> ## Documentation Index
> Fetch the complete documentation index at: https://circle-devdocs-test-ai-codegen-component.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Smart Contract Addresses

You can use the following contract addresses to integrate with USYC on Ethereum
mainnet or Sepolia testnet.

To learn more about smart contracts, see the
[Circle contracts overview](/contracts).

## Ethereum mainnet

| Contract      | Address                                    |
| ------------- | ------------------------------------------ |
| USYC          | 0x136471a34f6ef19fE571EFFC1CA711fdb8E49f2b |
| Oracle        | 0x4c48bcb2160F8e0aDbf9D4F3B034f1e36d1f8b3e |
| Teller (USDC) | 0x5C73E1cfdD85b7f1d608F7F7736fC8C653513B7A |
| Entitlements  | 0x470f3b37B9B20E13b0A2a5965Df6bD3f9640DFB4 |

## Sepolia testnet

| Contract      | Address                                    |
| ------------- | ------------------------------------------ |
| USYC          | 0x38D3A3f8717F4DB1CcB4Ad7D8C755919440848A3 |
| Oracle        | 0x35b96d80C72f873bACc44A1fACfb1f5fac064f1a |
| Teller (USDC) | 0xbb0524426bc1d13dAB721DB69D86374FC6BaCDba |
| Entitlements  | 0xFA4400c1B9AC496d9578B4B6507295A5aaD29EE7 |