> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ifalabs.com/llms.txt
> Use this file to discover all available pages before exploring further.
# Supported Assets Reference Table
> Complete reference for every IFÁ Labs price feed including ZARP: asset IDs, categories, per-network availability, and how to request new stablecoin feeds.
This page is the authoritative reference for every price feed currently supported by IFÁ Labs. All feeds are USD-denominated, use consistent asset IDs across every supported network, and are updated using the hybrid deviation + heartbeat trigger model documented in [Update Triggers](/update-triggers-deviation-time).
***
## Current Price Feeds
| Asset | Symbol | Category | Decimal (EVM) | Asset ID (bytes32) |
| --------------------------------- | -------- | --------------- | ------------- | -------------------------------------------------------------------- |
| **Tether** | USDT/USD | Global | -18 | `0x6ca0cef6107263f3b09a51448617b659278cff744f0e702c24a2f88c91e65a0d` |
| **USD Coin** | USDC/USD | Global | -18 | `0xf989296bde68043d307a2bc0e59de3445defc5f292eb390b80d78162c8a6b13d` |
| **Nigerian Naira Stablecoin** | CNGN/USD | Emerging Market | -18 | `0x83a18c73cf75a028a24b79cbedb3b8d8ba363b748a3210ddbcaa95eec3b87b3a` |
| **South African Rand Stablecoin** | ZARP/USD | Emerging Market | -18 | `0x12373a3b1c4827c84bf6d7b11df100442695d0abfdb7a20d30a41d67d58e75a8` |
| **Brazilian Real Stablecoin** | BRZ/USD | Emerging Market | -18 | `0xbc60b55b031dce1ee5679098bf2f35d66a94a566124e2b233324d2bafcc6d5b5` |
| **Ethereum** | ETH/USD | Reference Asset | -18 | `0x8c3fb07cab369fe230ca4e45d095f796c4c1a30131f1799766d4fec5ee1325c0` |
The `Decimal (EVM)` column reflects EVM scaling where `-18` means divide by `10^18`. On Sui, the same feeds use a positive decimal `18` — the same division applies but the sign convention differs. See [Decimal Precision & Formatting](/decimal-precision-and-formatting) for the full explanation.
ETH/USD is included as a reference asset to enable derived pair calculations between stablecoins and ETH. IFÁ Labs is stablecoin-first — ETH is not a primary feed target.
***
## Feed Configuration
Each asset is configured with independent update triggers calibrated to its market behaviour:
| Asset | Deviation Threshold | Heartbeat | Recommended MAX\_PRICE\_AGE |
| -------- | ------------------- | --------- | --------------------------: |
| USDT/USD | 0.1% | 1 hour | 5,400s (90 min) |
| USDC/USD | 0.1% | 1 hour | 5,400s (90 min) |
| CNGN/USD | 0.3% | 2 hours | 10,800s (3 hrs) |
| ZARP/USD | 0.3% | 2 hours | 10,800s (3 hrs) |
| BRZ/USD | 0.3% | 2 hours | 10,800s (3 hrs) |
| ETH/USD | 0.5% | 1 hour | 5,400s (90 min) |
The `Recommended MAX_PRICE_AGE` is 1.5× the heartbeat interval — the minimum safe staleness threshold accounting for heartbeat jitter. See [Update Triggers](/update-triggers-deviation-time) for a full explanation of the trigger model.
***
## Network Availability
All feeds are available on every currently supported network. Asset IDs are identical across networks — only the contract address changes.
| Network | Status | Contract Address |
| ---------------------- | ------- | -------------------------------------------------------------------- |
| **Base Mainnet** | Live | `0xA9F17344689C2c2328F94464998db1d3e35B80dC` |
| **Base Sepolia** | Testnet | `0xbF2ae81D8Adf3AA22401C4cC4f0116E936e1025b` |
| **AssetChain Testnet** | Testnet | `0xBAc31e568883774A632275F9c8E7A5Bd117000F7` |
| **Sui Testnet** | Testnet | `0x4d165602d4bb3a7d428a3aa567e27cbe03c9de2ed5995f8c13d1adc4cd3d196f` |
On Sui, asset IDs are passed as `vector` (32-byte vectors) not `bytes32` hex strings. The underlying 32-byte value is identical across all networks — only the format differs. See the [Sui Integration Guide](/sui-read-latest-price) for Move-specific usage examples.
***
## Asset ID Generation
Every asset ID is deterministically generated from its symbol string using `keccak256`:
```solidity theme={null}
bytes32 assetId = keccak256(abi.encodePacked("USDT/USD"));
```
**Symbol string format:** uppercase, forward slash separator, `/USD` suffix. Case-sensitive — `"usdt/usd"` produces a different hash and returns `exists = false`.
