# Anchor Feeds

> Scaling anchor feeds update every voting epoch on Flare, approximately every 90s.

> For the complete documentation index, see [llms.txt](/llms.txt). Markdown versions of documentation pages are available by appending `.md` to the page URL.

Source: https://dev.flare.network/ftso/scaling/anchor-feeds

Scaling's anchor feeds update every 90 seconds with each new voting epoch on Flare. These feeds, accessible offchain, support various asset classes including equities, commodities, and cryptocurrencies.

<details>
<summary>How Feed IDs are derived.</summary>

How Feed IDs are derived.

Each block-latency feed is uniquely identified by an ID composed of three components in a structured encoding process:

1.  **Category:** Indicates the type of asset - Crypto: `01`, Forex: `02`, Commodity: `03`, Stock: `04`, Custom Feeds: `21`
    
2.  **Hex-Encoded Feed Name:** The name of the feed is converted to a hexadecimal format.
    
3.  **Zero Padding:** The combined category and hex-encoded feed name are padded with zeros to a length of 21 bytes.
    
4.  **0x-prefix:** The resulting string is then prefixed with `0x`.
    

As an example, take the feed name `FLR/USD`:

-   **Category**: `01` (Crypto)
-   **Hex-Encoded Feed Name**: `464c522f555344` (hexadecimal representation of `FLR/USD`)
-   **Zero Padding**: The category and hex-encoded feed name combined and padded: `01464c522f55534400000000000000000000000000`
-   **Final ID**: Adding the `0x` prefix results in `0x01464c522f55534400000000000000000000000000`

GetFeedId.sol

```
// SPDX-License-Identifier: MITpragma solidity >=0.8.0 <0.9.0;import {ContractRegistry} from "@flarenetwork/flare-periphery-contracts/coston2/ContractRegistry.sol";import {IFtsoFeedIdConverter} from "@flarenetwork/flare-periphery-contracts/coston2/IFtsoFeedIdConverter.sol";contract GetFeedId {    IFtsoFeedIdConverter internal feedIdConverter;    constructor() {        feedIdConverter = ContractRegistry.getFtsoFeedIdConverter();    }    function exampleFlrUsdConversion() external view returns (bytes21) {        return feedIdConverter.getFeedId(1, "FLR/USD");    }}
```

get\_feed\_id.js

```
function getFeedId(category, feedName) {  const hexFeedName = Array.from(feedName)    .map((c) => c.charCodeAt(0).toString(16).padStart(2, "0"))    .join("");  const paddedHexString = (category + hexFeedName).padEnd(42, "0");  return `0x${paddedHexString}`;}const feedId = getFeedId("01", "FLR/USD");console.log(feedId);
```

get\_feed\_id.py

```
def get_feed_id(category: str, feed_name: str) -> str:    hex_feed_name = feed_name.encode("utf-8").hex()    padded_hex_string = (category + hex_feed_name).ljust(42, "0")    return f"0x{padded_hex_string}"feed_id = get_feed_id("01", "FLR/USD")print(feed_id)
```

get\_feed\_id.rs

```
fn get_feed_id(category: &str, feed_name: &str) -> String {    let hex_feed_name = feed_name        .as_bytes()        .iter()        .map(|byte| format!("{byte:02x}"))        .collect::<Vec<String>>()        .join("");    let combined = format!("{category}{hex_feed_name}");    let padded_hex_string = format!("{combined:0<42}");    format!("0x{padded_hex_string}")}fn main() {    let feed_id = get_feed_id("01", "FLR/USD");    println!("{feed_id}");}
```

get\_feed\_id.go

```
package mainimport (	"encoding/hex"	"fmt"	"strings")func getFeedID(category, feedName string) string {	hexFeedName := hex.EncodeToString([]byte(feedName))	paddedHexString := category + hexFeedName	if len(paddedHexString) < 42 {		paddedHexString = paddedHexString + strings.Repeat("0", 42-len(paddedHexString))	}	feedId := "0x" + paddedHexString	fmt.Println(feedId)	return feedId}
```

</details>
<details>
<summary>🚦 Understanding feed risks.</summary>

🚦 Understanding feed risks.

