🧪 Claude / OpenAI / Gemini Connectivity Check
Requests go directly from your browser to the official API, using HTTP status codes to determine whether your key is valid, revoked, rate-limited, or experiencing upstream issues. Your API key stays in your browser and never passes through the TokenAPI Scan server.
Privacy note:After you click detect, the request is sent directly from your browser to the corresponding official API. If browser CORS prevents reading the response, this page will display "browser cannot read response" rather than falsely reporting success.
Select a service and enter its API key
Different services use different key formats — only test the one you want to verify. Leaving the field empty will not send any request.
Detection Targets
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