zkp-u256 is used at run time in 10 crates.

Depender (with downloads and own rev deps) zkp-u256 version
140 debridge-u256 ^0.2.1
2 zkp-hash ^0.2.0
2 zkp-elliptic-curve ^0.2.0
1 zkp-elliptic-curve-crypto ^0.2.0
zkp-stark ^0.2.0
world-id-marbles ^0.2.1
marbles-rs ^0.2.1
sutro ^0.2.0
4 zkp-primefield ^0.2.0
1 zkp-merkle-tree dev ^0.2.0