Universal Chat Provider

The VS Code extension that brings your Claude, ChatGPT / Codex, Antigravity, and more subscriptions into GitHub Copilot Chat
_{No API key — just OAuth‑login the subscriptions you already pay for.
…and use them to write your Git commit messages, too.}

Features  ·  Quick start  ·  Logins  ·  Configuration

_{Powered by CLIProxyAPI}

Features

• Native model picker — your subscription models appear under Universal Chat Provider in Copilot Chat, with context, output, tool, image, and reasoning metadata.
• Reasoning support — models with multiple reasoning levels use VS Code's built-in selector, and emitted reasoning summaries stream into a collapsible thinking block.
• Utility model — point Copilot's commit messages, chat titles, and summaries at your subscription models with one command. No Copilot subscription required.
• Zero setup (managed mode) — the extension downloads, verifies, and supervises the proxy for you; one shared server across all windows.

Supported logins

Sign in with any subscription you already have — no API key:

• 🟣 Claude — Claude Code / Pro / Max
• 🟢 Codex — ChatGPT Plus / Pro
• ⚪ Grok — Grok Build
• 🟡 Kimi — Moonshot
• ⚫ Antigravity

[!WARNING] Use entirely at your own risk and discretion. This extension routes chat through your personal AI subscription accounts (Claude, ChatGPT / Codex, Antigravity, …) over OAuth. Accessing these subscriptions outside their official apps may violate the providers' Terms of Service and could result in rate limiting or account suspension. You alone are responsible for how you use it.

Quick start

Requires VS Code 1.124+ and the GitHub Copilot Chat extension.

1. Install — get Universal Chat Provider from the VS Code Marketplace. Prefer to build it yourself? See Development.
2. Add an account — accept the Add Account prompt (or run Universal Chat Provider: Add Account), pick a provider, and complete OAuth in your browser. Models refresh automatically.
3. Chat — open Copilot Chat and select a model under Universal Chat Provider.

Manage everything from the status bar item or the Universal Chat Provider: Manage Provider command — list/remove accounts, restart, update, or reset the managed server.

Utility model

Copilot generates commit messages, chat titles, and summaries with its own background models. Run Universal Chat Provider: Set Utility Model (or use the status bar menu) to point Copilot's chat.utilityModel and chat.utilitySmallModel at one of your subscription models instead, so those background flows run through your accounts. When the model supports thinking levels, the command also asks for the utility Thinking Effort; commit messages use chat.utilitySmallModel plus that effort. No Copilot subscription required. Clear the selection to undo.

How it works

GitHub Copilot Chat normally only talks to Copilot's own models. This extension bridges that gap: it runs a local CLIProxyAPI server, logs you into your AI subscriptions via OAuth, and registers their models as a native chat provider in VS Code. Pick them straight from the Copilot model dropdown.

   Your subscriptions          Local proxy             VS Code
  ┌────────────────────┐     ┌──────────────┐     ┌──────────────────┐
  │ Claude             │     │              │     │  Copilot Chat    │
  │ ChatGPT / Codex    │──┐  │              │  ┌─▶│   model picker   │
  │ Antigravity        │  ├─▶│  CLIProxyAPI │──┤  ├──────────────────┤
  │ Grok · Kimi · …    │──┘  │   (OAuth)    │  └─▶│  Utility model   │
  └────────────────────┘     └──────────────┘     └──────────────────┘

Configuration

The managed server checks for stable CLIProxyAPI releases when VS Code starts. The default automatic policy installs newer releases and restarts the server. Use suggestUpdates to receive a prompt before installation, or manual to disable startup checks and use the exact configured version. Update checks do not apply in external mode.

Development

pnpm install
pnpm vscode:dts
pnpm check          # lint + typecheck + tests + build
pnpm ext:package    # produce an installable .vsix

Press F5 from VS Code Insiders to launch the Extension Development Host with the proposed APIs enabled.

License

MIT · Not affiliated with GitHub, OpenAI, Anthropic, or Google.