light-poseidon is used at run time in 1,118 crates (of which 30 optionally). It is a direct run-time dependency in 6 crates. It's used only as a dev dependency in 50 crates.

Depender (with downloads and own rev deps) light-poseidon version
24K 1 solana-poseidon ^0.2.0
1.0K 16 light-hasher ^0.2.0
340 48 miraland-program ^0.2.0
zk_database ^0.2.0
solana-program-fork-cleon-00 ^0.2.0
photon-indexer ^0.2.0