Opencode With Claude — Development skill for Claude Code

opencode-with-claude

[](LICENSE)

Use [OpenCode](https://opencode.ai) with your [Claude Max](https://claude.ai) subscription.

What this is

An [OpenCode](https://opencode.ai) plugin that runs [Meridian](https://github.com/rynfar/meridian) *(formerly opencode-claude-max-proxy)* for you: **start OpenCode once** and the proxy comes up with it; **quit OpenCode** and the proxy stops. No separate proxy CLI or Docker container to manage.

**Compared to running the proxy yourself:**

• One process to think about — OpenCode owns the proxy lifecycle (start/stop) instead of you juggling two things.
• Several OpenCode windows at once — each instance gets its own proxy on an OS-assigned port, so ports do not collide and you avoid session issues from sharing one proxy across instances.
• Explicit session headers — the plugin adds session tracking on outgoing API calls, so the proxy does not have to infer sessions from fingerprints alone.

How It Works

┌─────────────┐              ┌────────────────────┐       ┌─────────────────┐
│  OpenCode   │─────────────▶│  Claude Max Proxy  │──────▶│    Anthropic    │
│  (TUI/Web)  │ :3456 / auto │   (local server)   │  SDK  │    Claude Max   │
│             │◀─────────────│                    │◀──────│                 │
└─────────────┘              └────────────────────┘       └─────────────────┘

Quick Start

The plugin hooks into OpenCode's plugin system. When OpenCode launches, it starts the proxy, configures the Anthropic provider, and cleans everything up on exit.

**1. Install the plugin**

npm install -g opencode-with-claude

**2. Authenticate with Claude (one-time)**

npm install -g @anthropic-ai/claude-code
claude login

**3. Add to your `opencode.json`**

Global (`~/.config/opencode/opencode.json`) or project-level:

{
  "$schema": "https://opencode.ai/config.json",
  "plugin": ["opencode-with-claude"],