secp256k1-sys is used at run time in 1,910 crates (of which 561 optionally). It is a direct run-time dependency in 5 crates. It's used only as a dev dependency in 43 crates.

Number of dependers secp256k1-sys version Downloads/month
471 0.10.1 353K
516 0.9.2 235K
359 0.8.1 163K
44 0.7.0 1.6K
260 0.6.1 60K
50 0.5.2 23K
191 0.4.2 21K
29 0.3.0 1.5K
33 0.1.2 2.1K
Depender (with downloads and own rev deps) secp256k1-sys version
887K 376 secp256k1 ^0.10.0
7.3K 1 secp256k1-zkp-sys ^0.10.0
360 8 dlc ^0.10.0
300 2 ddk-dlc ^0.10.0
110 1 koibumi-secp256k1 ^0.10.0