Claude Pro subscription OAuth tokens blocked in third-party tools
9/10 CriticalAnthropic restricted subscription OAuth tokens to work only with the official Claude Code CLI, blocking tools like OpenCode, Moltbot, and integrations in Cursor. Users who built workflows around third-party tools were locked out mid-project, forcing them to either downgrade subscriptions or abandon the platform entirely.
Sources
- I kind of lost interest in local models. Then Anthropic started saying I ...
- Anthropic made a big mistake - The Software Archæologist
- Anthropic's Latest Move: Why OpenCode Users Are Worried
- Navigating the Anthropic API: A Developer's Compass in a Shifting Landscape - Oreate AI Blog
- Anthropic's Walled Garden: The Claude Code Crackdown
- Why This Matters
Collection History
Query: “What are the most common pain points with Anthropic API for developers in 2025?”3/30/2026
Anthropic deployed "strict new technical safeguards" blocking subscription OAuth tokens from working outside their official Claude Code CLI. Tools like OpenCode had been spoofing the Claude Code client identity... That stopped working overnight. ...Users who'd invested in OpenCode workflows found themselves locked out mid-project.
Created: 3/30/2026Updated: 3/30/2026