Anthropic blocks Claude Pro and Max subscribers from using their subscriptions with third-party AI agents like OpenClaw starting April 4, 2026, citing resource constraints.

Starting April 4, 2026 at 12 pm PT, Claude Pro ($20/month) and Max ($100-$200/month) subscribers can no longer connect their subscriptions to third-party agentic tools

Anthropic cited strain on compute and engineering resources, stating subscriptions weren't designed for the usage patterns of third-party tools

Boris Cherny, Head of Claude Code at Anthropic, emphasized the company is prioritizing direct customers and API users over third-party tool integrations to serve users reliably