# iotube Bridge

iotube is a decentralized bridge facilitating the bi-directional transfer of tokens among the IoTeX network, Ethereum, Binance Smart Chain, Polygon, and Solana. **iotube** stands as a cornerstone for dApp developers on the IoTeX blockchain, offering a streamlined tool for their tokens to gain multi-chain functionality. By integrating with iotube, a token deployed on the IoTeX blockchain can be automatically spread across the most prominent blockchains, simplifying the creation of multi-chain dApps.

<figure><img src="https://content.gitbook.com/content/EyawgxYexImpo6OGzEiR/blobs/5NtufnQl3wDhQeATIFrn/image.png" alt="" width="375"><figcaption><p>iotube.org</p></figcaption></figure>

## **Key Features**

* **Open for All dApps:** Any dApp deployed on the IoTeX blockchain is eligible to submit their token for iotube support, paving the way for a more interconnected and accessible blockchain ecosystem.
* **Ease of Use:** With just a single deployment, your token is automatically made available across leading blockchains, eliminating the complexity typically associated with achieving multi-chain presence.
* **Expand Your Reach:** Tokens originally deployed on Ethereum, Binance Smart Chain, Polygon or Solana can seamlessly integrate into the IoTeX ecosystem. This expansion not only broadens the token's accessibility but also takes advantage of IoTeX's high-speed transactions and low fees.

By bridging the gap between IoTeX and other major blockchains, iotube empowers dApps and token holders with flexibility, reach, and efficiency.&#x20;

[↗ Go to iotube.org](https://iotube.org)

[↗ Submit your token to iotube](https://docs.iotube.org/introduction/token-submission)

{% hint style="info" %}
**iotube is fully opensource:**

[↗ Bridge Architecture](https://docs.iotube.org/introduction/overview-and-architecture)

[↗ View the source code on GitHub](https://github.com/iotubeproject/ioTube)
{% endhint %}

<figure><img src="https://content.gitbook.com/content/EyawgxYexImpo6OGzEiR/blobs/6IKeAhJ3dvk8CEURJb3o/image.png" alt="" width="345"><figcaption><p>Bridge Architecture Overview</p></figcaption></figure>


---

# 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.iotex.io/blockchain/ecosystem/iotube-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.