solana-keccak-hasher is used at run time in 102 crates (of which 4 optionally). It is a direct run-time dependency in 7 crates. It's used only as a dev dependency in 17 crates (of which 2 directly).

Depender (with downloads and own rev deps) solana-keccak-hasher version
390K 645 solana-program ^2.2.1
127K 2 solana-example-mocks ^2.2.1
44K 22 solana-bpf-loader-program =2.2.1
230 3 mollusk-svm-fuzz-fs ^2.2
210 2 mollusk-svm-fuzz-fixture-firedancer ^2.2
180 2 mollusk-svm-fuzz-fixture ^2.2
spherenet-program ^2.2.1
96K 7 solana-secp256k1-program dev ^2.2.1
17K 5 agave-precompiles dev ^2.2.1