> ## Documentation Index > Fetch the complete documentation index at: https://docs.cbpayapp.com/llms.txt > Use this file to discover all available pages before exploring further. # Create an on-chain withdrawal > Sends USDT, USDC or BTC on-chain from its own balance. Supported pairs: `tron`/`USDT`, `eth`/`USDT`, `eth`/`USDC`, `btc`/`BTC` (GOLD has no on-chain rail). `amount + withdrawal fee` is debited atomically and held; final state arrives via the `crypto_withdrawal_status_changed` webhook. `failed` refunds the full debit. ## OpenAPI ````yaml /openapi.yaml post /v1/crypto/withdrawals openapi: 3.1.0 info: title: CBPay API version: '1.89' description: | CBPay is a multi-currency payment platform: fiat payouts and collections across Latin America, internal transfers, on-chain funding and withdrawals, and KYC screening. Every account holds four independent virtual balances — USDT (the operating currency), USDC, BTC and GOLD (grams of fine gold) — that never mix or convert automatically. Payouts and service fees can be paid from any of the four balances: set a default with `PUT /v1/settlement` or override per payout with `settlement_asset`. All amounts are decimal strings in each currency's precision (6 decimals for USDT/USDC/GOLD, 8 for BTC). Errors always return `{"error": "", "message": ""}`. servers: - url: https://api.qbank.cl/platform description: Live (production, real money) - url: https://cryptobank.qbank.cl/platform description: Test (sandbox, simulated money — pk_test_ keys) security: - bearerAuth: [] tags: - name: Receipts description: >- Branded PDF receipt per operation, with a public signed-QR authenticity check, receipt_url on every response/webhook and automatic email delivery on final states. - name: Authentication description: Register and log in account members. Sessions last 24 hours. - name: Account description: Profile, members and API keys of the calling account. - name: Balances description: Balances, movement history and FX rates. - name: Payouts description: >- Fiat dispersals debited from the settlement balance of your choice (USDT by default). - name: Payins description: Fiat top-ups credited to the USDT balance. - name: Transfers - name: Contacts - name: Swaps description: >- Free internal transfers between CBPay accounts (person or company, any combination). - name: Crypto description: On-chain funding and withdrawals (TRON, Ethereum and Bitcoin). - name: Segregated wallets description: >- On-chain wallets with their own balance (companies unlimited; persons 1 per network+asset pair) — create, import, send, export the private key and auto-forward. The balance lives on-chain, never in the ledger. - name: QR Crypto POS description: >- Amount-bearing crypto QR charges for processors with physical POS terminals (company accounts): verified merchants, exclusive address + QR per charge, early payment detection, per-merchant reconciliation and refunds over the crypto withdrawal rail. - name: KYC / KYB - name: AML screening description: >- Identity verification: KYC for persons, KYB for companies, with AML screening, rescreening and continuous monitoring. - name: Wallet screening description: >- AML risk assessment of blockchain addresses (sanctions, illicit-fund exposure) with a per-scan fee, plus free automatic protection on withdrawals and deposits. - name: Analytics - name: Webhooks description: Subscriptions to receive signed event notifications. - name: Status description: Service availability. - name: Banking description: >- Real bank accounts: receive, hold and send money over international banking rails. - name: Cards description: >- Virtual and physical cards that spend Just-In-Time from the account's USDT balance, with per-card spending limits. - name: Security (OTP) description: >- One-time verification codes over SMS/WhatsApp/email protecting sensitive actions, plus self-service 2FA preferences. Applies to user sessions only — API keys are exempt. - name: Passkeys description: >- Passwordless sign-in with