Verify any asset ID independently:
```javascript theme={null}
const { ethers } = require("ethers");
const assets = [
"USDT/USD",
"USDC/USD",
"CNGN/USD",
"ZARP/USD",
"BRZ/USD",
"ETH/USD",
];
assets.forEach(symbol => {
const id = ethers.keccak256(ethers.toUtf8Bytes(symbol));
console.log(`${symbol}: ${id}`);
});
```
### On Sui
Asset IDs on Sui use the same underlying 32-byte value but are passed as `vector` instead of `bytes32`. To construct one in Move:
```move theme={null}
use ifa_oracle::bytes32;
// Pass the raw 32 bytes — no 0x prefix
let asset_id = bytes32::new(
x"6ca0cef6107263f3b09a51448617b659278cff744f0e702c24a2f88c91e65a0d"
);
```
In TypeScript using the Sui SDK:
```typescript theme={null}
// Strip the 0x prefix and convert to a byte array
const assetId = Array.from(
Buffer.from(
"6ca0cef6107263f3b09a51448617b659278cff744f0e702c24a2f88c91e65a0d",
"hex"
)
);
```
Do not include the `0x` prefix when converting asset IDs for Sui. Pass the raw 32 bytes only. The `bytes32::new()` function in the IFÁ Labs Move package validates that the input is exactly 32 bytes and will abort if the length is wrong.
***
## Solidity Constants
Copy-paste ready constants for every supported asset:
```solidity theme={null}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/// @notice IFÁ Labs asset ID constants
/// @dev Generated via keccak256(abi.encodePacked("SYMBOL/USD"))
/// Identical across all supported EVM networks
// Global stablecoins
bytes32 public constant USDT_ASSET_ID =
0x6ca0cef6107263f3b09a51448617b659278cff744f0e702c24a2f88c91e65a0d;
bytes32 public constant USDC_ASSET_ID =
0xf989296bde68043d307a2bc0e59de3445defc5f292eb390b80d78162c8a6b13d;
// Emerging market stablecoins
bytes32 public constant CNGN_ASSET_ID =
0x83a18c73cf75a028a24b79cbedb3b8d8ba363b748a3210ddbcaa95eec3b87b3a;
bytes32 public constant ZARP_ASSET_ID =
0x12373a3b1c4827c84bf6d7b11df100442695d0abfdb7a20d30a41d67d58e75a8;
bytes32 public constant BRZ_ASSET_ID =
0xbc60b55b031dce1ee5679098bf2f35d66a94a566124e2b233324d2bafcc6d5b5;
// Reference asset
bytes32 public constant ETH_ASSET_ID =
0x8c3fb07cab369fe230ca4e45d095f796c4c1a30131f1799766d4fec5ee1325c0;
```
### Move Constants (Sui)
```move theme={null}
// IFÁ Labs asset ID constants for Sui Move
// Generated via keccak256("SYMBOL/USD") — same values as EVM, different format
use ifa_oracle::bytes32::{Self, Bytes32};
public fun usdt_asset_id(): Bytes32 {
bytes32::new(x"6ca0cef6107263f3b09a51448617b659278cff744f0e702c24a2f88c91e65a0d")
}
public fun usdc_asset_id(): Bytes32 {
bytes32::new(x"f989296bde68043d307a2bc0e59de3445defc5f292eb390b80d78162c8a6b13d")
}
public fun cngn_asset_id(): Bytes32 {
bytes32::new(x"83a18c73cf75a028a24b79cbedb3b8d8ba363b748a3210ddbcaa95eec3b87b3a")
}
public fun zarp_asset_id(): Bytes32 {
bytes32::new(x"12373a3b1c4827c84bf6d7b11df100442695d0abfdb7a20d30a41d67d58e75a8")
}
public fun brz_asset_id(): Bytes32 {
bytes32::new(x"bc60b55b031dce1ee5679098bf2f35d66a94a566124e2b233324d2bafcc6d5b5")
}
public fun eth_asset_id(): Bytes32 {
bytes32::new(x"8c3fb07cab369fe230ca4e45d095f796c4c1a30131f1799766d4fec5ee1325c0")
}
```
***
## JavaScript / TypeScript Constants
```typescript theme={null}
export const IFA_ASSET_IDS = {
"USDT/USD": "0x6ca0cef6107263f3b09a51448617b659278cff744f0e702c24a2f88c91e65a0d",
"USDC/USD": "0xf989296bde68043d307a2bc0e59de3445defc5f292eb390b80d78162c8a6b13d",
"CNGN/USD": "0x83a18c73cf75a028a24b79cbedb3b8d8ba363b748a3210ddbcaa95eec3b87b3a",
"ZARP/USD": "0x12373a3b1c4827c84bf6d7b11df100442695d0abfdb7a20d30a41d67d58e75a8",
"BRZ/USD": "0xbc60b55b031dce1ee5679098bf2f35d66a94a566124e2b233324d2bafcc6d5b5",
"ETH/USD": "0x8c3fb07cab369fe230ca4e45d095f796c4c1a30131f1799766d4fec5ee1325c0",
} as const;
export const IFA_MAX_PRICE_AGE: Record = {
"USDT/USD": 5400,
"USDC/USD": 5400,
"CNGN/USD": 10800,
"ZARP/USD": 10800,
"BRZ/USD": 10800,
"ETH/USD": 5400,
};
// For Sui — strip 0x prefix and convert to byte arrays
