As fintechs grow, they open accounts at multiple banks (SVB, JP Morgan, Barclays). A Treasury Management System (TMS) aggregates these into a single dashboard. For engineers, building a TMS integration layer means dealing with heavy-duty banking protocols like EBICS, SFTP Host-to-Host, and mutual TLS authentication, rather than simple REST APIs.
Connectivity Protocols (EBICS vs API)
APIs: Great for real-time balances, but fragmented. Every bank has a different schema.
EBICS/H2H: The industrial standard. A secure file transport protocol used to fetch camt.053 (End of Day) and camt.052 (Intraday) reports.
Engineering Task: Build an "Aggregator Service" that polls these endpoints, downloads the XMLs, normalizes the data, and updates the central Cash Ledger.
Cash Positioning and Forecasting
The goal of TMS integration is "Cash Positioning."
The View: Aggregating Bank_A_USD + Bank_B_USD + Bank_C_EUR (converted) to show total global liquidity.
The Forecast: Using historical AP/AR data from the ledger to project: "Based on current burn and pending payouts, will we overdraft Account B on Friday?" This allows automated "Sweeping" transfers to cover gaps.