the device's biometrics (Face ID, Touch ID, Windows Hello, security keys) via WebAuthn, authenticator apps (TOTP) with backup codes, and session/device management. - name: Social login description: >- Passwordless sign up and sign in with Google, Apple, Microsoft and Facebook via token exchange. The front end obtains the provider credential; the API verifies it and issues the CBPay session. paths: /v1/crypto/withdrawals: post: tags: - Crypto summary: Create an on-chain withdrawal description: >- Sends USDT, USDC or BTC on-chain from its own balance. Supported pairs: `tron`/`USDT`, `eth`/`USDT`, `eth`/`USDC`, `btc`/`BTC` (GOLD has no on-chain rail). `amount + withdrawal fee` is debited atomically and held; final state arrives via the `crypto_withdrawal_status_changed` webhook. `failed` refunds the full debit. operationId: createCryptoWithdrawal parameters: - $ref: '#/components/parameters/idempotencyKeyHeader' requestBody: required: true content: application/json: schema: type: object required: - amount properties: chain: type: string enum: - tron - eth - btc default: tron asset: type: string enum: - USDT - USDC - BTC default: USDT description: >- Asset to send (USDC only over `eth`; on `btc` the asset defaults to `BTC`). to_address: type: string to_contact_id: type: string format: uuid description: >- Use the contact's saved address for this chain instead of `to_address` (an explicit `to_address` always wins). amount: type: string description: Positive decimal string, up to 6 decimal places (8 for BTC). idempotency_key: type: string contact_name: type: string description: Name for the auto-saved contact holding this address. save_contact: type: boolean default: true description: >- The address is saved as a contact automatically; send false to skip it. travel_address: type: string description: >- Travel Rule (FATF R.16) — the beneficiary institution's travel address (`ta…` code) for withdrawals above the org threshold towards another institution. The payment address is provided by the receiving institution, so `to_address` can be omitted. wallet_type: type: string enum: - self_hosted description: >- Travel Rule — declare `self_hosted` when the destination is the account holder's own wallet (requires `beneficiary_name`). beneficiary_name: type: string description: >- Travel Rule — name of the destination holder. Required above the threshold (with `travel_address` or `wallet_type=self_hosted`). examples: usdt_tron: summary: USDT over TRON value: chain: tron to_address: TVJ6njG5Fyrq6XwYok3xPQx8kR7HQx6vXk amount: '100.000000' idempotency_key: withdrawal-2026-07-07-a usdc_eth: summary: USDC over Ethereum value: chain: eth asset: USDC to_address: '0x8f3Ba1c2De4567890aBcDeF1234567890aBcDeF1' amount: '50.000000' idempotency_key: withdrawal-usdc-2026-07-09-a btc_bitcoin: summary: BTC over Bitcoin value: chain: btc to_address: bc1qw508d6qejxtdg4y5r3zarvary0c5xw7kv8f3t4 amount: '0.00050000' idempotency_key: withdrawal-btc-2026-07-15-a travel_rule_self_hosted: summary: Above the Travel Rule threshold to an own (self-hosted) wallet value: chain: tron to_address: TVJ6njG5Fyrq6XwYok3xPQx8kR7HQx6vXk amount: '1500.000000' wallet_type: self_hosted beneficiary_name: Maria Perez idempotency_key: withdrawal-2026-07-12-a travel_rule_vasp: summary: Above the threshold to another institution (travel address) value: chain: tron amount: '1500.000000' travel_address: ta2AQSjBotWQf38c8sxYYK2KfisPoMsTPiYkviErEcoSn1uK beneficiary_name: Maria Perez idempotency_key: withdrawal-2026-07-12-b responses: '200': description: Idempotency replay. content: application/json: schema: $ref: '#/components/schemas/CryptoWithdrawal' example: withdrawal_id: 6c5d4e3f-2a1b-0c9d-8e7f-6a5b4c3d2e1f account_id: 9b1deb4d-3b7d-4bad-9bdd-2b0d7b3dcb6d idempotency_key: withdrawal-2026-07-07-a chain: tron asset: USDT to_address: TVJ6njG5Fyrq6XwYok3xPQx8kR7HQx6vXk amount: '100.000000' fee: '1.000000' total_debit: '101.000000' status: processing status_code: '' status_message: broadcasted tx_id: >- b1946ac92492d2347c6235b4d2611184e0f0f8c9d3a1e2b3c4d5e6f708192a3b created_at: '2026-07-07T12:00:00Z' updated_at: '2026-07-07T12:00:00Z' idempotency_hit: true '202': description: Withdrawal accepted and broadcasting. content: application/json: schema: $ref: '#/components/schemas/CryptoWithdrawal' example: withdrawal_id: 6c5d4e3f-2a1b-0c9d-8e7f-6a5b4c3d2e1f account_id: 9b1deb4d-3b7d-4bad-9bdd-2b0d7b3dcb6d idempotency_key: withdrawal-2026-07-07-a chain: tron asset: USDT to_address: TVJ6njG5Fyrq6XwYok3xPQx8kR7HQx6vXk amount: '100.000000' fee: '1.000000' total_debit: '101.000000' status: processing status_code: '' status_message: broadcasted tx_id: >- b1946ac92492d2347c6235b4d2611184e0f0f8c9d3a1e2b3c4d5e6f708192a3b created_at: '2026-07-07T12:00:00Z' updated_at: '2026-07-07T12:00:00Z' '400': $ref: '#/components/responses/BadRequest' '401': $ref: '#/components/responses/Unauthorized' '402': $ref: '#/components/responses/InsufficientFunds' '422': description: The core rejected the withdrawal; the debit was refunded. content: application/json: schema: $ref: '#/components/schemas/CryptoWithdrawal' example: withdrawal_id: 6c5d4e3f-2a1b-0c9d-8e7f-6a5b4c3d2e1f account_id: 9b1deb4d-3b7d-4bad-9bdd-2b0d7b3dcb6d idempotency_key: withdrawal-2026-07-07-a chain: tron asset: USDT to_address: TVJ6njG5Fyrq6XwYok3xPQx8kR7HQx6vXk amount: '100.000000' fee: '1.000000' total_debit: '101.000000' status: failed status_code: core_rejected status_message: destination address is invalid tx_id: '' created_at: '2026-07-07T12:00:00Z' updated_at: '2026-07-07T12:00:00Z' '503': description: >- Withdrawals not enabled for this corridor (`withdrawals_unavailable`). content: application/json: schema: $ref: '#/components/schemas/Error' example: error: withdrawals_unavailable message: on-chain withdrawals are not enabled for this corridor yet components: parameters: idempotencyKeyHeader: name: Idempotency-Key in: header required: false description: Alternative to the `idempotency_key` body field. schema: type: string schemas: CryptoWithdrawal: type: object properties: withdrawal_id: type: string format: uuid account_id: type: string format: uuid idempotency_key: type: string chain: type: string enum: - tron - eth - btc asset: type: string example: USDT to_address: type: string amount: type: string fee: type: string total_debit: type: string status: type: string enum: - pending - processing - completed - failed status_code: type: string status_message: type: string tx_id: type: string travel_rule_status: type: string enum: - not_required - self_hosted_attested - approved description: >- Present when the withdrawal was evaluated against the Travel Rule (FATF R.16) policy. beneficiary_name: type: string description: Declared beneficiary name (Travel Rule withdrawals). created_at: type: string format: date-time updated_at: type: string format: date-time idempotency_hit: type: boolean Error: type: object properties: error: type: string description: Machine-readable error code (snake_case). example: insufficient_funds message: type: string description: Human-readable explanation. responses: BadRequest: description: Invalid request (see `error` code for the specific validation). content: application/json: schema: $ref: '#/components/schemas/Error' example: error: invalid_json message: 'request body is not valid JSON: unknown field' Unauthorized: description: Missing or invalid credential (`unauthorized`). content: application/json: schema: $ref: '#/components/schemas/Error' example: error: unauthorized message: invalid or missing credentials InsufficientFunds: description: Account balance is not enough for this operation (`insufficient_funds`). content: application/json: schema: $ref: '#/components/schemas/Error' example: error: insufficient_funds message: account balance is not enough for this operation securitySchemes: bearerAuth: type: http scheme: bearer description: | Session JWT (from register/login) or API key (`pk_...`). `X-API-Key: ` is accepted as an alternative header. ````