OCP: Use your Claude Pro/Max subscription to power Cline, OpenCode, Aider, and any OpenAI-compatible IDE

#ai #opensource #productivity #programming

If you're paying for Claude Pro ($20/mo) or Max ($100-200/mo), you already have access to Opus, Sonnet, and Haiku. Why pay again for API access in your dev tools?

OCP (Open Claude Proxy) turns your subscription into a standard OpenAI-compatible API on localhost. Any tool that speaks the OpenAI protocol just works:

Cline          ──┐
OpenCode       ───┤
Aider          ───┼──→ OCP :3456 ──→ Claude CLI ──→ Your subscription
Continue.dev   ───┤
OpenClaw       ───┘

Setup (60 seconds)

git clone https://github.com/dtzp555-max/ocp.git
cd ocp && node setup.mjs

Then in your IDE:

OPENAI_BASE_URL=http://127.0.0.1:3456/v1

That's it. Your IDE thinks it's talking to OpenAI. Claude CLI handles auth through your existing subscription.

Built-in Usage Monitoring

ocp usage shows your session/weekly utilization without opening the browser:

Plan Usage Limits
  Current session       21% used (resets in 3h 12m)
  Weekly (all models)   45% used (resets in 4d 2h)

Model Stats
  opus     5 reqs  avg 32s  avg 42K prompt
  sonnet  18 reqs  avg 20s  avg 36K prompt

What tools work?

Anything that accepts OPENAI_BASE_URL:

Cline — VS Code AI assistant
OpenCode — Terminal-based coding
Aider — AI pair programming
Continue.dev — IDE extension
OpenClaw — Multi-agent orchestration
Any OpenAI SDK client

I've been running 6 agents + 3 IDEs off a single Max subscription simultaneously for weeks. Zero API cost.

Key features

Zero dependencies — single Node.js file, no npm install
8 concurrent requests — multiple tools share one subscription
Real-time monitoring — ocp usage, ocp health, ocp settings
Runtime tuning — change timeouts, concurrency, prompt limits without restart
Auto-start — launchd (macOS) / systemd (Linux)
Prompt guard — auto-truncates runaway context at 150K chars