> For the complete documentation index, see [llms.txt](https://docs.yifi.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.yifi.io/api-reference/engine-names.md).

# Engine names

| In query / body (`type`, `engine`) | In responses (`engine`, `engineSupport`, `availableEngines`) |
| ---------------------------------- | ------------------------------------------------------------ |
| `cex`                              | `off-chain`                                                  |
| `dex`                              | `on-chain`                                                   |
| `private`                          | `private`                                                    |

`GET /v1/quote?type=` also accepts `all` and comma-separated combinations (`cex,dex`, `cex,dex,private`). Default when `type` is omitted: **`cex`**.

Network identifiers in query/body must match **`GET /v1/chains` → `chains[].id`** (canonical slug, case-insensitive). Token tickers are matched case-insensitively.