> For the complete documentation index, see [llms.txt](https://docs.nekodex.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.nekodex.org/nekodex-playground/docs-for-devs/dev-faq.md).

# Dev FAQ

## Where's the API?

Please see [API](/nekodex-playground/docs-for-devs/api.md)

## What does \`error xyz\` mean?

Error code definitions can be found here: \<tbc - link to library hopefully?>

## What are the contract addresses?

Please see [Contracts](/nekodex-playground/docs-for-devs/contracts.md)

1. back-end api
2.
3. Order gateway info
4. get account info
   1. margin ratio
   2. position info
5. ethers

## How to calculate spread

WIP

## How to calculate fees

WIP