Token: SACE Index
Ticker: SACE
Creator: Simon Kapenda
Version: 1.4
Date: November 21, 2025
Synthetic African Currency Exchange (SACE) is a blockchain-native BEP-20 token engineered to represent a weighted basket of Africa’s top-performing currencies benchmarked directly to the U.S. Dollar Index (DXY). By creating a synthetic currency index for Africa, SACE delivers a unified benchmark for tracking the continent’s economic strength.
Inspired by the proven model of the DXY, S&P 500, Dow Jones Industrial Averages (DJIA), and NASDAQ 100, SACE offers a transparent, tradable instrument that reflects Africa’s collective economic performance, facilitates cross-border trade, and provides traders and investors a powerful tool for exposure and hedging within the African forex landscape.
SACE is a development brand of Abba Payments Ltd., a wholly-owned subsidiary of Abba Platforms Inc., created by Simon Kapenda, the creator of CillarCoin (CILLAR) — a utility token — and Namibia Digital Dollar (NADD), Namibia's first blockchain-native stablecoin pegged 1:1 to the Namibian Dollar. Simon Kapenda holds a Bachelor of Science degree in Economics from The Ohio State University in Columbus, Ohio, USA, where he graduated in 2008 alongside JD Vance, Vice President of the United States.
SACE serves as:
- A tradable synthetic index paired against USD or other basket currencies.
- A transparent liquidity instrument for African currencies.
- A governance-driven financial infrastructure to track Africa’s overall economic strength, performance, and movement.
The Synthetic African Currency Exchange (SACE) is a BEP-20 token representing a weighted basket of Africa’s top 21 performing national currencies, collectively valued at more than $2.3 trillion USD. SACE is inspired by global benchmarks such as the Dow Jones Industrial Average (DJIA), S&P 500, NASDAQ 100, and the U.S. Dollar Index (DXY). It provides a unified, tradable instrument enabling investors, institutions, and policymakers to track and trade Africa’s collective currency strength through a single token: the SACE Index.
A key structural feature of the SACE Index is that it is benchmarked directly to the U.S. Dollar Index (DXY). The DXY is the world's most widely used measurement of the U.S. dollar's global value, and linking SACE to the DXY provides an internationally recognized anchor. By combining the stability and global relevance of the DXY with the internal weighting of African currency data, SACE creates a new hybrid valuation system that reflects both global and regional economic realities.
SACE is deployed on the BNB Smart Chain (BEP-20) and operates using algorithmic index calculations, decentralized price feeds, and an on-chain Oracle Registry to validate all incoming data. The system continuously monitors Chainlink price feeds, verifies deviation tolerances, and updates the SACE Index only when data meets strict integrity requirements. Historical pricing, transparency, and automated governance ensure that SACE maintains predictable behavior and strong auditability.
The result is the first synthetic digital currency designed for Africa, engineered to be resilient, data-backed, and globally interoperable. SACE functions as a benchmark asset for African macroeconomic value, a collateral-ready instrument for decentralized finance, and a stable medium of exchange for digital commerce across African markets and beyond.
Developed by Simon Kapenda, Founder of Abba Platforms Inc., and creator of CillarCoin (CILLAR) and Namibia Digital Dollar (NADD) (Namibia’s first blockchain-native stablecoin), SACE establishes a digital bridge between Africa’s diverse currency landscape and the global market economy.
By aggregating a weighted basket of 21 African currencies, SACE introduces a new paradigm for cross-border trade efficiency, investment exposure, and currency stability — making it the first synthetic currency index for Africa.
Upon the debut of SACE’s Initial Exchange Offering (IEO), SACE is projected to enter the global digital economy with a valuation exceeding $2.3 trillion USD, positioning Abba Platforms Inc. among the world’s most valuable technology and fintech companies. Each of its 42 founding staff and management members is projected to hold a net worth exceeding $230 million USD, making them among the wealthiest individuals across Africa, the United States, and beyond.
Token Name: SACE Index
Symbol: SACE
Network: BEP-20 (BNB Smart Chain)
SACE Proxy (Main): 0x9F6d0EDc0eB6BBa34F06CeC4fbA7f91bb4600F73
SACE Implementation (Verified): 0xf84D3BA755a5c8FBffb2776948F61676552f39bB
SACE Oracle Registry: 0x96DCdC8C5A5C2B2Fdb5CB1C882234311b2dc797d
SACE Price Updater: 0x8C4A89223af9Ce160927D6Fcbd85e10084eAB7Bc
Official Website: https://sacex.io
GitHub Repo: https://github.com/abba-platforms/SACE
Africa is home to 54 countries with over 40 active currencies, each with unique macroeconomic drivers. SACE aggregates Africa's top 21 performing national currencies, creating a stable and transparent synthetic index to:
- Increase intra-African trade efficiency.
