> For the complete documentation index, see [llms.txt](https://docs.wproofreader.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.wproofreader.com/v6.12.0/api-reference/legacy-api-commands.md).

# Legacy API commands

* [Check spelling API](/v6.12.0/api-reference/legacy-api-commands/check-spelling-api.md)
* [Grammar check API](/v6.12.0/api-reference/legacy-api-commands/grammar-check-api.md)
* [HTTP response status codes](/v6.12.0/api-reference/http-response-status-codes.md)