Create bank account (presigned)
Registers a customer’s Mexican bank account (CLABE) for on/off-ramp transactions. The
account field accepts two variants — Personal or Business — auto-detected from the
fields present.
Sandbox: submit XEXX010101000 (personal) or XEX010101000 (business) as the rfc
to skip SPEI provider registration and have the account marked compliant: true
immediately. Any other RFC in sandbox is sent to the SPEI provider’s sandbox as a real
registration and will not auto-approve. Both values are rejected in production.
Note: this endpoint is for customers onboarding through the Etherfuse UI using a
presigned URL. For programmatic creation via API key, use
POST /ramp/customer/{customer_id}/bank-account instead.