open-fastrlp is used at run time in 229 crates (of which 14 optionally). It is a direct run-time dependency in 4 crates. It's used only as a dev dependency in 10 crates.

Depender (with downloads and own rev deps) open-fastrlp version
256K 86 ethers-core ^0.1.4
480 2 foundry-config ^0.1
thor-devkit ^0.1.4
cbrzn-ethers-core ^0.1.4