When building applications, developers must carefully evaluate the quality of the data they use. As a developer, you are responsible for identifying and assessing the accuracy, availability, and overall quality of the data you choose to integrate. It is important to understand that all data feeds carry inherent risks.

The table below categorizes feeds into three risk levels based on their market integrity, ranging from lowest to highest, a feed is assigned a higher risk level if it fails to meet **all** the criteria required for classification within a lower risk level:

**Aspect**

🟢 **Low Risk**

🟡 **Medium Risk**

🔴 **High Risk**

**Intrinsic Volatility**

Low, stable price trends

Moderate price fluctuations

High, frequent price swings

**Liquidity Variation**

Abundant and consistent

Sufficient but variable

Limited and inconsistent

**Liquidity Concentration**

Broad and well-distributed across venues

Somewhat concentrated

Highly concentrated in a few sources

**Asset Spread Risk**

Tight spreads, minimal bid-ask gaps

Moderate spreads, acceptable bid-ask gaps

Wide spreads, significant bid-ask gaps

**Cross Rate Risk**

Low correlation, direct pricing available

Moderate correlation, indirect pricing used

High correlation, dependent on multiple intermediaries

**Other risk categories:**

-   ⚫ **New Feed** New tokens lack historical data for proper risk assessment and stable price discovery. Users must recognize these assets carry higher volatility risks and verify feed reliability independently. After a monitoring period, feeds will be assigned risk levels or potentially discontinued.

Each feed undergoes a rigorous assessment process prior to deployment. The evaluation criteria may vary depending on the specific type of feed being implemented and can evolve over time as our understanding of market integrity risks improves.

</details>

warning

Feed IDs are not addresses. They are `bytes21` structured encodings that combine the category and feed name to ensure each feed has a unique identifier.

Name

Feed ID

Details

Risk

[FLR/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x01464c522f55534400000000000000000000000000 "Open FLR/USD in Flare Systems Explorer")

0x01464c522f55534400000000000000000000000000

Base Asset: Flare  
Category: Crypto

🟢

[SGB/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x015347422f55534400000000000000000000000000 "Open SGB/USD in Flare Systems Explorer")

0x015347422f55534400000000000000000000000000

Base Asset: Songbird  
Category: Crypto

🟡

[BTC/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x014254432f55534400000000000000000000000000 "Open BTC/USD in Flare Systems Explorer")

0x014254432f55534400000000000000000000000000

Base Asset: Bitcoin  
Category: Crypto

🟢

[XRP/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x015852502f55534400000000000000000000000000 "Open XRP/USD in Flare Systems Explorer")

0x015852502f55534400000000000000000000000000

Base Asset: XRP  
Category: Crypto

🟢

[LTC/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x014c54432f55534400000000000000000000000000 "Open LTC/USD in Flare Systems Explorer")

0x014c54432f55534400000000000000000000000000

Base Asset: Litecoin  
Category: Crypto

🟡

[XLM/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x01584c4d2f55534400000000000000000000000000 "Open XLM/USD in Flare Systems Explorer")

0x01584c4d2f55534400000000000000000000000000

Base Asset: Stellar  
Category: Crypto

🟢

[DOGE/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x01444f47452f555344000000000000000000000000 "Open DOGE/USD in Flare Systems Explorer")

0x01444f47452f555344000000000000000000000000

Base Asset: Dogecoin  
Category: Crypto

🟢

[ADA/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x014144412f55534400000000000000000000000000 "Open ADA/USD in Flare Systems Explorer")

0x014144412f55534400000000000000000000000000

Base Asset: Cardano  
Category: Crypto

🟢

[ALGO/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x01414c474f2f555344000000000000000000000000 "Open ALGO/USD in Flare Systems Explorer")

0x01414c474f2f555344000000000000000000000000

Base Asset: Algorand  
Category: Crypto

🟢

[ETH/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x014554482f55534400000000000000000000000000 "Open ETH/USD in Flare Systems Explorer")

