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# Ethereum standards

| Standard | What it means in WalletChan |
| --- | --- |
| [EIP-1193](https://eip.tools/eip/1193) | The injected Ethereum provider request/event interface |
| [EIP-6963](https://eip.tools/eip/6963) | Multiple-wallet discovery so dapps can identify WalletChan |
| [EIP-3085](https://eip.tools/eip/3085) | Dapp asks to add an EVM network; WalletChan reviews metadata |
| [EIP-3326](https://eip.tools/eip/3326) | Dapp asks to switch the connected chain |
| [EIP-747](https://eip.tools/eip/747) | Dapp asks to watch/add a token |
| [EIP-712](https://eip.tools/eip/712) | Structured typed-data signing v3/v4 |
| [EIP-4361](https://eip.tools/eip/4361) | Sign-In with Ethereum parsing and validation |
| [EIP-7702](https://eip.tools/eip/7702) | EOA smart-account delegation for compatible local accounts |
| [ERC-5792](https://eip.tools/eip/5792) | Wallet capabilities, send-calls batches, and bundle status |
| [ERC-7821](https://eip.tools/eip/7821) | Compatible atomic execution used by smart-account batches |
| [ERC-7715](https://eip.tools/eip/7715) | Constrained reusable dapp permissions |
| [ERC-7730](https://eip.tools/eip/7730) | Human-readable clear-signing descriptors |
| [ERC-4337](https://eip.tools/eip/4337) | UserOperation/paymaster route for supported token-paid gas |
| [EIP-747](https://eip.tools/eip/747) / `watchAsset` | Explicit token-add request |
| [ERC-4804](https://eip.tools/eip/4804) / [ERC-5219](https://eip.tools/eip/5219) | Supported onchain website resolution/content |

## Signature methods

WalletChan supports `personal_sign`, `eth_signTypedData_v3`, and
`eth_signTypedData_v4`. It rejects deprecated `eth_sign` and typed-data v1.

## Standards do not imply universal availability

Account type, network activation, smart-account delegate, Safe deployment,
WalletConnect namespace, and remote-service support can make one method
unavailable. Check [Wallet behavior by account](/reference/account-behavior).