export const IFA_ASSET_IDS_SUI: Record = Object.fromEntries(
Object.entries(IFA_ASSET_IDS).map(([symbol, hex]) => [
symbol,
Array.from(Buffer.from(hex.slice(2), "hex")),
])
) as Record;
```
***
## Python Constants
```python theme={null}
IFA_ASSET_IDS = {
"USDT/USD": "0x6ca0cef6107263f3b09a51448617b659278cff744f0e702c24a2f88c91e65a0d",
"USDC/USD": "0xf989296bde68043d307a2bc0e59de3445defc5f292eb390b80d78162c8a6b13d",
"CNGN/USD": "0x83a18c73cf75a028a24b79cbedb3b8d8ba363b748a3210ddbcaa95eec3b87b3a",
"ZARP/USD": "0x12373a3b1c4827c84bf6d7b11df100442695d0abfdb7a20d30a41d67d58e75a8",
"BRZ/USD": "0xbc60b55b031dce1ee5679098bf2f35d66a94a566124e2b233324d2bafcc6d5b5",
"ETH/USD": "0x8c3fb07cab369fe230ca4e45d095f796c4c1a30131f1799766d4fec5ee1325c0",
}
IFA_MAX_PRICE_AGE = {
"USDT/USD": 5400,
"USDC/USD": 5400,
"CNGN/USD": 10800,
"ZARP/USD": 10800,
"BRZ/USD": 10800,
"ETH/USD": 5400,
}
# For EVM — convert hex strings to bytes for web3.py
IFA_ASSET_IDS_BYTES = {
symbol: bytes.fromhex(asset_id[2:])
for symbol, asset_id in IFA_ASSET_IDS.items()
}
# For Sui — same byte values, list format for Sui SDK
IFA_ASSET_IDS_SUI = {
symbol: list(bytes.fromhex(asset_id[2:]))
for symbol, asset_id in IFA_ASSET_IDS.items()
}
```
***
## Derived Pair Support
Any two supported assets can be priced against each other using the oracle's derived pair functions — without requiring a dedicated feed for every possible combination.
**Examples of available derived pairs:**
| Pair | Description | EVM Function | Sui Function |
| --------- | -------------------------------------------- | ----------------------------------- | -------------------------------------------- |
| CNGN/USDT | Nigerian naira stablecoin priced in USDT | `getPairbyId(CNGN, USDT, Forward)` | `get_pair_by_id(&feed, cngn_id, usdt_id, 0)` |
| ZARP/USDC | South African rand stablecoin priced in USDC | `getPairbyId(ZARP, USDC, Forward)` | `get_pair_by_id(&feed, zarp_id, usdc_id, 0)` |
| BRZ/USDT | Brazilian real stablecoin priced in USDT | `getPairbyId(BRZ, USDT, Forward)` | `get_pair_by_id(&feed, brz_id, usdt_id, 0)` |
| USDT/CNGN | USDT priced in CNGN terms | `getPairbyId(CNGN, USDT, Backward)` | `get_pair_by_id(&feed, cngn_id, usdt_id, 1)` |
| ETH/USDC | ETH priced in USDC terms | `getPairbyId(ETH, USDC, Forward)` | `get_pair_by_id(&feed, eth_id, usdc_id, 0)` |
Direction values: `0` = Forward (asset0 / asset1), `1` = Backward (asset1 / asset0).
Any combination of the six supported assets is computable as a derived pair. See [Function Reference](/function-reference) for the full EVM derived pair API, or the [Sui Function Reference](/sui-function-reference) for Move.
On Sui, derived pair functions abort if either underlying asset does not exist in the feed — they do not return a false flag like the EVM `exists` boolean. Always verify both assets exist with `get_asset_info` before calling any pair function on Sui.
***
## Requesting New Feeds
IFÁ Labs adds new assets on a rolling basis based on ecosystem demand. Priority is given to:
* Stablecoins with verified, transparent backing
* Assets with demonstrated on-chain or real-world adoption
* Emerging market stablecoins in Africa, Latin America, and Southeast Asia
* Assets requested by active protocol integrations
**To request a new feed:**
[support@ifalabs.com](mailto:support@ifalabs.com) — include token contract, backing proof, and use case
t.me/ifalabs — fastest response for quick questions
Open a feed request issue with full details
When submitting a request, include:
* Token contract address on all relevant chains
* Backing mechanism and reserve proof
* Current daily trading volume across all venues
* The protocol or use case driving the request
* Any existing oracle coverage on other networks
***
## Next Steps
RPC endpoints, chain IDs, and explorer links for all supported networks.
How asset IDs are generated, verified, and used in contracts.