> 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                         |
| 2017       | Service is busy, please try again later |
| 2018       | Risky from address                      |