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

# Utilities

- [Contract Addresses](https://docs.bkcoracle.com/utilities/contract-addresses.md)
- [Bitkub Mainnet](https://docs.bkcoracle.com/utilities/contract-addresses/bitkub-mainnet.md)
- [Bitkub Testnet](https://docs.bkcoracle.com/utilities/contract-addresses/bitkub-testnet.md)
- [Data Feed Proxy Contract Interface](https://docs.bkcoracle.com/utilities/data-feed-proxy-contract-interface.md)
- [AggregatorInterface’s Methods](https://docs.bkcoracle.com/utilities/data-feed-proxy-contract-interface/aggregatorinterfaces-methods.md)
- [AggregatorV3Interface’s Methods](https://docs.bkcoracle.com/utilities/data-feed-proxy-contract-interface/aggregatorv3interfaces-methods.md)
- [Key Hash](https://docs.bkcoracle.com/utilities/key-hash.md)