solana-serde is used at run time in 64 crates (of which 3 optionally). It is a direct run-time dependency in 5 crates. It's used only as a dev dependency in 7 crates.

Depender (with downloads and own rev deps) solana-serde version
281K 675 solana-sdk ^2.2.1
109K 20 solana-net-utils =2.2.1
12K 7 solana-storage-proto =2.2.1
10K 9 solana-storage-bigtable =2.2.1
550 1 solana-storage-reader =2.2.1