| System | Endpoint | Authentication | Data | Mode | Status | |
|---|---|---|---|---|---|---|
| Infosys Finacle · core banking | https://cbs.internal/api/v2 | mTLS certificate | Customers, accounts, transactions | Read-only | Connected | |
| Card management | https://cards.internal/api | OAuth 2.0 client credentials | Cards, tokens | Read-only | Connected | |
| NPSB switch | https://npsb.internal/iso20022 | mTLS certificate | Interbank transfers | Read-only | Connected | |
| goAML (BFIU) | https://goaml.bb.org.bd/api | mTLS certificate | STR / CTR filings | Read + write | Connected | |
| Mobile app backend | https://mobile-api.internal | API key + secret | Channel logs | Read-only | Degraded |