> For the complete documentation index, see [llms.txt](https://docs.butternetwork.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.butternetwork.io/butter-swap-integration/butter-api-for-routing/error-code-list.md).

# Error Code List

| error code | error type             |
| ---------- | ---------------------- |
| 2000       | Parameter error        |
| 2001       | The Chain not Support  |
| 2002       | The Token not Support  |
| 2003       | No Route Found         |
| 2004       | Insufficient Liquidity |
| 2005       | Slippage Out of Range  |
| 2006       | Insufficient amount    |
| 2007       | Invalid address        |