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

# Developers

- [Core contracts](https://docs.gysr.io/developers/contracts.md): GYSR core contract reference
- [Deployment addresses](https://docs.gysr.io/developers/addresses.md): Core contract deployment addresses
- [Configuration](https://docs.gysr.io/developers/configuration.md): GYSR protocol global configuration
- [Interactions](https://docs.gysr.io/developers/interactions.md): Example calls directly to the GYSR core contracts
- [Error codes](https://docs.gysr.io/developers/error-codes.md): Core contract revert codes
- [Subgraph](https://docs.gysr.io/developers/subgraph.md): The GYSR subgraph