

CAREFUL: anthropic built a signature system into claude code. every API request gets signed with a cch= hash thats computed in compiled zig code if you recompile the client yourself it just sends zeros instead. they can instantly tell its not legit right now you literally can't use your anthropic sub on ANY third party tool. only official claude code or pay for api credits separately currently decompiling the official binary to reverse this - would be huge for all third party clients like opencode, openclaw etc to fully bypass anthropic enforcement and actually use the tokens you're already paying for














