Expired60% confidenceFactExact time
Claude Code attempts to establish a connection with Anthropic's servers on startup to perform identity verification and authorization checks via an OAuth authentication flow.
2
Sources
60%
Confidence
Medium-term (~90 days)
Relevance
7/2/2026
First Seen
Valid until: 9/30/2026(expired)
Sources
Claude Code Setup Guide for China: Environment Variables + Verification Bypass + Connecting Domestic Models
bilibili大虾照明月6/10/2026
Related Claims
UnverifiedIn normal mode, Claude Code forces users to verify identity through Anthropic's authentication server and bind a billing account76% similarUnverifiedClaude Code's login authorization process uses the OAuth 2.0 protocol.73% similarUnverifiedWhen Claude Code is launched for the first time, it guides the user to the official website to complete authorization via the OAuth 2.0 protocol, and upon successful authorization writes the token to the .claude.json file in the user's home directory.73% similarUnverifiedClaude Code officially binds to an Anthropic account via OAuth authentication by default.71% similarUnverifiedClaude Code requires an Anthropic API key configuration on first run to complete authentication69% similar
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