Anthropic Cut Off Nexus. Here's What Actually Happened and How to Fix It If you've been running Nexus with a Claude backend, you already know April 2026 was a rough month. Anthropic quietly updated their usage policies, and a wave of OpenClaw users found their API access restricted, throttled, or outright blocked. Some woke up to dead sessions. Others got vague "usage policy" emails with no clear path forward. This isn't a conspiracy. It's a business decision — and understanding it is the first step to building something more resilient. Here's what happened, why it happened, and what you can actually do about it without going back to paying Anthropic API rates or losing your OpenClaw setup. What Anthropic Did (And Why) Anthropic has been tightening API access controls since late 2025. The proximate cause: a significant number of consumer-tier Claude accounts were being used to power multi-user setups, automation pipelines, and agent frameworks at scale.…