payee/set-default: put: tags: - Developer API Address summary: Set Default Payee Address description: |- Designate an address as the default for a payee. The default address may be used for: - Paywint card billing purposes - Card issuance - Primary delivery handling - Default compliance reference This endpoint allows you to: - Change the primary address - Ensure consistent operational processing - Override previous default settings Only one address per payee may be designated as default at any time. operationId: set_default_payee_address_api_user_api_address_payee_set_default_put parameters: - name: X-Api-Key in: header required: true schema: type: string description: >- Your API Key (UUID format). Required to identify and authorize each request title: X-Api-Key description: >- Your API Key (UUID format). Required to identify and authorize each request - name: X-Api-Secret in: header required: true schema: type: string description: >- Secret associated with your API Key. Used for authenticating requests. Keep this secure. title: X-Api-Secret description: >- Secret associated with your API Key. Used for authenticating requests. Keep this secure. requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/UserApiAddressIdRequest' responses: '200': description: Successful Response content: application/json: schema: $ref: >- #/components/schemas/CommonResponse_ExternalContactAddressRead_ '422': description: Validation Error content: application/json: schema: $ref: '#/components/schemas/HTTPValidationError' components: schemas: UserApiAddressIdRequest: properties: payee_id: type: string format: uuid4 title: Payee Id description: Unique identifier for the payee whose addresses are being managed. example: f47ac10b-****-****-****-0e02b2c3d479 address_id: type: string format: uuid4 title: Address Id description: Unique identifier for the payee address record. example: 2d8c5ca1-98cb-42f7-8c1e-70a2b0b8e8f1 type: object required: - payee_id - address_id title: UserApiAddressIdRequest CommonResponse_ExternalContactAddressRead_: properties: success: type: boolean title: Success description: Indicates whether the request was processed successfully. default: true example: true message: type: string title: Message description: >- A short, human-readable message describing the result of the request. default: Success example: Operation completed. data: anyOf: - $ref: '#/components/schemas/ExternalContactAddressRead' - type: 'null' description: The main response payload, if applicable queryGeneratedTime: anyOf: - type: number - type: 'null' title: Querygeneratedtime description: >- The Unix timestamp (in seconds) indicating when the response was generated. default: 1778161546.973489 example: 1718006400 type: object title: CommonResponse[ExternalContactAddressRead] HTTPValidationError: properties: detail: items: $ref: '#/components/schemas/ValidationError' type: array title: Detail type: object title: HTTPValidationError ExternalContactAddressRead: properties: address_id: type: string format: uuid4 title: Address Id description: Unique identifier (UUID) for this address record. example: a1b2c3d4-****-****-****-e5f6g7h8i9j0 fist_name: type: string maxLength: 100 minLength: 2 title: Fist Name description: Recipient's first name. example: John last_name: anyOf: - type: string maxLength: 100 - type: 'null' title: Last Name description: Recipient's last name (optional). example: Doe address_line_1: type: string maxLength: 100 title: Address Line 1 description: Street address including apartment, suite, or unit number. example: 123 Main Street, Apt 4B address_line_2: anyOf: - type: string maxLength: 100 - type: 'null' title: Address Line 2 description: Street address including apartment, suite, or unit number. example: 123 Main Street, Apt 4B company_name: anyOf: - type: string maxLength: 100 - type: 'null' title: Company Name description: Full name of the payee's company. example: Meta Corp city: type: string maxLength: 40 title: City description: City name. example: New York state: type: string maxLength: 30 title: State description: State, province, or region. example: NY zipcode: type: string maxLength: 10 title: Zipcode description: Postal code or ZIP code. example: '10001' country: type: string maxLength: 40 title: Country description: Country name. example: United States is_default: type: boolean title: Is Default description: Mark this address as the default payee address. default: false created_at: type: string format: date-time title: Created At description: ISO 8601 timestamp indicating when this address record was created. example: '2024-01-15T10:30:00Z' updated_at: anyOf: - type: string format: date-time - type: 'null' title: Updated At description: ISO 8601 timestamp indicating when this address record was updated. example: '2024-01-15T10:30:00Z' type: object title: ExternalContactAddressRead ValidationError: properties: loc: items: anyOf: - type: string - type: integer type: array title: Location msg: type: string title: Message type: type: string title: Error Type type: object required: - loc - msg - type title: ValidationError ````