> For the complete documentation index, see [llms.txt](https://docs.swivel.finance/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.swivel.finance/swivel-v2.0.0/developers/contract.md).

# Contracts Overview

## Contract Addresses:

### Mainnet:

**Swivel.sol:** 0x3b983B701406010866bD68331aAed374fb9f50C9

**Marketplace.sol:** 0x998689650D4d55822b4bDd4B7DB5F596bf6b3570

### Rinkeby:

**Swivel.sol:** 0x4ccD4C002216f08218EdE1B13621faa80CecfC98

**Marketplace.sol:** 0x9fa54f942D8b8e992501952C3e6E67F1A42595b8

## Mainnet zcTokens & nToken Vaults:

### zcUSDC

zcUSDC is a standard ERC-20 token, and there is a different zcUSDC for each maturity:

**zcUSDC-March:** 0x4bfbc830f0c3b6f1343efd8b36f31ff4d0028b56 \
Etherscan: <https://etherscan.io/token/0x4bfbc830f0c3b6f1343efd8b36f31ff4d0028b56>

**zcUSDC-June:** 0xab53b4dbab4a51ee866957726bae19efe28b5e5b\
Etherscan: <https://etherscan.io/token/0xab53b4dbab4a51ee866957726bae19efe28b5e5b>

### nUSDC Vaults

nUSDC is a non-standard erc and each `Vault` contract tracks not only a user's nUSDC balance, but their interest generated as well.

**nUSDC Vault-March:** 0xCAcF039F0BB37f3B37394db2Dc3Ae41c97Fa6594

**nUSDC Vault-June:** 0x3fA738e85cCF9702185fe43f5CdC7c4EcCA2eF7F

​