solana-loader-v2-interface is used at run time in 72 crates (of which 4 optionally). It is a direct run-time dependency in 3 crates. It's used only as a dev dependency in 17 crates.

Depender (with downloads and own rev deps) solana-loader-v2-interface version
353K 619 solana-program ^2.2.1
143K 136 solana-transaction-status =2.2.1
120 spherenet-program ^2.2.1