generated: '2026-07-23' method: searched source: >- https://developer.gs.com/docs/services/transaction-banking/webhooks-intro/, https://developer.gs.com/docs/services/transaction-banking/manage-notifications/ spec_type: Webhooks notes: >- Goldman Sachs Transaction Banking (TxB) documents a webhook / notification surface for real-time, push-based updates so clients stop polling the REST APIs. Captured as a webhook catalog from the published docs — Goldman Sachs does not publish a machine-readable AsyncAPI document, so no AsyncAPI spec is fabricated here. The Marquee/GS Quant analytics surfaces have no event feed. service: Transaction Banking (TxB) transport: HTTPS webhook (provider POSTs to a client-registered endpoint) delivery: >- Notifications are pushed only when a subscribed object changes state, giving fresher data than polling. Payment-status transitions are the primary event class. A Positive Pay / incoming-payment review notification flow is also documented under manage-notifications. event_classes: - name: payment-status-change description: >- Real-time updates as an originated payment moves through its lifecycle (submitted, processing, completed, returned/rejected) across the Fedwire, ACH and SWIFT rails. source: https://developer.gs.com/docs/services/transaction-banking/webhooks-intro/ - name: incoming-payment-notification description: >- Notifications for incoming payments, including Positive Pay review of incoming items. source: https://developer.gs.com/docs/services/transaction-banking/manage-notifications/ security: detail: >- Webhook consumers sit behind the same mTLS + allowlisting trust model as the TxB request APIs; verify delivery authenticity per the TxB integration guide. maintainers: - FN: Kin Lane email: kin@apievangelist.com