I. ERC to NEP Protocol Mapping
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Overview
| Ethereum Standard | Neo Standard | Status | Notes |
|---|---|---|---|
| ERC-20 (Fungible Token) | NEP-17 | ✅ | Auto-detected. transfer(to,amount) warns to use 4-param NEP-17 form. |
| ERC-721 (NFT) | NEP-11 | ✅ | Auto-detected. transferFrom warns to use NEP-11 transfer(to,tokenId,data). |
ERC-20 approve/allowance | N/A | ⚠️ | Warning: not part of NEP-17 spec. Neo uses Runtime.checkWitness(). |
ERC-165 supportsInterface | Manifest supportedstandards | ⚠️ | Warning: unnecessary on Neo. Manifest-based discovery. |
| ERC-4626 (Tokenized Vault) | NEP-17 | ⚠️ | Vault logic compiles. ERC-20 interactions must use NEP-17 equivalents. |
| ERC-2981 (Royalty) | NEP-24 | ✅ | Auto-detected. Multiple royalty recipients supported. |
receive() / fallback() | onNEP17Payment() | ⚠️ | Diagnostic suggests callback pattern. |
For detailed standard migration guides, see the Standards Mapping.