- Provide a unified reference point for African forex.
- Empower financial products and derivatives.
- Enable investors to hedge or gain exposure to African currency movements.
As of October 2025, SACE’s initial basket includes:
| # | Currency |
|---|---|
| 1 | Tunisian Dinar (TND) |
| 2 | Libyan Dinar (LYD) |
| 3 | Moroccan Dirham (MAD) |
| 4 | Ghanaian Cedi (GHS) |
| 5 | Botswana Pula (BWP) |
| 6 | Seychelles Rupee (SCR) |
| 7 | Eritrean Nakfa (ERN) |
| 8 | Namibian Dollar (NAD) |
| 9 | Swazi Lilangeni (SZL) |
| 10 | South African Rand (ZAR) |
| 11 | Lesotho Loti (LSL) |
| 12 | São Tomé and Príncipe Dobra (STN) |
| 13 | Zambian Kwacha (ZMW) |
| 14 | Mauritanian Ouguiya (MRU) |
| 15 | Egyptian Pound (EGP) |
| 16 | Algerian Dinar (DZD) |
| 17 | Mauritian Rupee (MUR) |
| 18 | West African CFA Franc (XOF) |
| 19 | Central African CFA Franc (XAF) |
| 20 | Kenyan Shilling (KES) |
| 21 | Rwandan Franc (RWF) |
- Token Name: SACE Index
- Ticker: SACE
- Total Supply: 100,000,000,000 SACE
- Decimals: 18
- Token Type: BEP-20 Upgradeable
- Initial Mint: All tokens minted to Treasury Wallet upon deployment.
A single wallet address provided at deployment will hold the entire supply. The treasury manages distribution, liquidity, and governance.
SACE uses OpenZeppelin’s Upgradeable BEP-20 implementation, UUPS upgrade pattern, and integrates Chainlink Oracles for real-time currency rate feeds.
- Currency Basket Management — Dynamic add/remove currency logic.
- Weighted Index Calculation — Based on currency weights and rates.
- Deviation Protection — Ensures feed prices do not deviate beyond a configurable threshold.
- Oracle Heartbeat — Ensures price feeds are current.
- Upgradeable Contract — Governance controlled updates.
- Transparent Events — Logs all changes and updates.
SACE integrates Chainlink price feeds for all currencies.
Key features:
- Heartbeat Check: Rejects stale feeds older than configurable time (default: 1 hour).
- Deviation Check: Rejects sudden feed deviations beyond 5% by default.
- Last Valid Price Storage: Maintains resilience against faulty or malicious feeds.
- Feed Validation: Ensures valid feed addresses before updates.
SACE is governance-controlled via an ownership model with recommendations for:
- Timelock mechanisms for sensitive operations.
- Multi-sig wallets for treasury and upgrade control.
- Basket rebalancing governance to adjust weights and currencies.
- Deviation parameter control for Oracle protection.
SACE creates a unified currency index for Africa with significant incentives:
- Market Efficiency: Single tradable instrument for African forex exposure.
- Hedging: Enables investors and institutions to hedge against African currency volatility.
- Liquidity: Increases cross-border liquidity for African currencies.
- Transparency: Provides clear tracking of African currency movements.
The Synthetic African Currency Exchange (SACE) represents a weighted basket of Africa’s top 21 performing currencies, capturing Africa’s collective monetary strength within a single blockchain-based index token.
As of October 2025, the combined estimated value of this 21-currency basket is approximately $2.3 trillion USD.
Based on this aggregate valuation and the maximum supply of 100 billion SACE tokens, the market-derived indicative value of one SACE is estimated at around $23 USD.
This value is not a fixed or imposed price, but rather a proportional reflection of the overall strength and capitalization of Africa’s top currencies relative to the U.S. Dollar (USD).
It provides a transparent benchmark for traders and investors — allowing SACE to naturally price itself in open markets according to currency performance and market demand.
SACE is directly benchmarked to the U.S. Dollar Index (DXY). This means:
- The SACE Basket Index (SBI) is first calculated from the weighted African currency basket.
- The SBI is then normalized against DXY using the formula:
SACE_Index = SBI * (DXY / 100)
This alignment ensures that SACE moves proportionally with African currency strength and U.S. Dollar global strength.
