> For the complete documentation index, see [llms.txt](https://docs.llama.fi/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.llama.fi/list-your-project/how-to-add-a-new-blockchain.md).

# How to add a new Blockchain

{% hint style="info" %}
For non-EVM chains just follow the same steps but instead of picking the shortName from chainlist, make one up that adjusts to your chain.
{% endhint %}

#### 1. Fork the [DefiLlama-Adapters](https://github.com/DefiLlama/DefiLlama-Adapters) repo

<https://github.com/DefiLlama/DefiLlama-Adapters>

#### 2. **Add the Blockchain to `chains.json`**

You need to add the name of the blockchain in the `projects/helper/chains.json` file to recognize it as a new supported chain.

**Example Change**:

```json
"chains": [
  "ethereum",
  "binance-smart-chain",
  "polygon",
  "zklink",  // Add your new blockchain here. 
  "fraxtal",
  "zksync"
]
```

You should use the field shortName from <https://chainlist.org/rpcs.json>

***

#### 3. **Add Token Mappings in `tokenMapping.js`**

Add the token mappings for the new blockchain to the [`projects/helper/tokenMapping.js` file](https://github.com/DefiLlama/DefiLlama-Adapters/blob/main/projects/helper/tokenMapping.js#L41). This file maps token addresses to their respective identifiers for accurate tracking and handling.

**Example Change**:

```js
const fixBalancesTokens = {
  zklink: {
    [ADDRESSES.zklink.WETH]: { coingeckoId: "ethereum", decimals: 18 },
  },
  ozone: {
     '0x83048f0bf34feed8ced419455a4320a735a92e9d': { coingeckoId: "ozonechain", decimals: 18 }, 
  },
};
```

This ensures tokens on the new blockchain (`zklink`) are properly recognized, including their `coingeckoId` for price tracking and their decimals.

***

#### 4. Submit a Protocol **using your blockchain (e.g.,** projects/savmswap/index.j&#x73;**)**

Lastly, update the project’s configuration file to add your new blockchain as a valid supported chain. If we don't track any protocol on your blockchain, we can not add it. So make sure to add the new chain under a current project or add a new adapter to track the project on your blockchain

**Example Change**:

```js
const { uniTvlExport } = require('../helper/unknownTokens')

module.exports = uniTvlExport('zklink', '0x1842c9bD09bCba88b58776c7995A9A9bD220A925') //blockchain, factory address
```

5. Submit a Pull Request


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## 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, and the optional `goal` query parameter:

```
GET https://docs.llama.fi/list-your-project/how-to-add-a-new-blockchain.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

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.