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Product news: Claude Code 2.1.231 repairs MCP OAuth sign-in for pre-registered clients

Anthropic

AI Product and Learning Report

Product news: Claude Code 2.1.231 fixes an OAuth redirect-URI mismatch that could block MCP sign-in for services using pre-registered clients. Reliable authorization can make approved integrations usable, but it does not broaden legitimate access. Education teams should validate exact redirect URIs, scopes, account roles, token storage, revocation, audit logs, and data minimization before connecting institutional services.