OpenClaw Claude Proxy Setup Guide: Every Working Option in May 2026 On April 4, 2026, Anthropic changed how Claude subscriptions work with third-party tools. If you use OpenClaw (or any AI agent framework) with a Claude Pro or Max subscription, you've probably already hit the "You're out of extra usage" wall. This guide covers every working fix as of May 2026 — what each option actually costs, how to set it up, and which one fits your workflow. What Actually Changed Before April 4, your Claude Pro/Max subscription covered all usage — including third-party tools like Nexus, Aider, and Claude Code. After the change, third-party tool requests get billed to "Extra Usage" at API rates ($3-15 per million tokens depending on the model). For light users, this might not matter much. For heavy agent users running 50-200+ requests per day, it means $200-400/month in unexpected charges.…