ark-bls12-377 is used at run time in 6 crates (5 directly). It's used only as a dev dependency in 6 crates.

Depender (with downloads and own rev deps) ark-bls12-377 version
9.3K 7 ark-crypto-primitives dev ^0.3.0
8.3K 5 ark-groth16 dev ^0.3.0
2.5K 3 ark-nonnative-field dev ^0.3.0
1.0K 7 ark-poly-commit dev ^0.3.0
420 1 ark-ed-on-bls12-377 ^0.3.0
350 ark-bw6-761 ^0.3.0
290 ark-gm17 dev ^0.3.0
2 ark-cp6-782 ^0.3.0
1 ark-ed-on-cp6-782 ^0.3.0
bandersnatch dev ^0.3.0
voproof ^0.3.0