0x014554482f55534400000000000000000000000000

Base Asset: Ethereum  
Category: Crypto

🟢

[FIL/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x0146494c2f55534400000000000000000000000000 "Open FIL/USD in Flare Systems Explorer")

0x0146494c2f55534400000000000000000000000000

Base Asset: Filecoin  
Category: Crypto

🟢

[ARB/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x014152422f55534400000000000000000000000000 "Open ARB/USD in Flare Systems Explorer")

0x014152422f55534400000000000000000000000000

Base Asset: Arbitrum  
Category: Crypto

🟡

[AVAX/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x01415641582f555344000000000000000000000000 "Open AVAX/USD in Flare Systems Explorer")

0x01415641582f555344000000000000000000000000

Base Asset: Avalanche  
Category: Crypto

🟢

[BNB/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x01424e422f55534400000000000000000000000000 "Open BNB/USD in Flare Systems Explorer")

0x01424e422f55534400000000000000000000000000

Base Asset: BNB  
Category: Crypto

🟢

[POL/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x01504f4c2f55534400000000000000000000000000 "Open POL/USD in Flare Systems Explorer")

0x01504f4c2f55534400000000000000000000000000

Base Asset: POL (ex-MATIC)  
Category: Crypto

🟢

[SOL/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x01534f4c2f55534400000000000000000000000000 "Open SOL/USD in Flare Systems Explorer")

0x01534f4c2f55534400000000000000000000000000

Base Asset: Solana  
Category: Crypto

🟢

[USDC/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x01555344432f555344000000000000000000000000 "Open USDC/USD in Flare Systems Explorer")

0x01555344432f555344000000000000000000000000

Base Asset: USDC  
Category: Crypto

🟢

[USDT/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x01555344542f555344000000000000000000000000 "Open USDT/USD in Flare Systems Explorer")

0x01555344542f555344000000000000000000000000

Base Asset: Tether  
Category: Crypto

🟢

[XDC/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x015844432f55534400000000000000000000000000 "Open XDC/USD in Flare Systems Explorer")

0x015844432f55534400000000000000000000000000

Base Asset: XDC Network  
Category: Crypto

🟡

[TRX/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x015452582f55534400000000000000000000000000 "Open TRX/USD in Flare Systems Explorer")

0x015452582f55534400000000000000000000000000

Base Asset: TRON  
Category: Crypto

🟢

[LINK/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x014c494e4b2f555344000000000000000000000000 "Open LINK/USD in Flare Systems Explorer")

0x014c494e4b2f555344000000000000000000000000

Base Asset: Chainlink  
Category: Crypto

🟢

[ATOM/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x0141544f4d2f555344000000000000000000000000 "Open ATOM/USD in Flare Systems Explorer")

0x0141544f4d2f555344000000000000000000000000

Base Asset: Cosmos Hub  
Category: Crypto

🟢

[DOT/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x01444f542f55534400000000000000000000000000 "Open DOT/USD in Flare Systems Explorer")

0x01444f542f55534400000000000000000000000000

Base Asset: Polkadot  
Category: Crypto

🟡

[TON/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x01544f4e2f55534400000000000000000000000000 "Open TON/USD in Flare Systems Explorer")

0x01544f4e2f55534400000000000000000000000000

Base Asset: Toncoin  
Category: Crypto

🟢

[ICP/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x014943502f55534400000000000000000000000000 "Open ICP/USD in Flare Systems Explorer")

0x014943502f55534400000000000000000000000000

Base Asset: Internet Computer  
Category: Crypto

🟡

[SHIB/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x01534849422f555344000000000000000000000000 "Open SHIB/USD in Flare Systems Explorer")

0x01534849422f555344000000000000000000000000

Base Asset: Shiba Inu  
Category: Crypto

🟡

[USDS/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x01555344532f555344000000000000000000000000 "Open USDS/USD in Flare Systems Explorer")

0x01555344532f555344000000000000000000000000

Base Asset: USDS  
Category: Crypto

🟢

[BCH/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x014243482f55534400000000000000000000000000 "Open BCH/USD in Flare Systems Explorer")

