Case study on digital currency and stablecoin settlement across West Africa's emerging corridors — Nigeria eNaira/cNGN, Ghana e-Cedi, Senegal/WAEMU, and ECCU DCash. Architecture viability, settlement economics vs correspondent banking, FATF compliance overlay. For live corridor modelling, use the AINumbers emerging-market-fx-corridor chain ↗.
Operational status of CBDC and stablecoin instruments in the four-zone ecosystem as of mid-2026.
Settlement architecture options scored across cost, finality, Herstatt risk, and regulatory readiness. Results are corridor-specific; the Nigeria → Ghana pair is used as the base case.
| Architecture | All-in cost | Settlement | Herstatt risk | Corridor fit (NG→GH) |
|---|---|---|---|---|
| Nostro correspondent Current state |
7.5–9.8% | T+2 to T+3.5 | 48–72 h window | High cost, operational |
| cNGN stablecoin NGN-pegged, on-chain |
1.2–1.8% | 45–90 s | Eliminated (PvP) | Best near-term option |
| CBDC bridge BIS Agorá pattern |
0.6–1.0% | 8–15 s | Eliminated (PvP) | e-Cedi paused — not viable |
| Hybrid rail cNGN + nostro fallback |
1.0–1.4% | 15–45 s | Low | Recommended — resilience |
All-in cost and D+0 feasibility for four priority corridor pairs on digital currency vs correspondent rails.
Travel Rule applicability, VASP registration requirements, and AML obligations by instrument type across the four zones.
| Instrument | FATF category | Travel Rule (≥$1K) | Originator / beneficiary data | AML obligation |
|---|---|---|---|---|
| eNaira / DCash Retail CBDC |
Central bank liability | Exempt (central bank) | Collected via CBN/ECCB rails | National AML law applies |
| cNGN stablecoin Private stablecoin |
VASP / VA | Applies — R.16 compliant needed | Originator name, account, address | VASP registration + KYC/AML |
| Nostro correspondent | Bank-to-bank | SWIFT MX / MT103 covers | Full SWIFT field set | De Larosière / Basel AML matrix |
Nigeria was removed from the FATF grey list in October 2023. Cross-border VASP transfers from Nigerian entities to ECCU (a non-FATF jurisdiction) require enhanced due diligence on the ECCU receiving side for transfers above $3K threshold. DCash, as a central-bank instrument, bypasses VASP Travel Rule but still requires originator data collection at the ECCB level under national AML law.
The AINumbers emerging-market-fx-corridor chain sequences all eight tools referenced in this case study — T58, T75, T157, T217, T218, T220, T221, T325 — and exports a composite Policy Mandate. Use it to run your own corridor inputs against the same analytical framework.
West Africa’s digital payment landscape is rapidly evolving — eNaira, cNGN, and regional interoperability frameworks are advancing. If you’re a commercial bank, central bank, or fintech evaluating West Africa corridor strategy, let’s talk specifics.
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