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Rabby: auto-discovery + “add by contract address”
Rabby typically auto-displays tokens across EVM networks without manual importing. If a token still doesn’t show up, users can manually add it as a custom token by searching the contract address in Rabby.
MetaMask developer docs (wallet_watchAsset):
EIP-747 specification:
Token lists (metadata format used by multiple apps)
Uniswap Token Lists specification (schema + guidance):