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Anthropic to limit Using third-party harnesses with Claude subscriptions

guiyuwei Friday, April 03, 2026

Starting April 4 at 12pm PT / 8pm BST, you’ll no longer be able to use your Claude subscription limits for third-party harnesses including OpenClaw. Instead, they’ll require extra usage.

Your subscription usage still covers all Claude products, including Claude Code and Claude Cowork. To keep using third-party harnesses with your Claude plan, enable extra usage for your account. This will be enforced April 4 starting with OpenClaw, but this policy applies to all third-party harnesses and will be rolled out to more shortly (read more).

To make the transition easier, we’re offering a one-time credit for extra usage equal to $200 on your Team plan. Redeem your credit by April 17. We’re also introducing discounts when you pre-purchase bundles of extra usage (up to 30%) for your team.

We’ve been working to manage demand across the board, but these tools put an outsized strain on our systems. Capacity is a resource we manage carefully and we need to prioritize our customers using our core products. We appreciate your support as we make these changes.

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