# GET /supportedChainList (deprecated)

*Note*: this endpoint is deprecated, please use `/supportedChainInfo` instead.

GET get chain id list that Butter Router supports

### Request Parameters

None

### Responses Structure

The response contains the following fields:

| Field   | Type   | Description                                                                                                      |
| ------- | ------ | ---------------------------------------------------------------------------------------------------------------- |
| errno   | number | Error code. `0` means success, other values indicate errors, see [error code list](#errors).                     |
| message | string | Response message. If the request was successful it is `success`, otherwise it gives corresponding error message. |
| data    | array  | An array of the supported blockchain Ids.                                                                        |

### Request Example

```
GET /supportedChainList
```

### Response Examples

> 200 Response

```
{
  "errno": 0,
  "message": "string",
  "data": [
     1,
     137,
     56,
     22776,
     728126428,
     2649,
     8453,
     59144,
     42161,
     10,
     8217,
     196,
     1360108768460801,
     1360095883558913
  ]
}
```

#### Butter Chain ID explanation

| Chain Id         | Blockchain Name         |
| ---------------- | ----------------------- |
| 1                | Ethereum                |
| 137              | Polygon Mainnet         |
| 56               | BNB Smart Chain Mainnet |
| 22776            | MAP Protocol            |
| 728126428        | Tron                    |
| 8217             | Kaia                    |
| 2649             | AILayer                 |
| 8453             | Base                    |
| 59144            | Linea                   |
| 42161            | Arbitrum One            |
| 10               | OP Mainnet              |
| 196              | X Layer Mainnet         |
| 1360108768460801 | Solana Mainnet          |
| 1360095883558913 | BTC                     |

**Note**: the chain ID list may change over time as new chains are added or removed from the Butter Router's support, please request this endpoint to get the latest supported chain list.

**Please find all** [**ButterSwap API Reference**](https://bs-router-v3.chainservice.io/docs#/) **here.**


---

# 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.butternetwork.io/butter-swap-integration/butter-api-for-routing/get-supportedchainlist.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.