It's used at build time in 2,371 crates (of which 245 optionally, 3 directly). It's used only as a dev dependency in 47 crates.

Number of dependers libsecp256k1-gen-ecmult version Downloads/month
885 0.3.0 349K
1,533 0.2.1 185K
Depender (with downloads and own rev deps) libsecp256k1-gen-ecmult version
546K 168 libsecp256k1 build ^0.3.0
230 tiny-ec build ^0.3.0
libsecp256k1test build ^0.3.0