# Utility

- [How to sign messages?](/how-to-integrate/guides/utility/how-to-sign-messages.md)
- [EVM](/how-to-integrate/guides/utility/how-to-sign-messages/evm.md)
- [Solana](/how-to-integrate/guides/utility/how-to-sign-messages/solana.md)
- [Aptos](/how-to-integrate/guides/utility/how-to-sign-messages/aptos.md)
- [EIP-6492 Compatible Signatures](/how-to-integrate/guides/utility/how-to-sign-messages/eip-6492-compatible-signatures.md): Fetcch supports EIP-6492 for pre-deployed smart accounts
- [How to generate & verify proofs for identity?](/how-to-integrate/guides/utility/how-to-generate-and-verify-proofs-for-identity.md)