solana-serde is used at run time in 69 crates (of which 4 optionally). It is a direct run-time dependency in 5 crates. It's used only as a dev dependency in 8 crates.

Depender (with downloads and own rev deps) solana-serde version
315K 645 solana-sdk ^2.2.1
146K 20 solana-net-utils =2.2.1
11K 7 solana-storage-proto =2.2.1
10K 9 solana-storage-bigtable =2.2.1
250 1 solana-storage-reader =2.2.1