AFXO — Emerging Markets FX Oracle

Institutional-grade FX data infrastructure for emerging markets. Multi-source aggregation, AI quality control, and on-chain delivery for DeFi protocols and financial institutions.

Overview

AFXO provides reliable, verifiable FX rates for 27+ currencies that existing oracles don't adequately cover — including African, Middle Eastern, and Asian emerging market currencies.

Key Features

• Multi-Source Aggregation — Rates aggregated from 10+ institutional data sources per currency
• AI Quality Control — ML-powered anomaly detection and confidence scoring
• On-Chain Delivery — Avalanche C-Chain as canonical root, expanding to Celo, Base, Arbitrum, Solana
• Industry-Standard Interface — Drop-in compatible with existing DeFi protocols
• Decentralized Verification — Multi-operator consensus before any rate is published

Supported Currencies (27 Live on Testnet)

East Africa

Code	Currency
KES	Kenyan Shilling
ETB	Ethiopian Birr
TZS	Tanzanian Shilling
UGX	Ugandan Shilling
RWF	Rwandan Franc

West Africa

Code	Currency
NGN	Nigerian Naira
GHS	Ghanaian Cedi
XOF	CFA Franc (BCEAO)

Central Africa

Code	Currency
CDF	Congolese Franc
XAF	CFA Franc (BEAC)
AOA	Angolan Kwanza

Southern Africa

Code	Currency
ZAR	South African Rand
ZMW	Zambian Kwacha
MWK	Malawian Kwacha
MZN	Mozambican Metical
BWP	Botswana Pula
SZL	Swazi Lilangeni
LSL	Lesotho Loti

North Africa

Code	Currency
EGP	Egyptian Pound
MAD	Moroccan Dirham
DZD	Algerian Dinar
TND	Tunisian Dinar

Trade Partner Reference Currencies

Code	Currency
AED	UAE Dirham
INR	Indian Rupee
CNY	Chinese Yuan
EUR	Euro
GBP	British Pound

Quick Start

Solidity Integration

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.19;

import "./interfaces/IAFXOOracle.sol";

contract MyProtocol {
    IAFXOOracle public kesOracle;

    constructor(address _kesOracle) {
        kesOracle = IAFXOOracle(_kesOracle);
    }

    function getKESPrice() external view returns (int256) {
        (
            ,
            int256 price,
            ,
            uint256 updatedAt,
        ) = kesOracle.latestRoundData();

        // Check data freshness
        require(block.timestamp - updatedAt < 3600, "Stale data");

        // Check confidence (recommended)
        require(kesOracle.getConfidence() >= 70, "Low confidence");

        return price; // 8 decimals
    }
}

REST API

curl -X GET "https://api.afxo.ai/v1/rates/KES/USD" \
  -H "X-API-Key: your_api_key"

Response:

{
  "pair": "KES/USD",
  "rate": "0.00770000",
  "confidence": 94,
  "sources": 6,
  "timestamp": "2025-01-20T12:00:00Z"
}

JavaScript/TypeScript

import { AFXOClient } from '@afxo/sdk';

const client = new AFXOClient({ apiKey: 'your_api_key' });

// Get current rate
const rate = await client.getRate('KES', 'USD');
console.log(rate.price, rate.confidence);

// Subscribe to updates
client.subscribe('KES/USD', (update) => {
  console.log('New rate:', update.price);
});

Documentation

Document	Description
API Reference	REST & WebSocket API documentation
Smart Contracts	Contract addresses and integration guide
Methodology	How rates are calculated and validated
Confidence Scoring	Understanding confidence scores

Contract Addresses

Access Control: All oracles require subscription or whitelist access. Unauthorized calls will revert with SubscriptionRequired().

Avalanche C-Chain (Mainnet) — Chain ID: 43114

Oracle	Address
All currencies	Coming Soon

Avalanche Fuji (Testnet) — Chain ID: 43113

All 27 oracles deployed and live. See full address list →

Key addresses:

Oracle	Proxy Address
KES/USD	0x62200Cc809D7B80665caCF314c46d3d638c775b1
NGN/USD	0xCaf356b38100CE40EDC125513C375E3b42E11D17
GHS/USD	0xbE894Aa75Fa1dd6fA6B945B99DB71B18172F1086
ZAR/USD	0x6E506531DE2Ad22c34B3b828E5865f8f12b91027
ETB/USD	0x8027f2a5DC69Ca1384e71691881ecDC889d71339

Examples

• JavaScript Examples — Node.js and browser integration
• Python Examples — Python SDK usage
• Solidity Examples — Smart contract integration patterns

Pricing

Plan	Update Frequency	Rate Limit
Sandbox	Daily	100 req/day
Starter ($49/mo)	Hourly	1,000 req/day
Builder ($99/mo)	5-minute	10,000 req/day
Growth ($299/mo)	1-minute	100,000 req/day
Enterprise	Sub-minute	Unlimited

View full pricing →

Security

• Multi-signature on-chain updates
• Rate change limits enforced on-chain
• Minimum confidence thresholds
• Full audit trail for all updates

Links

• Website: afxo.ai
• Documentation: afxo.ai/docs
• Network Status: afxo.ai/network
• API Access: afxo.ai/get-access

License

This documentation and example code is provided under the MIT License for integration purposes.

Note: The AFXO oracle smart contracts and backend services are proprietary software owned by Digitalyze Labs Ltd.

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