Claude Code OAuth Outage Locked Developers Out for Two Hours — API Stayed Up
At 2:44 p.m. UTC on March 11, 2026, thousands of developers found themselves locked out of Claude Code mid-session. No warning. No graceful degradation. Just a dead CLI and a 15-second timeout loop. The good news: if you were connecting via API key, you noticed nothing. The Claude API stayed fully operational throughout the two-hour incident — a detail that matters enormously for anyone designing resilient agentic workflows. What Actually Broke The failure was isolated to OAuth authentication — the browser-based login flow that Claude Code uses to connect to Anthropic’s servers. When developers ran /login, their browser would open, they’d click “Authorize,” see a confirmation… and then the CLI would hang until hitting its hardcoded 15-second timeout. ...