ark-relations-zypher is used at run time in 13 crates (of which 7 optionally). It is a direct run-time dependency in 10 crates.

Depender (with downloads and own rev deps) ark-relations-zypher version
8 ark-r1cs-std-zypher ^0.4.0
2 ark-snark-zypher ^0.4.0
1 ark-crypto-primitives-zypher ^0.4.0
1 ark-groth16-zypher ^0.4.0
1 zshuffle ^0.4
6 ark-bn254-zypher dev ^0.4.0
4 ark-ed-on-bn254-zypher dev ^0.4.0
1 ark-secp256k1-zypher dev ^0.4.0
ark-secq256k1-zypher dev ^0.4.0
ark-ed-on-bls12-381-zypher dev ^0.4.0