Token: SACE Index
Ticker: SACE
Token Type: BEP-20 Upgradeable
Total Supply: 100,000,000,000 SACE
Creator: Simon Kapenda
Version: 1.1
Date: October 6, 2025
Updated: November 21, 2025

The Synthetic African Currency Exchange (SACE) smart contract has been successfully deployed to the BNB Smart Chain (Mainnet). SACE represents a weighted basket of Africa’s top 21 performing national currencies — with a combined valuation exceeding $2.3 trillion USD — tokenized into a single, tradable BEP-20 digital asset—the SACE Index— and benchmarked directly to the U.S. Dollar Index (DXY).

Deployment Details:

• Network: BNB Smart Chain (Mainnet)
• SACE Proxy Address (Main): 0x9F6d0EDc0eB6BBa34F06CeC4fbA7f91bb4600F73
• SACE Implementation (Verified): 0xf84D3BA755a5c8FBffb2776948F61676552f39bB
• SACE Oracle Registry: 0x96DCdC8C5A5C2B2Fdb5CB1C882234311b2dc797d
• SACE Price Updater: 0x8C4A89223af9Ce160927D6Fcbd85e10084eAB7Bc
• Standard: BEP-20 (Upgradeable Proxy via OpenZeppelin)

SACE Index provides a unified benchmark for Africa’s collective currency strength, enabling efficient trading, hedging, and cross-border commerce.

SACE has chosen to conduct its first Initial Exchange Offering (IEO) on P2B Exchange. This IEO will begin with 300 million SACE tokens, priced at $23 USD per token, based on the weighted basket of Africa's top 21 performing national currencies (combined gross value: $2.3 trillion USD).

For full details, see the SACE IEO Listing Framework.

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. Benchmarked directly to the U.S. Dollar Index (DXY), SACE is inspired by global benchmarks such as the Dow Jones Industrial Average (DJIA), S&P 500, NASDAQ 100, and the 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.

SACE consolidates Africa’s top 21 currencies into a single tradable instrument, creating a transparent benchmark for the continent’s currency performance. It enhances market efficiency, improves liquidity, enables effective hedging against currency volatility, and facilitates cross-border trade — positioning SACE as a foundational economic tool for Africa’s growing financial ecosystem.

Additionally, the SACE Index is benchmarked directly to the U.S. Dollar Index (DXY), ensuring that its valuation aligns with globally recognized macroeconomic standards. This integration provides greater stability, reduces single-currency dependency, and enhances international investor confidence by anchoring SACE to a diversified basket of major world currencies rather than a single USD peg.

SACE is a development brand 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. Together, SACE, CILLAR, and NADD form the foundation of Abba Platforms’ digital asset ecosystem — advancing Africa’s financial inclusion, liquidity, and cross-border economic integration through blockchain innovation.

The Synthetic African Currency Exchange (SACE) Whitepaper provides a complete overview of SACE as a BEP-20 blockchain token representing a weighted basket of Africa’s top 21 performing currencies, with a combined valuation exceeding $2.3 trillion USD.

Key highlights include:

• Key Structural Feature: The SACE Index is benchmarked directly to the U.S. Dollar Index (DXY).
• Valuation Model: Starting indicative value of ~$23 per SACE token based on the African currency basket.
• Tokenomics: Max supply of 100 billion SACE tokens, treasury-controlled distribution, and governance mechanisms.
• Technical Overview: Upgradeable UUPS proxy, Chainlink oracle integration, deviation protection, and transparent events.
• Economic Impact: Facilitates cross-border trade, improves liquidity, provides hedging against currency volatility, and serves as a benchmark for Africa’s macroeconomic performance.
• Governance: Multi-sig treasury, timelocks, and basket rebalancing mechanisms for secure, community-driven upgrades.
• Strategic Insight: Tracks Africa’s top currency performance similarly to DJIA, S&P 500, and NASDAQ 100 for the U.S. market.

For the full Whitepaper, visit: SACE_Whitepaper.md

SACE is designed to:

• Create a synthetic index representing Africa’s currency performance.
• Enable cross-border trade and exposure to African forex.
• Serve as a transparent benchmark for African currency movements.
• Provide traders and investors with a single tradable instrument.

As of October 2025, the SACE Currency Basket Index includes the following Africa's top performing currencies:

The Synthetic African Currency Exchange (SACE) is deployed on BNB Smart Chain (Mainnet) and operates through a verifiable, upgradeable contract architecture designed for transparency, real-time data accuracy, and investor trust.

Core Contracts:

• SACE Proxy (Main Contract): 0x9F6d0EDc0eB6BBa34F06CeC4fbA7f91bb4600F73
• SACE Implementation: 0xf84D3BA755a5c8FBffb2776948F61676552f39bB
• SACE Oracle Registry: 0x96DCdC8C5A5C2B2Fdb5CB1C882234311b2dc797d
• SACE Price Updater: 0x8C4A89223af9Ce160927D6Fcbd85e10084eAB7Bc

SACE uses a hybrid oracle system combining Chainlink’s on-chain data feeds (for major currencies like ZAR) and SACE’s Hybrid Feeds (for other African currencies). The Hybrid Feeds aggregate real-time market data from sources such as OANDA, XE, and Investing.com, which are validated and published on-chain every hour. This ensures accurate, transparent, and verifiable price updates — all visible on BscScan.

