All Institutional APIs require onboarding through your Account Manager. See the Institutional overview for use cases and access requirements.
OTC
Off-book block trading with negotiated quotes — request, accept, and reconcile large trades.OTC REST
Quote requests, active and historical quotes, exposures.
Custody
Programmatic management of segregated wallets, deposits, withdrawals, and reconciliation.Custody REST
Vaults, balances, deposit/withdraw methods, custody tasks and activities.
Prime
Institutional brokerage with three protocol surfaces against the same Prime accounts and keys.Prime REST
API-user management, key lifecycle, and settlement batches.
Prime FIX
FIX 4.4 order management and market data — co-located, deterministic.
Prime WebSocket
Real-time order events, balances, exposures, and RFQ flows.
Not sure where to start?
Custody REST authentication
Authenticate requests to the Custody REST API.
Prime WebSocket authentication
Authenticate and subscribe to Prime WebSocket channels.