Configure and consume Treasury Prime BaaS APIs to open customer accounts, originate payments, and manage KYC status

Steps

1. Complete Treasury Prime partner onboarding to determine your account model — on-core (customer accounts opened directly on the partner bank's core, with the bank managing compliance) or FBO (a single umbrella account on the bank's core with you managing a virtual sub-ledger for end-user balances); the choice determines the API flows for account creation and the compliance ownership model
2. For FBO model, create a Treasury Prime FBO account through your bank relationship setup; then create virtual customer accounts via the Treasury Prime accounts API, providing customer name, address, and your KYC approval status for each customer
3. Submit KYC verification data for each customer through the Treasury Prime identity verification flow; the API returns a KYC status (approved, denied, review) that gates account activation — you may integrate your own KYC provider and pass results to Treasury Prime or use their embedded verification
4. Originate an ACH payment by creating a payment object via the Treasury Prime payments API, specifying the source account, destination routing number and account number, amount, and direction (debit or credit); for wire transfers, use the wire payment endpoint with beneficiary bank details
5. Subscribe to Treasury Prime webhooks to receive real-time status updates for account creation, KYC status changes, payment state transitions, and returns; webhook events include the relevant object ID for correlation with your records
6. Use the Treasury Prime balance endpoint to retrieve current available balance for each customer account; for FBO model, reconcile the sum of all virtual customer balances against the physical FBO account balance at the bank to detect any ledger drift