# Fraxtal Bridge

The bridging process for Fraxtal is derived from that of [Optimism](https://docs.optimism.io/builders/app-developers/bridging/standard-bridge). Assets going from Ethereum Mainnet to Fraxtal (L1StandardBridge & L1ERC721Bridge) usually only take a few minutes, but coming back from Fraxtal to Ethereum (L2StandardBridge & L2ERC721Bridge) can take 7 days. The same applies for messages (L1CrossDomainMessenger & L2CrossDomainMessenger). To mitigate this, Frax Ferry is also available for Fraxtal, and most users will opt to use the Ferry to come back to Ethereum, taking only 24-48 hrs instead of 7 days.

Fraxtal Bridge UI: <https://mainnet.frax.com/tools/bridge/deposit>\
Fraxtal Bridge Docs: <https://docs.frax.com/fraxtal/tools/bridges>

### Ethereum -> Fraxtal (\~ a few minutes)

| Type              | Contract               | Address (on Ethereum)                                                                                                 |
| ----------------- | ---------------------- | --------------------------------------------------------------------------------------------------------------------- |
| ETH/frxETH/ERC20s | L1StandardBridge       | [0x34C0bD5877A5Ee7099D0f5688D65F4bB9158BDE2](https://etherscan.io/address/0x34C0bD5877A5Ee7099D0f5688D65F4bB9158BDE2) |
| ERC721s           | L1ERC721Bridge         | [0xa9B5Fb84B7aeAF0D51C95DB04a76B1D4738D0eC5](https://etherscan.io/address/0xa9B5Fb84B7aeAF0D51C95DB04a76B1D4738D0eC5) |
| Messages          | L1CrossDomainMessenger | [0x126bcc31Bc076B3d515f60FBC81FddE0B0d542Ed](https://etherscan.io/address/0x126bcc31Bc076B3d515f60FBC81FddE0B0d542Ed) |

### Fraxtal -> Ethereum (7 days)

| Type              | Contract               | Address (on Fraxtal)                                                                                                  |
| ----------------- | ---------------------- | --------------------------------------------------------------------------------------------------------------------- |
| ETH/frxETH/ERC20s | L2StandardBridge       | [0x4200000000000000000000000000000000000010](https://fraxscan.com/address/0x4200000000000000000000000000000000000010) |
| ERC721s           | L2ERC721Bridge         | [0x4200000000000000000000000000000000000014](https://fraxscan.com/address/0x4200000000000000000000000000000000000014) |
| Messages          | L2CrossDomainMessenger | [0x4200000000000000000000000000000000000007](https://fraxscan.com/address/0x4200000000000000000000000000000000000007) |


---

# 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.frax.finance/cross-chain/fraxtal-bridge.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.