BlockBeats News, April 4th: AI company Anthropic announced that starting from 3:00 PM EST on April 4th, it will prohibit third-party tool access through the Claude subscription service, including the open-source project OpenClaw. The new policy requires the related functions to be available only through an additional package or API usage-based billing.
This adjustment means that many developers and teams relying on OpenClaw to build automated workflows will transition from the original fixed subscription cost model to an unlimited usage-based payment system, resulting in a significant increase in overall usage costs. Some developers have stated that the original cost of around $20/month could surge to hundreds or even thousands of dollars.
The market generally believes that this move is related to OpenClaw founder Peter Steinberger's recent joining of OpenAI. Meanwhile, Anthropic is accelerating the promotion of its proprietary tool ecosystem, including the Claude native integration solution, to replace third-party toolchains.
It is worth noting that Anthropic has previously gradually tightened third-party access through technical restrictions, service term updates, and feature replacements. This policy is seen as a "final blockade" and will be expanded to more tools.
Industry analysis indicates that this event reflects the intensifying trend of "ecosystem tightening" in AI platforms, with leading vendors strengthening control through vertical integration. At the same time, developer ecosystems are facing cost uncertainties and increased platform dependency risks, which may further drive some users to switch to more open and alternative solutions.