Assumptions:
- 21 African currencies
- USD exchange rate normalization
- Weighted economic contribution
| Currency | USD Rate | Weight (%) | Weighted Contribution |
|----------|----------|------------|------------------------|
| TND | 0.33 | 5 | 0.0165 |
| LYD | 0.21 | 4 | 0.0084 |
| MAD | 0.11 | 5 | 0.0055 |
| GHS | 0.085 | 5 | 0.00425 |
| BWP | 0.079 | 4 | 0.00316 |
| SCR | 0.073 | 3 | 0.00219 |
| ERN | 0.055 | 3 | 0.00165 |
| NAD | 0.053 | 5 | 0.00265 |
| SZL | 0.053 | 3 | 0.00159 |
| ZAR | 0.053 | 6 | 0.00318 |
| LSL | 0.053 | 3 | 0.00159 |
| STN | 0.045 | 3 | 0.00135 |
| ZMW | 0.055 | 4 | 0.0022 |
| MRU | 0.027 | 2 | 0.00054 |
| EGP | 0.032 | 4 | 0.00128 |
| DZD | 0.007 | 2 | 0.00014 |
| MUR | 0.022 | 2 | 0.00044 |
| XOF | 0.0018 | 4 | 0.000072 |
| XAF | 0.0018 | 4 | 0.000072 |
| KES | 0.0068 | 5 | 0.00034 |
| RWF | 0.0011 | 5 | 0.000055 |
Total Weighted Sum (SBI_raw) = 0.05604
Assume:
Current DXY = 104
Normalized SBI = SBI_raw * (DXY / 100)
= 0.05604 * 1.04
= 0.05828
Basket Value = $2,300,000,000,000
Max Supply = 100,000,000,000
Price per SACE = Basket Value * Normalized SBI / Max Supply
= 2.3T * 0.05828 / 100B
≈ $23.69 USD
SBI_raw_new = 0.05604 * 1.05 = 0.05884
Normalized = 0.05884 * 1.04 = 0.06119
Price ≈ $24.36
SBI_raw_new = 0.05604 * 0.95 = 0.05324
Normalized = 0.05324 * 1.04 = 0.05537
Price ≈ $21.43
SACE reflects BOTH:
- The real-time economic strength of Africa’s top 21 performing national currencies
- The global position of the U.S. Dollar via the DXY index
This creates a globally-aligned, transparent, and economically grounded synthetic currency benchmark.
| Year | Low Growth (5%) | Moderate Growth (10%) | High Growth (15%) |
|---|---|---|---|
| 0 | $23.00 | $23.00 | $23.00 |
| 1 | $24.15 | $25.30 | $26.45 |
| 2 | $25.36 | $27.83 | $30.42 |
| 3 | $26.63 | $30.61 | $35.00 |
| 4 | $27.96 | $33.67 | $40.25 |
| 5 | $29.36 | $37.04 | $46.29 |
| 6 | $30.83 | $40.74 | $53.23 |
| 7 | $32.37 | $44.81 | $61.21 |
| 8 | $34.00 | $49.29 | $70.39 |
| 9 | $35.70 | $54.22 | $80.95 |
| 10 | $37.49 | $59.64 | $93.10 |
+------------------------+
| New Chainlink Price |
| Feed Received |
+-----------+------------+
|
v
+-----------+------------+
| Compare with Last Valid |
| Price |
+-----------+------------+
|
+--------------+---------------+
| |
v v
+------------------+ +------------------+
| Within Allowed | | Exceeds Allowed |
| Deviation (<=5%) | | Deviation (>5%) |
+--------+---------+ +--------+---------+
| |
v v
+--------+---------+ +--------+---------+
| Update Last | | Reject Feed |
| Valid Price | | Emit Warning |
| Emit Event | | Maintain Old |
+------------------+ | Last Price |
+------------------+
Flow Explanation:
- New Price Feed: Chainlink submits a new currency rate.
- Deviation Check: Feed compared against last valid price.
- If within threshold (≤5% default): Update the stored last valid price, emit an event for transparency.
- If deviation exceeds threshold: Reject the feed, emit warning, maintain previous valid price for safety.
- Heartbeat Check: Any feed older than 1 hour is automatically rejected to prevent stale data.
This mechanism ensures SACE price integrity, protects against oracle manipulation, and maintains a reliable synthetic currency index.
SACE is positioned to redefine African forex by introducing a single tradable synthetic currency representing Africa’s collective currency strength. It provides a powerful tool for traders, investors, and governments alike to measure, hedge, and trade African currencies in a standardized way.
With its $2.3 trillion valuation, robust technical framework, and visionary governance model, SACE stands as one of Africa’s most ambitious blockchain-based financial innovations — bridging Africa’s economies to global capital markets through transparency, technology, and trust.
Author: Simon Kapenda
Founder & Creator of SACE
Abba Platforms Inc.
Official Website: https://sacex.io
GitHub Repository: https://github.com/abba-platforms/SACE