Anthropic Restricts Third-Party Tool Access to Claude: OpenClaw Ban Causes Developer Costs to Surge
US AI company Anthropic announced that starting at 15:00 US Eastern Time on April 4, third-party tools (including open-source project OpenClaw) will be banned from accessing Claude's subscription service. Related functions will need to be used via additional packages or API pay-per-use.
This adjustment has caused a surge in costs for developers relying on OpenClaw to build automated workflows: the original fixed subscription cost of about $20/month may skyrocket to hundreds or even thousands of dollars, shifting from a fixed model to an unlimited pay-per-use system.
The market believes this move is related to OpenClaw's founder joining OpenAI, and Anthropic is accelerating the promotion of its own tool ecosystem to replace third-party toolchains. Industry analysis points out that this reflects the trend of AI platforms tightening their ecosystems, with leading manufacturers strengthening control through vertical integration, leaving developers facing cost uncertainty and platform dependency risks.
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