The upgradeable UUPS Proxy model allows the SACE protocol to evolve without changing its main contract address, ensuring both stability for users and flexibility for future innovation. Every feed update, logic change, and timestamp is recorded immutably on-chain, allowing investors and traders to independently verify that SACE operates with full transparency.

📄 Full technical explanation and interaction diagram:
See SACE_CONTRACTS_SUMMARY.md

The SACE Price Feed System provides reliable and upgradeable price feeds for SACE and related assets, using a UUPS proxy architecture that supports both Chainlink and hybrid feed types.

For full details, architecture diagrams, and currency feed structure, see SACE_CONTRACT_FLOW.md.

The SACE System Architect is composed of the SACE Proxy & Implementation, together with SACEOracleRegistry and SACEPriceUpdater, with Security and Governance enforced via a Gnosis Safe multisig controlling all critical operations. It includes a System Flow Diagram providing an end-to-end overview of the oracle → updater → proxy pipeline. For the complete architecture, detailed deployment information, and flow diagrams, see the full documentation: SACE_SYSTEM_ARCHITECT.md

As the Synthetic African Currency Exchange (SACE) representing a weighted basket of Africa’s top 21 performing currencies, the combined estimated value of this basket is approximately $2.3 trillion USD, as of October 2025.

With a max supply of 100 billion SACE tokens, the starting market price is approximately $23 USD per SACE — determined by market conditions to reflect the proportional value of the underlying currency basket.

For a full in-depth analysis, valuation breakdown, and long-term growth projections, see the dedicated document:
📄 SACE_BASKET_VALUE.md

SACE is benchmarked against the U.S. Dollar Index (DXY) rather than a single U.S. Dollar.
This pairing anchors SACE’s value to the real-world strength of the U.S. Dollar relative to a basket of major global currencies — EUR, JPY, GBP, CAD, SEK, and CHF.

Through its on-chain, upgradeable UUPS architecture, SACE integrates DXY price feeds from trusted oracles to ensure transparency, macroeconomic stability, and alignment with global market movements.

For a complete technical breakdown, see the SACE_BENCHMARK.md document in this repository.

The Synthetic African Currency Exchange (SACE) is a BEP-20 token representing a weighted basket of Africa’s top 21 currencies, collectively valued at $2.3 trillion USD. SACE offers a unified, tradable benchmark for Africa’s currency strength, enhances market efficiency, and facilitates cross-border trade.

• Max Supply: 100 Billion SACE
• IEO Allocation: 2.5 Billion SACE
• Token Price: $23 per SACE

For full details on tokenomics, IEO framework, distribution, utility, and governance, see the SACE TOKENOMICS & IEO FRAMEWORK document.

An independent analytical report, modeled after McKinsey & Company and PwC standards, provides an in-depth financial and strategic evaluation of the Synthetic African Currency Exchange (SACE). The review explains the foundation of SACE’s $2.3 trillion USD FDV, linking it to Africa’s aggregated GDP and its role as the world’s first pan-African synthetic currency exchange.
See full report: SACE_PROJECT_INDEPENDENT_REVIEW.md

SACE uses OpenZeppelin’s Upgradeable BEP-20 implementation with the UUPS upgrade pattern and integrates Chainlink Oracles for real-time currency rate feeds.

Key features:

• Currency Basket Management — dynamic add/remove currency logic.
• Weighted Index Calculation — based on currency weights and rates.
• Deviation Protection — rejects outlier price feeds.
• Oracle Heartbeat — ensures feeds are up-to-date.
• Upgradeable Contract — governance controlled updates.
• Transparent Events — logs all updates and changes.

The Synthetic African Currency Exchange (SACE) creates a unique economic instrument that aggregates the strength of Africa’s top currencies into a single tradable token. By doing so, SACE addresses key economic challenges:

• Market Efficiency: Simplifies exposure to African currencies, reducing the complexity of multi-currency forex trading.
• Liquidity Creation: Consolidates liquidity for African currencies, making them more accessible to global investors.
• Hedging Tool: Provides a standardized way for investors, businesses, and governments to hedge against currency volatility.
• Transparency: Offers a clear benchmark for Africa’s collective currency performance, promoting informed economic decisions.
• Trade Facilitation: Supports cross-border trade by reducing currency conversion friction and providing a stable reference currency.

In effect, SACE functions as Africa’s currency performance index, much like the DXY for the U.S. dollar, and has the potential to become a core instrument in the continent’s financial ecosystem.

This repository contains all key documentation and resources for the Synthetic African Currency Exchange (SACE) project.

• Node.js v18+
• Hardhat
• Yarn or npm
• MetaMask or similar wallet
• Binance Smart Chain (BSC) testnet/mainnet access

git clone https://github.com/yourusername/SACE.git
cd SACE
yarn install

npx hardhat compile

npx hardhat run scripts/deploy.js --network bsctestnet

npx hardhat test

For the full technical and economic details, see the SACE Whitepaper.

This repository is licensed under the MIT License. See the LICENSE file for details.