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4Byte
4Byte
Web3 SDKs

4Byte

Ethereum four-byte signature search by Snake Charmers.

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What is 4Byte?

The 4byte database contains function signatures and mappings for event signatures, all offered free of license for search or scraping. Developers can map bytes signatures results from searches back to their human-readable sources and versions. There are currently 1,448,930 (and counting) signatures in the database.

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App store listings are independently reviewed and written by Alchemy using a combination of inbound submissions, editorial research, public project sources, and third-party directories, including ecosystem data from The Grid under the Open Database License, DefiLlama, DappRadar, Reown, and chain ecosystem pages.

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