It's used at build time in 2,709 crates (of which 242 optionally, 3 directly). It's used only as a dev dependency in 68 crates.

Number of dependers libsecp256k1-gen-ecmult version Downloads/month
943 0.3.0 334K
1,834 0.2.1 346K
Depender (with downloads and own rev deps) libsecp256k1-gen-ecmult version
720K 195 libsecp256k1 build ^0.3.0
1 tiny-ec build ^0.3.0
libsecp256k1test build ^0.3.0