0x014243482f55534400000000000000000000000000

Base Asset: Bitcoin Cash  
Category: Crypto

🟢

[NEAR/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x014e4541522f555344000000000000000000000000 "Open NEAR/USD in Flare Systems Explorer")

0x014e4541522f555344000000000000000000000000

Base Asset: NEAR Protocol  
Category: Crypto

🟡

[LEO/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x014c454f2f55534400000000000000000000000000 "Open LEO/USD in Flare Systems Explorer")

0x014c454f2f55534400000000000000000000000000

Base Asset: LEO Token  
Category: Crypto

🔴

[UNI/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x01554e492f55534400000000000000000000000000 "Open UNI/USD in Flare Systems Explorer")

0x01554e492f55534400000000000000000000000000

Base Asset: Uniswap  
Category: Crypto

🟡

[ETC/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x014554432f55534400000000000000000000000000 "Open ETC/USD in Flare Systems Explorer")

0x014554432f55534400000000000000000000000000

Base Asset: Ethereum Classic  
Category: Crypto

🟢

[WIF/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x015749462f55534400000000000000000000000000 "Open WIF/USD in Flare Systems Explorer")

0x015749462f55534400000000000000000000000000

Base Asset: dogwifhat  
Category: Crypto

🟡

[BONK/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x01424f4e4b2f555344000000000000000000000000 "Open BONK/USD in Flare Systems Explorer")

0x01424f4e4b2f555344000000000000000000000000

Base Asset: Bonk  
Category: Crypto

🟡

[JUP/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x014a55502f55534400000000000000000000000000 "Open JUP/USD in Flare Systems Explorer")

0x014a55502f55534400000000000000000000000000

Base Asset: Jupiter  
Category: Crypto

🟡

[ETHFI/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x0145544846492f5553440000000000000000000000 "Open ETHFI/USD in Flare Systems Explorer")

0x0145544846492f5553440000000000000000000000

Base Asset: Ether.fi  
Category: Crypto

🔴

[ENA/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x01454e412f55534400000000000000000000000000 "Open ENA/USD in Flare Systems Explorer")

0x01454e412f55534400000000000000000000000000

Base Asset: Ethena  
Category: Crypto

🟡

[PYTH/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x01505954482f555344000000000000000000000000 "Open PYTH/USD in Flare Systems Explorer")

0x01505954482f555344000000000000000000000000

Base Asset: Pyth Network  
Category: Crypto

🟡

[HNT/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x01484e542f55534400000000000000000000000000 "Open HNT/USD in Flare Systems Explorer")

0x01484e542f55534400000000000000000000000000

Base Asset: Helium  
Category: Crypto

🟡

[SUI/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x015355492f55534400000000000000000000000000 "Open SUI/USD in Flare Systems Explorer")

0x015355492f55534400000000000000000000000000

Base Asset: Sui  
Category: Crypto

🟡

[PEPE/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x01504550452f555344000000000000000000000000 "Open PEPE/USD in Flare Systems Explorer")

0x01504550452f555344000000000000000000000000

Base Asset: Pepe  
Category: Crypto

🟢

[QNT/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x01514e542f55534400000000000000000000000000 "Open QNT/USD in Flare Systems Explorer")

0x01514e542f55534400000000000000000000000000

Base Asset: Quant  
Category: Crypto

🟢

[AAVE/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x01414156452f555344000000000000000000000000 "Open AAVE/USD in Flare Systems Explorer")

0x01414156452f555344000000000000000000000000

Base Asset: Aave  
Category: Crypto

🟡

[S/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x01532f555344000000000000000000000000000000 "Open S/USD in Flare Systems Explorer")

0x01532f555344000000000000000000000000000000

Base Asset: Sonic  
Category: Crypto

🟡

[ONDO/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x014f4e444f2f555344000000000000000000000000 "Open ONDO/USD in Flare Systems Explorer")

0x014f4e444f2f555344000000000000000000000000

Base Asset: Ondo  
Category: Crypto

🟢

[TAO/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x0154414f2f55534400000000000000000000000000 "Open TAO/USD in Flare Systems Explorer")

