> ## Documentation Index > Fetch the complete documentation index at: https://docs.kemycard.com/llms.txt > Use this file to discover all available pages before exploring further. # Submit Proof of Address > Submits the proof of address of a customer (verified → full) and starts its verification. The document must confirm the address you declared for this customer. Send the file as `multipart/form-data` in the `document` field. Accepted formats: PDF, JPG, PNG — 10 MB maximum. The call is refused when the customer is not `active`, when its KYC is not approved, when a proof of address is already approved, or when one is already being verified. The verification is billed **only when it is approved** (1.80 USD, debited from your `others` ops balance). Submitting a document is free, but your `others` balance must cover the price of one verification. The result is sent to your webhook endpoint (`poa.approved`, `poa.rejected`) and is available through the POA status endpoint. After a rejection you can submit a new document. ## OpenAPI ````yaml POST /poa/{customerCode}/document openapi: 3.1.0 info: title: KemyCard API version: '1.0' description: > KemyCard API allows you to issue virtual and physical cards, manage KYC/POA verification, create crypto wallets, virtual bank accounts, and purchase gift cards. contact: name: KemyCard API Support email: hi@kemycard.com servers: - url: https://api.kemycard.com/v1 description: Production security: - BearerAuth: [] tags: - name: Customers description: Manage your customers - name: Card Products description: Browse the card product catalog - name: Cards description: Issue and manage cards - name: KYC description: Identity verification - name: POA description: Proof of address verification - name: Wallets description: Crypto wallets - name: Virtual Accounts description: Virtual bank accounts - name: Gift Cards description: Gift card catalog and purchases - name: Balance description: Operational balances and transaction history - name: Webhooks description: Webhook endpoints and delivery management paths: /poa/{customerCode}/document: post: tags: - POA summary: Submit proof of address description: > Submits the proof of address of a customer (verified → full) and starts its verification. The document must confirm the address you declared for this customer. Send the file as `multipart/form-data` in the `document` field. Accepted formats: PDF, JPG, PNG — 10 MB maximum. The call is refused when the customer is not `active`, when its KYC is not approved, when a proof of address is already approved, or when one is already being verified. The verification is billed **only when it is approved** (1.80 USD, debited from your `others` ops balance). Submitting a document is free, but your `others` balance must cover the price of one verification. The result is sent to your webhook endpoint (`poa.approved`, `poa.rejected`) and is available through the POA status endpoint. After a rejection you can submit a new document. operationId: submitPoaDocument parameters: - name: customerCode in: path required: true schema: type: string format: uuid description: Customer UUID requestBody: required: true content: multipart/form-data: schema: type: object required: - document properties: document: type: string format: binary description: >- Proof of address (utility bill, bank statement, government letter). PDF, JPG or PNG, 10 MB maximum responses: '201': description: Document received, verification in progress content: application/json: schema: $ref: '#/components/schemas/PoaStatusResponse' '400': $ref: '#/components/responses/InsufficientBalance' '404': $ref: '#/components/responses/NotFound' '422': $ref: '#/components/responses/ValidationError' components: schemas: PoaStatusResponse: type: object properties: success: type: boolean example: true data: type: object properties: customer_code: type: string format: uuid poa_status: type: string enum: - not_started - pending - approved - rejected example: pending verification_level: type: string enum: - basic - verified - full example: verified document_name: type: string nullable: true description: Name of the last file submitted example: electricity-bill.pdf rejection_reason: type: string nullable: true description: Reason given when the document is rejected approved_at: type: string format: date-time nullable: true ErrorResponse: type: object properties: success: type: boolean example: false error: type: object properties: code: type: string example: VALIDATION_ERROR message: type: string example: Missing required fields. details: type: object nullable: true meta: $ref: '#/components/schemas/Meta' Meta: type: object properties: request_id: type: string example: a4f8e2c1b3d97056 mode: type: string enum: - test - live example: test timestamp: type: string format: date-time responses: InsufficientBalance: description: Insufficient ops balance content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' example: success: false error: code: INSUFFICIENT_BALANCE message: Insufficient ops balance. details: required: 50 available: 10 balance_type: cards_mastercard NotFound: description: Resource not found content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' example: success: false error: code: RESOURCE_NOT_FOUND message: Resource not found. details: null ValidationError: description: Validation error content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' securitySchemes: BearerAuth: type: http scheme: bearer description: API key (sk_test_... or sk_live_...) ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.