> ## Documentation Index > Fetch the complete documentation index at: https://docs.etherfuse.com/llms.txt > Use this file to discover all available pages before exploring further. # Create bank account (presigned URL) > Registers a customer's Mexican bank account (CLABE) for on/off-ramp transactions. The `account` field accepts two variants — Personal or Business — auto-detected based on the fields present. **Note:** This endpoint is intended for customers onboarding through the Etherfuse UI using a presigned URL. For programmatic bank account creation via API key, use `POST /ramp/customer/{customer_id}/bank-account` instead. ## OpenAPI ````yaml /openapi.yaml post /ramp/bank-account openapi: 3.1.0 info: title: FX API version: 1.0.0 description: > API for managing FX operations including onboarding, quotes, orders, and customer management. This API provides endpoints for managing customers, bank accounts, crypto wallets, orders, and webhooks. servers: - url: https://api.etherfuse.com description: Production API - url: https://api.sand.etherfuse.com description: Sandbox API (for testing) security: [] tags: - name: Lookup description: Public endpoints for looking up stablebond and exchange rate data - name: Assets description: Get available assets for ramping - name: Onboarding description: Customer onboarding and KYC - name: Bank Accounts description: Manage customer bank accounts - name: Agreements description: Handle customer agreements and consents - name: Quotes description: Get quotes for conversions - name: Orders description: Create and manage orders - name: Swaps description: Create and manage swaps - name: Customers description: Manage customers - name: Crypto Wallets description: Manage crypto wallets - name: Webhooks description: Manage webhook subscriptions - name: Organizations description: Manage organizations and child organizations paths: /ramp/bank-account: post: tags: - Bank Accounts summary: Create bank account (presigned URL) description: > Registers a customer's Mexican bank account (CLABE) for on/off-ramp transactions. The `account` field accepts two variants — Personal or Business — auto-detected based on the fields present. **Note:** This endpoint is intended for customers onboarding through the Etherfuse UI using a presigned URL. For programmatic bank account creation via API key, use `POST /ramp/customer/{customer_id}/bank-account` instead. requestBody: required: true content: application/json: schema: type: object required: - presignedUrl - account properties: presignedUrl: type: string description: Presigned URL for verification account: $ref: '#/components/schemas/AccountRegistration' skipAutoApproval: type: boolean default: false description: If true, skips automatic approval in sandbox environments label: type: string description: Optional display label for the account responses: '200': description: Bank account created successfully content: application/json: schema: $ref: '#/components/schemas/BankAccount' '400': description: Invalid request parameters content: application/json: schema: $ref: '#/components/schemas/Error' components: schemas: AccountRegistration: oneOf: - $ref: '#/components/schemas/PersonalAccountRegistration' - $ref: '#/components/schemas/BusinessAccountRegistration' description: > Bank account registration data. Accepts either Personal or Business format. The variant is auto-detected based on the fields present (untagged union). BankAccount: type: object properties: bankAccountId: type: string format: uuid description: Unique identifier for the bank account. Must be a valid UUID v4. customerId: type: string format: uuid description: ID of the customer who owns this bank account createdAt: type: string format: date-time description: Timestamp when the bank account was created updatedAt: type: string format: date-time description: Timestamp when the bank account was last updated deletedAt: type: string format: date-time nullable: true description: Timestamp when the bank account was deleted (if applicable) abbrClabe: type: string description: Abbreviated CLABE number for the bank account etherfuseDepositClabe: type: string nullable: true description: Etherfuse deposit CLABE number label: type: string nullable: true description: Custom label for the bank account compliant: type: boolean description: >- Whether the bank account is compliant. This is a derived value — true if the account has been explicitly marked compliant OR if the owning organization is approved (KYB'd). status: type: string enum: - pending - awaitingDepositVerification - active - inactive description: Current status of the bank account example: bankAccountId: 123e4567-e89b-12d3-a456-426614174000 customerId: 123e4567-e89b-12d3-a456-426614174001 createdAt: '2024-01-01T00:00:00Z' updatedAt: '2024-01-01T00:00:00Z' abbrClabe: 1234...5678 compliant: true status: active Error: type: object properties: error: type: string description: Error message example: error: Invalid request parameters PersonalAccountRegistration: type: object description: Personal bank account registration data required: - transactionId - firstName - paternalLastName - maternalLastName - birthDate - curp - rfc - clabe properties: transactionId: type: string format: uuid description: Unique transaction ID for this registration firstName: type: string description: Account holder's first name paternalLastName: type: string description: Account holder's paternal last name maternalLastName: type: string description: Account holder's maternal last name birthDate: type: string description: Date of birth in YYYYMMDD format example: '19900101' birthCountryIsoCode: type: string description: >- ISO 3166-1 alpha-2 country code for birth country. Defaults to MX if omitted. example: MX birthCountryId: type: string description: Legacy numeric country ID. Prefer birthCountryIsoCode instead. deprecated: true curp: type: string description: Mexican CURP (Clave Única de Registro de Población) rfc: type: string description: Mexican RFC (Registro Federal de Contribuyentes) clabe: type: string description: >- 18-digit CLABE number (digits only, no letters or special characters) example: transactionId: 123e4567-e89b-12d3-a456-426614174000 firstName: Juan paternalLastName: García maternalLastName: López birthDate: '19900101' birthCountryIsoCode: MX curp: GALJ900101HDFRRN09 rfc: GALJ9001016V3 clabe: '012345678901234567' BusinessAccountRegistration: type: object description: Business bank account registration data required: - transactionId - name - incorporatedDate - rfc - clabe properties: transactionId: type: string format: uuid description: Unique transaction ID for this registration name: type: string description: Business legal name countryIsoCode: type: string description: ISO 3166-1 alpha-2 country code. Defaults to MX if omitted. example: MX countryId: type: string description: Legacy numeric country ID. Prefer countryIsoCode instead. deprecated: true incorporatedDate: type: string description: Date of incorporation in YYYYMMDD format example: '20100315' rfc: type: string description: Mexican RFC (Registro Federal de Contribuyentes) clabe: type: string description: >- 18-digit CLABE number (digits only, no letters or special characters) ````