This reminds me of when Anthropic cut first-party access to Claude models in Windsurf as they were about to be acquired by Google.
https://www.reddit.com/r/ChatGPTCoding/comments/1l2y2kh/anth...
Anthropic blocks third-party use of Claude Code subscriptions
41–50 of 533 posts
Re: Anthropic blocks third-party use of Claude Code subscriptions
#42The API is not banned only using the Claude Code subscription is I actually tried this several months back to do a regular API request using the CC subscription token and it gave the same error message So this software must have been pretending to be Claude Code in order to get around that A Claude Code subscription should not work with other software, I think this is totally fair
> A Claude Code subscription should not work with other software. why not though? aren't you paying for the model usage regardless of the client you use?
That's not up to you or me. I think it's pretty clear by the phrase "Claude Code subscription" that it's meant for only "Claude Code". Why are you confused?
This could be so easily abused by companies who spend thousands of dollars per month for API costs you could just reverse engineer it and use the subscription tokens to get that down to a few hundred
Re: Anthropic blocks third-party use of Claude Code subscriptions
#43The API is not banned only using the Claude Code subscription is I actually tried this several months back to do a regular API request using the CC subscription token and it gave the same error message So this software must have been pretending to be Claude Code in order to get around that A Claude Code subscription should not work with other software, I think this is totally fair
> A Claude Code subscription should not work with other software. why not though? aren't you paying for the model usage regardless of the client you use?
But they get telemetry, feedback, good will, etc. That’s one reason why usage is discounted to a subscription fee.
Re: Anthropic blocks third-party use of Claude Code subscriptions
#44they didn't even ban non claude code clients they just banned certain tool names that opencode uses...
https://github.com/anomalyco/opencode/issues/7410#issuecomme...
Re: Anthropic blocks third-party use of Claude Code subscriptions
#45Earlier quoted context omitted.
There is no way to prevent people from using a custom client.
So now you just need to remove the “read” tool to authenticate?
Or call the tool "Read" and it works, according to an issue comment.
But actually the solution is checking out how the official client does it and then doing the same steps, though if people start doing this then Anthropic will probably start making it more difficult to monitor and reverse engineer.
It might not matter, as some people have a lot of expertice in this, but people might still get the message and move away to alternatives.
Re: Anthropic blocks third-party use of Claude Code subscriptions
#46The API is not banned only using the Claude Code subscription is I actually tried this several months back to do a regular API request using the CC subscription token and it gave the same error message So this software must have been pretending to be Claude Code in order to get around that A Claude Code subscription should not work with other software, I think this is totally fair
Came here to say this. Using opencode with the API works fine.
Same
Re: Anthropic blocks third-party use of Claude Code subscriptions
#47Earlier quoted context omitted.
> A Claude Code subscription should not work with other software. why not though? aren't you paying for the model usage regardless of the client you use?
That's not up to you or me. I think it's pretty clear by the phrase "Claude Code subscription" that it's meant for only "Claude Code". Why are you confused? This could be so easily abused by companies who spend thousands of dollars per month for API costs you could just reverse engineer it and use the subscription tokens to get that down to a few hundred
That phrase isn't the official one. It's "The Max Plan" which "combines Claude Desktop and mobile apps and Claude Code in one subscription".
Re: Anthropic blocks third-party use of Claude Code subscriptions
#48Re: Anthropic blocks third-party use of Claude Code subscriptions
#49No. Do you realize how much of a joke Claude code is? Under the hood. How they implemented client auth? Well let me tell you https://github.com/anomalyco/opencode/blob/dev/packages/open... You literally send your first message “you are Claude code” The fact that this ever worked was insane. Headline is more like anthropic vibes a bug and finally catches it.
There is no way to prevent people from using a custom client.
There are ways to make it painful. Though it would probably be painful for “legit” users, too.
Re: Anthropic blocks third-party use of Claude Code subscriptions
#50Earlier quoted context omitted.
> A Claude Code subscription should not work with other software. why not though? aren't you paying for the model usage regardless of the client you use?
That's not up to you or me. I think it's pretty clear by the phrase "Claude Code subscription" that it's meant for only "Claude Code". Why are you confused? This could be so easily abused by companies who spend thousands of dollars per month for API costs you could just reverse engineer it and use the subscription tokens to get that down to a few hundred
IDK if Anthropic wants to offer a service at below cost, I don't think they should gate keep which client you access that service over. Or in other terms, I won't use a service that locks me into a client I don't like.