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

# Developer

- [crTokens](https://docs.cream.finance/developer/crtokens.md): Shout out to our community member Ivan Flores for the hard work and contribution
- [Key Events](https://docs.cream.finance/developer/key-events.md)
- [Error Codes](https://docs.cream.finance/developer/error-codes.md)
- [crTokens](https://docs.cream.finance/developer/error-codes/crtokens.md)
- [Comptroller](https://docs.cream.finance/developer/error-codes/comptroller.md)
- [Subgraph (GraphQL)](https://docs.cream.finance/developer/subgraph-graphql.md)
- [Testnet](https://docs.cream.finance/developer/testnet.md)