Why did Anthropic cut off OpenClaw usage?

Anthropic has tightened how Claude subscribers can use third-party agent tools. Starting April 4, Claude subscriptions were described as no longer covering usage on OpenClaw, and users were told they would need to pay extra to use OpenClaw with Claude's models.

The immediate effect is pricing and access friction: OpenClaw users can still connect to Claude, but the economics change. Subscribers on Claude Pro or Max were blocked from using their flat-rate plans with OpenClaw agent frameworks under the new policy, shifting OpenClaw usage into an add-on model rather than being included.

Anthropic's stated motive in the provided summaries is capacity and cost control -- specifically, managing model throughput. The policy was also characterized as a response to the rising popularity of OpenClaw and third-party "agentic" tool integrations that can drive substantial inference demand.

Why it matters:

In addition to the cutoff, there were multiple related pieces in the story pool about Anthropic's scramble around OpenClaw, including concerns about security and potential vulnerabilities, and ongoing changes to how third-party tool integrations are allowed.

Overall, the move turns OpenClaw usage from an included perk for some Claude customers into a separately metered or upsell component -- an approach that aligns revenue with inference demand but raises the barrier to experimenting with agentic systems.