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App integration

headlong

Core SDKs/libraries

ABI encoding · SDK · Performance optimization

esaulpaugh/headlong (opens in a new tab)

headlong is a Java library for encoding and decoding contract ABI calldata and RLP, tuned for throughput in JVM services. Java builders add it when a backend has to process a high volume of Ethereum calls.

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Lightweight, modular, reactive Java and Android library for Ethereum. JSON-RPC client API, wallet support, and auto-generated Solidity contract wrappers for deployment and interaction. Includes CLI, Maven/Gradle plugins, and ENS support.

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