# SDK

This tutorial explains how the Thanos SDK can bridge ERC-20 tokens from L1 to L2. The Thanos SDK is an easy way to add bridging functionality to your javascript-based application. It also provides some safety rails to prevent common mistakes that could cause tokens to be made inaccessible.

The API documentation is on [Thanos SDK Docs](https://tokamak-network.github.io/thanos-sdk-docs/).

Depending on what you want to deposit or withdraw your asset, we have three guides: