Fix OpenClaw Missing Auth After Anthropic's April 4 OAuth Change — 20-Minute Guide
On April 4, 2026, Anthropic quietly rolled out an OAuth authentication change that broke a significant number of OpenClaw deployments overnight. No breaking change notice in the standard channels. No deprecation warning. Agents just stopped working. OpenClaw GitHub issue #19938 lit up within hours, and the community has been piecing together fixes ever since. This guide walks you through diagnosing the auth gap and getting your OpenClaw agent back online in under 20 minutes. ...