openqwencode

Local OpenCode plugin for qwen.ai OAuth, with the same persistent credential cache style as qwen-code and opencode-qwen-auth, but without the legacy built-in Qwen providers/models.

This plugin builds on the newer Qwen Code direction and refresh work, adapted for OpenCode as a dedicated plugin-based integration.

It was also created because older OpenCode Qwen auth plugins like 1579364808/opencode-qwen-auth and gustavodiasdev/opencode-qwencode-auth no longer work.

Reviewed external references

This plugin was built after reviewing the main public Qwen/OpenCode auth implementations and forks, not just a single upstream:

• QwenLM/qwen-code: primary upstream reference for OAuth flow, credential persistence, and refresh behavior
• foxswat/opencode-qwen-auth: strongest reference for resilience improvements and OpenCode integration ideas
• RunMintOn/OpenCode-Qwen-Proxy: useful reference for throttling and burst-handling behavior
• 1579364808/opencode-qwen-auth: reviewed as an older baseline
• gustavodiasdev/opencode-qwencode-auth: reviewed as another older OpenCode-oriented implementation

The current design intentionally follows the strongest parts of those implementations while keeping the plugin small, current, and focused on the official free Qwen OAuth path.

Language rule

• Everything in this project must be written in English.

What this plugin does

• login provider: openqwencode
• model path: openqwencode/coder-model
• only the official free OAuth model: coder-model
• image input through the same coder-model
• tokens stored in qwen-code-compatible format in ~/.qwen/oauth_creds.json
• automatic refresh so you do not have to log in again every day
• atomic writes + lockfile so multiple processes do not corrupt credentials
• in-memory cache with periodic disk sync
• backoff for 429 and temporary server errors
• cancellable auth polling, including process-signal cancellation
• removes/overrides legacy qwen and qwen-code providers

OpenCode config

{
  "$schema": "https://opencode.ai/config.json",
  "disabled_providers": ["qwen", "qwen-code"],
  "plugin": ["file:///ABSOLUTE/PATH/TO/openqwencode"]
}

Login:

opencode auth login -p openqwencode

Then use:

opencode --model openqwencode/coder-model

Install and use in OpenCode

Install the package:

npm install openqwencode

Add it to your OpenCode config:

{
  "$schema": "https://opencode.ai/config.json",
  "disabled_providers": ["qwen", "qwen-code"],
  "plugin": ["openqwencode"]
}

Authenticate:

opencode auth login -p openqwencode

Run OpenCode with the plugin model:

opencode --model openqwencode/coder-model

If you upgraded from an older published version and OpenCode still does not see the model, clear the cached package and refresh:

rm -rf ~/.cache/opencode/packages/openqwencode@latest ~/.cache/opencode/node_modules/openqwencode
opencode models --refresh

Notes

• upstream QwenLM/qwen-code only uses coder-model for the free OAuth flow
• qwen3-coder-plus, qwen3-vl-plus, and vision-model are intentionally no longer exposed
• the plugin injects the Qwen OAuth headers and a minimal Qwen Code system message
• the local credential file is the primary source of truth; OpenCode auth state is only used as a bootstrap/migration path
• project rules, release workflow, and backlog now live in AGENTS.md