Create External Account

Create and register a new external bank account for a specific customer.

⚠️ Important: Customer's Own Account Only

• This endpoint is exclusively for adding the customer's own bank account
• Do NOT use this endpoint to add third-party or recipient bank accounts
• For adding recipient/beneficiary bank accounts, use the Recipients API instead
• Incorrect account holder information may result in failed or delayed transfers

Functionality:

• Registers a new external bank account that can be used for fiat withdrawals
• Supports multiple bank networks: US Fedwire, US ACH, and SWIFT international wires
• Automatically assigns a unique external_account_id upon successful creation

Idempotency & Duplicate Detection:

• Required: Include an Idempotency-Key header with a unique UUID for each new account creation