grin_secp256k1zkp is used at run time in 95 crates. It is a direct run-time dependency in 6 crates.

Depender (with downloads and own rev deps) grin_secp256k1zkp version
400 10 cs_epic_util ^0.7.5
180 18 grin_util ^0.7.14
11 stack_test_epic_util ^0.7.5
10 stack_epic_util ^0.7.5
2 stack_test_epicboxlib ^0.7.4
9 epic_util ^0.7.5