0x0154414f2f55534400000000000000000000000000

Base Asset: Bittensor  
Category: Crypto

🟢

[FET/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x014645542f55534400000000000000000000000000 "Open FET/USD in Flare Systems Explorer")

0x014645542f55534400000000000000000000000000

Base Asset: Artificial Superintelligence Alliance  
Category: Crypto

🟡

[RENDER/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x0152454e4445522f55534400000000000000000000 "Open RENDER/USD in Flare Systems Explorer")

0x0152454e4445522f55534400000000000000000000

Base Asset: Render  
Category: Crypto

🟡

[NOT/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x014e4f542f55534400000000000000000000000000 "Open NOT/USD in Flare Systems Explorer")

0x014e4f542f55534400000000000000000000000000

Base Asset: Notcoin  
Category: Crypto

🟡

[RUNE/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x0152554e452f555344000000000000000000000000 "Open RUNE/USD in Flare Systems Explorer")

0x0152554e452f555344000000000000000000000000

Base Asset: THORChain  
Category: Crypto

🟡

[TRUMP/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x015452554d502f5553440000000000000000000000 "Open TRUMP/USD in Flare Systems Explorer")

0x015452554d502f5553440000000000000000000000

Base Asset: Official Trump  
Category: Crypto

🟢

[USDX/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x01555344582f555344000000000000000000000000 "Open USDX/USD in Flare Systems Explorer")

0x01555344582f555344000000000000000000000000

Base Asset: Hex Trust USD  
Category: Crypto

🔴

[HBAR/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x01484241522f555344000000000000000000000000 "Open HBAR/USD in Flare Systems Explorer")

0x01484241522f555344000000000000000000000000

Base Asset: Hedera  
Category: Crypto

🟡

[PENGU/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x0150454e47552f5553440000000000000000000000 "Open PENGU/USD in Flare Systems Explorer")

0x0150454e47552f5553440000000000000000000000

Base Asset: Pudgy Penguins  
Category: Crypto

🟢

[HYPE/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x01485950452f555344000000000000000000000000 "Open HYPE/USD in Flare Systems Explorer")

0x01485950452f555344000000000000000000000000

Base Asset: Hyperliquid  
Category: Crypto

🟢

[APT/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x014150542f55534400000000000000000000000000 "Open APT/USD in Flare Systems Explorer")

0x014150542f55534400000000000000000000000000

Base Asset: Aptos  
Category: Crypto

🟢

[PAXG/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x01504158472f555344000000000000000000000000 "Open PAXG/USD in Flare Systems Explorer")

0x01504158472f555344000000000000000000000000

Base Asset: PAX Gold  
Category: Crypto

🟢

[BERA/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x01424552412f555344000000000000000000000000 "Open BERA/USD in Flare Systems Explorer")

0x01424552412f555344000000000000000000000000

Base Asset: Berachain  
Category: Crypto

🔴

[OP/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x014f502f5553440000000000000000000000000000 "Open OP/USD in Flare Systems Explorer")

0x014f502f5553440000000000000000000000000000

Base Asset: Optimism  
Category: Crypto

🟡

[PUMP/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x0150554d502f555344000000000000000000000000 "Open PUMP/USD in Flare Systems Explorer")

0x0150554d502f555344000000000000000000000000

Base Asset: Pump.fun  
Category: Crypto

🟢

[XPL/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x0158504c2f55534400000000000000000000000000 "Open XPL/USD in Flare Systems Explorer")

0x0158504c2f55534400000000000000000000000000

Base Asset: Plasma  
Category: Crypto

🟢

[MON/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x014d4f4e2f55534400000000000000000000000000 "Open MON/USD in Flare Systems Explorer")

0x014d4f4e2f55534400000000000000000000000000

Base Asset: Monad  
Category: Crypto

🟢

[NIGHT/USD](https://flare-systems-explorer.flare.network/price-feeds/ftso?feed=0x014e494748542f5553440000000000000000000000 "Open NIGHT/USD in Flare Systems Explorer")

0x014e494748542f5553440000000000000000000000

Base Asset: Midnight  
Category: Crypto

🟡