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Claude Pro subscription OAuth tokens blocked in third-party tools

9/10 Critical

Anthropic 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.

Category
auth
Workaround
none
Stage
deploy
Freshness
emerging
Scope
framework
Upstream
wontfix
Recurring
Yes
Buyer Type
team
Maintainer
abandoned

Sources

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