bitcoinsecp256k1-scalar is used at run time in 91 crates. It is a direct run-time dependency in 6 crates.

Depender (with downloads and own rev deps) bitcoinsecp256k1-scalar version
270 7 bitcoinsecp256k1-ec ^0.1.16-alpha.0
260 11 bitcoin-secp256k1 ^0.1.16-alpha.0
260 5 bitcoinsecp256k1-keys ^0.1.16-alpha.0
bitcoinsecp256k1-bench ^0.1.16-alpha.0
bitcoinsecp256k1-recovery ^0.1.16-alpha.0
bitcoinsecp256k1-schnorr ^0.1.16-alpha.0