API Structure Overview

Nexus would provide the following APIs:
SLD (Service Level Description)
  • Allows IPSs to update Service Level Descriptions
  • Allows Source Banks to request SLDs
  • Allows FX Providers to issue or delete quotes
  • Allows Source Banks to retrieve quotes
  • Allows Source Bank to validate accounts
  • Triggers sub-processes: Alias conversion, Reachability check, Availability check, Account validation
  • Allows Source Bank to request Confirmation of Payee
Sanctions Screening Pre-Approval
  • Allows Source Bank to trigger sanctions screening pre-approval process
RFI (Request for Information)
  • Allows one bank (Source Bank, Destination Bank or Liquidity Providers) to request information on a Sender from Source Bank or Recipient from Destination Bank
Relaying messages between Nexus Gateways
This document does not specify communication from one Nexus Gateway to another, as in most cases the receiving Gateway will simply relay a message with no fundamental changes to the Gateway that needs to process it.