# Price Oracle

### Introduction

Exchange rates for each supported asset are an integral part of the Tectonic protocol, as they are used to determine the collateralization ratio and all other functions that require inter assets value determination. 

### Price Feed

Exchange rates of all supported assets on Tectonic are maintained through Tectonic's internal price feed, which source these prices from multiple data sources consisting of centralized and decentralized exchanges.

In the future, it is possible to replace or supplement the existing price feed with any other decentralized oracle protocols. The Tectonic team will revisit this issue from time to time and provide updates as price feeds from other price oracles become available on Cronos.

### Price Oracle Address

<table><thead><tr><th width="173.43633482414566">Contract</th><th width="275.13949112689346">Address</th><th>Price Sources</th></tr></thead><tbody><tr><td>BTC/USD </td><td><code>0xb3DF0a9582361db08EC100bd5d8CB70fa8579f4B</code></td><td>Crypto.com Exchange, Coinbase, Binance, Kraken, OKEx, Huobi</td></tr><tr><td>ETH/USD </td><td><code>0x6850A6e773b9a625C6810E34070491d0FF97E065</code></td><td>Crypto.com Exchange, Binance, Kraken, OKEx</td></tr><tr><td>CRO/USD </td><td><code>0x4636AC8216805Fe96dE9E7aFc62dA99096a930F6</code></td><td>Crypto.com Exchange, Okex</td></tr><tr><td>DAI/USD</td><td><code>0xB3b3EcC7FB61C642Ea64D0AD5c61A5EAc4822717</code></td><td>Crypto.com Exchange, Coinbase, Huobi, Binance, Kraken</td></tr><tr><td>TONIC/USD</td><td><code>0x14f753940720C1Fa4247Cd464C7EA28c806d123F</code></td><td>VVS Finance, Crypto.com Exchange</td></tr><tr><td>USDT/USD</td><td><code>0xde3fE5B7932F3Fb225d91f119735fECE12426c43</code></td><td>Crypto.com Exchange, Coinbase, Kraken</td></tr><tr><td>USDC/USD</td><td><code>0xb653d72da2b40fac0a49f912837bf24c6da0188e</code></td><td>Binance US, Kraken, Pyth Network</td></tr><tr><td>ADA/USD</td><td><code>0x5A9B9309078dB46D1b84732B5A712B06B6793E3D</code></td><td>Crypto.com Exchange, Coinbase, Binance, Kraken, OKEx</td></tr><tr><td>XRP/USD</td><td><code>0xE73358add0067aA2C7C7e6d7eddddC9AEf729FDa</code></td><td>Crypto.com Exchange, Huobi, Binance, Kraken, OKEx</td></tr><tr><td>LTC/USD</td><td><code>0xdD320Fb102138acEDe0a7E7703725bB565a61F7A</code></td><td>Crypto.com Exchange, Coinbase, Binance, Kraken, OKEx</td></tr><tr><td>ATOM/USD</td><td><code>0xf195E3b4Bd4392d21413dd33031fA1baa5e6a5fe</code></td><td>Crypto.com Exchange, Coinbase, Binance, Kraken, OKEx</td></tr><tr><td>VVS/USD</td><td><code>0x7D625dc9375CA33C2B33787c527BCA0cF9Ab12e0</code></td><td>VVS Finance, Crypto.com Exchange</td></tr><tr><td>FER/USD</td><td><code>0xc97dDe88E908DcDA7940cEA39D84FCa8AAC84a29</code></td><td>VVS Finance, Crypto.com Exchange</td></tr><tr><td>VNO/USD</td><td><code>0x4FD89142B8d411Da5f87ddb55Ce3f9666B0bFCe0</code></td><td>VVS Finance, Crypto.com Exchange</td></tr><tr><td>FUL/USD</td><td><code>0x33d00558eE6b86d1C3002075c234913fBf3fbd24</code></td><td>VVS Finance, Crypto.com Exchange</td></tr><tr><td>LCRO/USD</td><td><code>0xA03748e20868c92573c0dd6236474Bce634F4efB</code></td><td>Ferro Protocol</td></tr><tr><td>LATOM/USD</td><td><code>0xa41369e3A3277643c65d2865df41e3C9358F3CE5</code></td><td>Crypto.com Exchange, Coinbase, Binance, Kraken, OKEx</td></tr></tbody></table>


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