tc-rpc is used at run time in 23 crates (of which 2 optionally, 6 directly). It's used only as a dev dependency in 3 crates.

Depender (with downloads and own rev deps) tc-rpc version
2 node-cli ^2.0.0
1 node-rpc ^2.0.0
node-rpc-client ^2.0.0
node-template ^2.0.0
1 tc-finality-grandpa-rpc ^2.0.0
15 tc-service ^2.0.0