Anthropic Blocks Third-Party Access to Claude Code Subscriptions

Anthropic cracked down on third-party apps spoofing its subsidized Claude Code subscriptions, like the open-source OpenCode CLI, because they violate terms of service and lack debugging telemetry.

Developers including Basecamp co-founder DHH called the policy customer-hostile and pushed for reconsideration, while Anthropic staff defended the plans as support for human creators, not bots.

OpenCode quickly adapted with a new version allowing ChatGPT Plus users to connect directly, highlighting the growing tensions in AI coding tool ecosystems.