Using Claude Code? Anthropic plans to charge more for third-party integrations like OpenClaw

Anthropic is rising its subscription price if Claude users want access to OpenClaw

Anthropic is set to introduce a significant pricing change for users of its Claude Code service, signalling a shift in how developers interact with third-party tools. According to a customer email shared on Hacker News, the company has begun restricting the use of subscription-based limits for external integrations such as OpenClaw.

Effective from noon Pacific time on April 4, Claude Code subscribers "no longer be able to use your Claude subscription limits for third-party harnesses including OpenClaw." Instead, any usage through these integrations will be billed separately under a pay-as-you-go model.

While OpenClaw is the first to be affected, Anthropic indicated that the policy will extend to other third-party harnesses in the near future. The move appears to be part of a broader recalibration of how the company allocates compute resources and manages growing demand.

Boris Cherny, head of Claude Code, addressed the decision on X, stating that the company's "subscriptions weren't built for the usage patterns of these third-party tools." He added that Anthropic is attempting "to be intentional in managing our growth to continue to serve our customers sustainably long-term."

The change arrives at a sensitive moment for the developer ecosystem around Claude Code. OpenClaw creator Peter Steinberger recently announced his move to OpenAI, one of Anthropic's key rivals. Despite his departure, OpenClaw will remain an open-source project with backing from OpenAI.

Steinberger did not hold back in his reaction to the pricing update. He said he and OpenClaw board member Dave Morin "tried to talk sense into Anthropic" but ultimately only managed to delay the rollout by a week. He also criticised the company's approach, remarking: "Funny how timings match up, first they copy some popular features into their closed harness, then they lock out open source."

Anthropic, however, has pushed back against suggestions that the move is anti-open source. Cherny insisted that the Claude Code team remains supportive of the ecosystem, noting that team members are "big fans of open source." He added that he had "just put up a few (pull requests) to improve prompt cache efficiency for OpenClaw specifically."

"This is more about engineering constraints," Cherny said, while also emphasising that the company is offering full refunds to affected subscribers. "We know not everyone realised this isn't something we support, and this is an attempt to make it clear and explicit."

The development reflects intensifying competition in the AI coding assistant market, where companies are balancing rapid adoption with infrastructure costs. It also follows recent moves by rivals to reallocate resources and sharpen their focus on developers and enterprise users.

For now, developers relying on third-party integrations with Claude Code may need to reassess their workflows, and budgets, as Anthropic redraws the boundaries of its subscription model.