> ## Documentation Index > Fetch the complete documentation index at: https://docs.alphapo.net/llms.txt > Use this file to discover all available pages before exploring further. # Withdraw crypto instantly with conversion > Make an [instant withdrawal](/withdrawals#instant-withdrawals) from a cryptocurrency or fiat balance with conversion to cryptocurrency. ## OpenAPI ````yaml POST /v2/crypto/withdrawal_instant_exchange openapi: 3.0.0 info: title: Merchant Backend V2 version: '1.0' description: Documentation for merchant backend processing endpoints servers: - url: https://app.alphapo.net/api security: - xProcessingKey: [] tags: - name: Status - name: Balance - name: Currencies - name: Deposit addresses - name: Withdrawal - name: Exchange - name: Invoices - name: Transactions paths: /v2/crypto/withdrawal_instant_exchange: post: tags: - Withdrawal summary: Withdraw BTC with conversion from EUR description: >- Make an [instant withdrawal](/withdrawals#instant-withdrawals) from a cryptocurrency or fiat balance with conversion to cryptocurrency. operationId: post-crypto-withdrawal-instant-exchange parameters: - $ref: '#/components/parameters/XProcessingSignatureHeader' requestBody: content: application/json: schema: type: object properties: sender_currency: type: string description: >- Currency to withdraw. For a list of all available currencies, see [API currency codes](/api-reference/currency-codes). received_currency: type: string description: Target currency to convert funds into before sending. sender_amount: type: number description: Amount to withdraw in `sender_currency`. address: type: string description: Cryptocurrency address where you want to send funds. foreign_id: description: Unique ID of the withdrawal request. end_user_reference: $ref: '#/components/schemas/end_user_reference.withdrawals' required: - sender_currency - received_currency - sender_amount - address - foreign_id examples: Withdraw BTC with conversion from EUR: value: sender_currency: EUR received_currency: BTC sender_amount: '100' address: tb1qfdxh6gkfr0qgyatnlkd8khcnxph9tw06n6qwjc foreign_id: withdrawal_123 end_user_reference: user_12345 responses: '201': description: Created content: application/json: schema: type: object properties: data: type: object properties: id: type: integer description: Transaction ID. foreign_id: type: string description: Unique ID of the withdrawal request. end_user_reference: $ref: '#/components/schemas/end_user_reference.withdrawals' type: type: string description: >- Transaction type (always `withdrawal_instant_exchange`). status: type: string description: Transaction status. sender_currency: type: string description: Source currency ISO code. sender_amount: type: string description: Withdrawal amount in `sender_currency`. received_currency: type: string description: Destination currency ISO code. received_amount: type: string description: Amount sent in `received_currency`. examples: Withdraw BTC with conversion from EUR: value: data: id: 134702815 foreign_id: withdrawal_123 end_user_reference: user_12345 type: withdrawal_instant_exchange status: processing sender_currency: EUR sender_amount: '100.00000000' received_currency: BTC received_amount: '0.00153827' '400': description: Bad Request. content: application/json: schema: $ref: '#/components/schemas/ValidationOrMalformedJson' examples: Instant_withdrawals_disabled: summary: Instant withdrawals are disabled value: errors: amount: Instant withdrawals are disabled for this merchant. Instant_withdrawals_not_supported_for_sender_currency: summary: Instant withdrawals are not supported for this currency value: errors: sender_currency: >- Instant withdrawals are not supported for the specified sender_currency. Duplicate foreign_id: summary: Foreign ID already used value: errors: foreign_id: The foreign id has already been taken. Missing required field: summary: Sender currency field is required value: errors: currency: The sender_currency field is required. Invalid address format: summary: Crypto address format invalid value: errors: address: Invalid USDC address Amount below minimum: summary: Amount too small value: errors: amount: The amount must be 5.00000000 USDC. Amount exceeds balance: summary: Insufficient balance value: errors: amount: The requested amount exceeds the available balance. Exchange rate unavailable: summary: Unable to get exchange rate value: errors: amount: >- Unable to exchange the requested amount at the moment. Specify a smaller amount or try again later. Multiple validation errors: summary: Multiple fields failed validation value: errors: sender_currency: The sender_currency field is required. address: The address field is required. sender_amount: The sender_amount must be greater than 0. Malformed JSON: summary: Invalid JSON body value: error: Bad content format code: bad_content_format '403': $ref: '#/components/responses/WithdrawalHeaderAuthorization' components: parameters: XProcessingSignatureHeader: name: X-Processing-Signature in: header required: true description: >- Hex-encoded HMAC-SHA512 signature of the request body, [generated using your secret key](/api-reference/authentication). schema: type: string schemas: end_user_reference.withdrawals: type: string description: > Persistent internal ID of the merchant's customer who initiates the withdrawal. Use the same value for the same customer across all requests. Do not include personal data, such as the customer's name or email address. ValidationOrMalformedJson: oneOf: - type: object title: ValidationError description: One or more request parameters failed validation. properties: errors: type: object additionalProperties: type: string - type: object title: MalformedJson description: >- The request body is not valid JSON or the Content-Type header is not set to `application/json`. properties: error: type: string code: type: string responses: WithdrawalHeaderAuthorization: description: | Forbidden content: application/json: schema: type: object properties: error: type: string description: Human-readable error message. code: type: string description: Error code. description: >- Invalid or missing headers, or withdrawals are disabled for the merchant. Refer to [Errors](/api-reference/errors#403-forbidden) for troubleshooting steps. examples: Bad signature header: value: error: Bad signature header code: bad_header_signature No signature header: value: error: No signature header code: required_header_signature Bad key header: value: error: Bad key header code: bad_header_key No key header: value: error: No key header code: required_header_key Withdrawals disabled: summary: Withdrawals are disabled for this merchant value: error: Withdrawal functionality is currently unavailable code: withdrawal_functionality_unavailable securitySchemes: xProcessingKey: type: apiKey description: Your [API key](/merchant-administration/generate-and-activate-api-keys). in: header name: X-Processing-Key ````