# Smart Contracts

### LRC <a href="#lrc" id="lrc"></a>

* LRC Address: [0xBBbbCA6A901c926F240b89EacB641d8Aec7AEafD](https://etherscan.io/address/0xbbbbca6a901c926f240b89eacb641d8aec7aeafd) ([lrctoken.eth](https://etherscan.io/address/lrctoken.eth))

### Loopring Exchange V2 <a href="#loopring-exchange-v2-added-at-2020-12-21" id="loopring-exchange-v2-added-at-2020-12-21"></a>

* ExchangeV3: 0x0BABA1Ad5bE3a5C0a66E7ac838a129Bf948f1eA4 ([exchange2.loopring.eth](https://etherscan.io/address/exchange2.loopring.eth))
* DefaultDepositContract: 0x674bdf20A0F284D710BC40872100128e2d66Bd3f ([deposit2.loopring.eth](https://etherscan.io/address/deposit2.loopring.eth))
* LoopringIOExchangeOwner: 0x5c367c1b2603ed166C62cEc0e4d47e9D5DC1c073
* ExchangeV3 Implementation: 0x2fefbeF4d1445F523941c56349C2414cd5e9675d
* LoopringV3: 0xe56D6ccab6551932C0356E4e8d5dAF0630920C71
* BlockVerifier: 0x6150343E0F43A17519c0327c41eDd9eBE88D01ef ([verifier2.loopring.eth](https://etherscan.io/address/verifier2.loopring.eth))
* AgentRegistry: 0x39B9bf169a7e225ba037C443A40460c77438ea14 ([agents2.loopring.eth](https://etherscan.io/address/agents2.loopring.eth))
* FastWithdrawalAgent: 0xec3Cc6Cf0252565b56FC7AC396017Df5b9B78a31 ([fastwithdraw2.loopring.eth](https://etherscan.io/address/fastwithdraw2.loopring.eth))
* CounterFactual NFT Factory: 0xc852aC7aAe4b0f0a0Deb9e8A391ebA2047d80026

{% hint style="info" %}
**Open Sourced**

The code of the Loopring Protocol is entirely open-sourced, including its [design document](https://github.com/Loopring/protocols/blob/master/packages/loopring_v3/DESIGN.md), [smart contracts](https://github.com/Loopring/protocols/tree/master/packages/loopring_v3/contracts), and [ZKP circuits](https://github.com/Loopring/protocols/tree/master/packages/loopring_v3/circuit). If you have any questions, please email the Loopring Foundation at [foundation@loopring.org](email:foundation@loopring.org).
{% endhint %}


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs-protocol.loopring.io/resources/smart-contracts.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.