VibeCode Claude - FAQ EN

Main article:

https://telegra.ph/Api-Vibecode-Claude-EN-04-14

Errors and questions:

1. VPN is the most common issue. All our services run on Cloudflare, so nothing will work without a VPN. Even the dashboard. Try changing 2–3 different VPNs before saying that nothing works.
2. You are connecting the wrong provider. You may have selected plain Anthropic and entered the key, which is why it returns 401 or 403. Our service will only work if you specify both our base URL (https://api.vibecode-claude.online) and the API key. If you entered only the API key, then you are 100% connecting not to our service, but to something else. The provider must always be either Custom Provider or OpenAI Compatible — specifically Compatible, not just OpenAI!!! And it must ask you to specify a URL. Without that, nothing will work.
3. If Claude Code CLI returns 401 (Invalid Key), it means you did not click Yes at the last step and clicked No instead. This is easy to confuse because No is selected by default and highlighted in green. In that case, completely reinstall Claude and delete all local folders. If that does not help (because the key is cached separately and added to a local blacklist, and we do not know exactly where), message me directly and I will issue another key, but that may take time.
4. If it returns 503, the problem is on our service side. If it stays down for more than 1–2 hours, contact me using the provided contacts.
5. If it returns 502, our service is down. Same as above.
6. Error 400 means the tools used by your application are incompatible with our API. This happens rarely, and we are working on it. Just repeat the request again. Better yet, message me and I will fix it. This may be either an issue on our provider’s side or in your application, and it always needs to be checked separately. Such errors are already very rare.
7. Error 429 means you are sending too many small requests. This happens rarely and only if you use the key to serve chat bots or for resale. We do not allow that without prior approval. In other words, our keys are intended ONLY for coding. We proxy the API from real AWS accounts and bind them to your key. Their API cannot be used for chat bots and hundreds of small requests — only for normal coding. If you are simply programming normally, you should not be able to hit a rate limit at all under any circumstances (contact support if that happens).
8. Error 401 Key is deactivated means your balance has run out. Check the dashboard, review your requests, and make sure that is the case. If there is still balance left, contact me using the provided contacts.
9. Any other errors — CHANGE YOUR VPN. Very often the issue is simply a bad or cheap VPN, and because of that Claude does not let you in. Try changing 2–3 different VPNs. If that does not help, then send a screenshot and message me.
10. We have default fallback models in case you send a broken or incorrect model name. For example, if you send gpt-4.1-mini (which we do not have), the request will go to the default model gpt-5.4-mini. If you make a typo, for example gpt-5.4-high (while we only have xhigh), the request will also go to gpt-5.4-mini. You can see requests in the dashboard, so verify the exact model name you are sending. For Claude, the default model is claude-haiku-4.5, and for Gemini it is gemini-pro-3.1-low.
11. Our models do NOT support image generation or image recognition. Only chat and coding (text). Video is also not supported, including Gemini models.
12. The Claude Code extension in VS Code also works. First, set everything up according to the Claude Code CLI instructions. Once it works for you (the model gives its first response), turn on the extension — everything will be pulled in automatically, and you will not need to configure anything there separately. The main thing is: do not try to set everything up from scratch through the extension — most likely it simply will not work, and you may also break something.
13. With each new purchase, you receive a new key. The balance is NOT added to the old one. So you will have to replace it. If you buy often and in large amounts, we recommend simply taking keys with a higher limit.
14. Any errors like Connection Error, ERR_CONN_RESET, and so on — in 99% of cases you either need to enable a VPN, change the location, or try another one. The best choice is usually the US.
15. Cursor support: there are important specifics here. Cursor is a VS Code fork, so everything that works in VS Code will also work there — the Claude extension, Kilo Code, Roo Code, and so on. You can use it without any issues. I recommend Claude. No subscription is required for this, and you do not even need to log into an account. BUT you can also integrate our service natively there (so that it works like regular Cursor), but this setup is only available on paid plans (Pro and above). In Models below, choose Use own API Key → then OpenAI → then override base URL. At the same time, Cursor does not allow using MCP in this mode (these are official limitations on their side). Everything else (subagents, tools) works, but not 100% stably.