Why Choose AFXO?
AFXO delivers world-class signed price feeds with features that existing oracles don't offer. Purpose-built for institutional use with full cryptographic auditability.
Feature Comparison
See how AFXO's signed price feed standard compares to Chainlink Data Streams and Pyth Network.
| Feature | AFXO v2 | Chainlink | Pyth |
|---|---|---|---|
Feed ID (bytes32) Unique identifier for each price feed | ✓ | ✓ | ✓ |
Explicit Decimals Self-describing precision in signed data | ✓ | ✗ | ✓ |
Confidence Score Data quality metric included in feed | ✓ | ✗ | ✓ |
Source Count Number of data sources used | ✓ | ✗ | ✓ |
Round/Sequence Monotonically increasing for ordering | ✓ | ✗ | ✗ |
Expiry (validUntil) Signature expiry for staleness protection | ✓ | ✓ | ✗ |
Chain Safety in Data Target chainId embedded in signed payload | ✓ | ✗ | ✓ |
Provenance Hash Cryptographic audit trail of data sources | ✓ | ✗ | ✗ |
African Currencies 13+ African currencies (KES, NGN, GHS, etc.) | ✓ | ✗ | ✗ |
LatAm Currencies BRL, MXN, ARS, COP, CLP, PEN | ✓ | ✗ | ✗ |
Volatility Signals Realized volatility, regime detection | ✓ | ✗ | ✗ |
Carry Trade Signals Interest rate differentials, LONG/SHORT signals | ✓ | ✗ | ✗ |
Economic Intelligence Central bank rates, inflation data, macro indicators | ✓ | ✗ | ✗ |
What Makes AFXO Different
Built from the ground up for institutional requirements that existing oracles don't address.
Provenance Hash
Every AFXO price feed includes a cryptographic hash of the exact sources used to compute the rate. This enables full auditability—verify exactly which data sources contributed to any historical price.
Emerging Markets Coverage
AFXO is the only oracle providing institutional-grade coverage for 50+ currencies across Africa (13), Latin America (6), and Asia (6). Chainlink and Pyth focus on majors—we fill the gap.
Economic Intelligence
Beyond prices: volatility signals, carry trade recommendations, interest rate differentials, and real-rate calculations. Trading signals, not just data feeds.
Confidence-Aware Data
Unlike Chainlink, every AFXO feed includes a confidence score (0-10000 basis points). Your smart contracts can make risk-aware decisions based on data quality.
EIP-712 Signed Feeds
Industry-standard typed structured data signing. Verify signatures on-chain or off-chain with standard tooling. No proprietary formats.
AFXO Signed Price Feed v2
Every signed response includes comprehensive metadata for verification, auditability, and risk management. Standard EIP-712 format for easy integration.
- Deterministic feed IDs via keccak256
- Monotonically increasing rounds
- Configurable signature validity
- Chain-specific safety guarantees
{
"feedId": "0x7af3c2...",
"price": "12934500000",
"decimals": 8,
"confidence": 8750,
"sourceCount": 5,
"timestamp": 1705845600,
"validUntil": 1705845900,
"round": 42847,
"chainId": 43114,
"aggregationHash": "0x9f2e..."
}Ready to Integrate?
Start with our v2 signed price feeds today. Comprehensive documentation, verification helpers, and enterprise support available.