httpcodec is used at run time in 11 crates (of which 1 optionally). It's used only as a dev dependency in 2 crates.

Depender (with downloads and own rev deps) httpcodec version
2.7K ppaass-agent ^0
290 k3-wasm-sdk ^0.2.3
4 fibers_http_server ^0.2
hb ^0.2
1 fibers_http_client ^0.2
frugalos ^0.2
wstcp ^0.2
electrscash ^0.2.3
blockless-web-cgi ^0.2.3
mizumochi ^0.2
hi-push optional ^0.2.3
83K 7 rustracing_jaeger dev ^0.2
14K 1 cf-rustracing-jaeger dev ^0.2