AS Provider for Copilot
Use Anthropic, Google Gemini, OpenAI, and any compatible API in VS Code's GitHub Copilot Chat
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Features
- Multi-Provider Support: Anthropic Messages, Google Gemini, OpenAI Responses, and OpenAI-compatible Chat Completions (compatible with DeepSeek, SiliconFlow, etc.)
- Automatic Model Discovery: Automatically enumerates available models via the provider's model list API — no need to manually enter every model ID
- Reasoning Effort Control: Supports five levels —
low / medium / high / xhigh / max — for Anthropic and OpenAI reasoning models
- Image Input: Enables image context for models with vision capabilities
- Tool Calling: Enables agent tool-calling for models that support it
- Visual Configuration UI: Manage Provider Profiles, models, and global settings through a built-in interface or commands — no manual file editing required
Requirements
- VS Code
>= 1.126.0
- GitHub Copilot extension (with
chatProvider and languageModelSystem proposed APIs enabled)
Quick Start
- Install AS Provider for Copilot from the VS Code Marketplace.
- Press
Ctrl+Shift+P and run AS Provider for Copilot: Open Configuration.
- Add a Provider Profile, select the provider type, and enter the Base URL.
- Enter the API Key for that profile.
- Models will automatically appear in Copilot's model picker.
Visual Configuration UI
The extension provides a visual configuration interface to manage Provider Profiles, models, and global settings without editing any files manually.
Open the Configuration UI
Press Ctrl+Shift+P, search for and run AS Provider for Copilot: Open Configuration.
Click to expand: Workflow example
Add a Provider Profile
- Click "Add Profile" on the configuration page
- Select the provider type (e.g.
openai-compatible)
- Enter the Base URL (e.g.
https://api.deepseek.com/v1)
- Enter the API Key
- After saving, the extension will automatically discover all models for that provider
Add a Model Manually
- If the provider doesn't support a model list API, you can add model configurations manually
- Enter the model ID, associate it with a profile, and configure context length, tool calling, image input, etc. as needed
Use in Copilot
- Open GitHub Copilot Chat (
Ctrl+Shift+I)
- Click the model picker and select "Manage Models..."
- Choose the AS Provider for Copilot vendor
- Select a discovered or manually configured model and start chatting
Multi-Provider Management
Each Provider Profile corresponds to a separate upstream API service. You can configure multiple profiles simultaneously and manage API Keys independently for each.
| Provider Type |
Default Base URL |
Description |
anthropic |
https://api.anthropic.com |
Anthropic Claude series |
google |
https://generativelanguage.googleapis.com |
Google Gemini series |
openai-responses |
https://api.openai.com/v1 |
OpenAI Responses API |
openai-compatible |
User-defined |
Any OpenAI-compatible endpoint |
Reasoning Effort Control
For models that support reasoning (e.g. Claude, GPT), you can configure the reasoning effort level globally or override it per model using Model Overrides:
| Level |
Description |
low |
Minimum reasoning, fastest |
medium |
Balanced (default) |
high |
Higher reasoning depth |
xhigh |
Deep reasoning |
max |
Maximum reasoning effort |
You can also use Model Overrides to set contextLength, toolCalling, and imageInput per model without affecting global settings.
Commands
| Command |
Description |
AS Provider for Copilot: Open Configuration |
Open the graphical configuration page |
AS Provider for Copilot: Set API Key |
Set an API Key for a model or profile |
AS Provider for Copilot: Delete Configured Entry |
Delete a configured model or profile |
AS Provider for Copilot: Refresh Discovered Models |
Force-refresh the auto-discovered model list |
Development
Click to expand
Requirements
- Node.js latest LTS
- Yarn 4.x
Common Scripts
# Install dependencies
yarn install
# Full build (clean + WebView + extension)
yarn build
# Run tests
yarn test
# Lint
yarn lint
# Package .vsix
yarn build:vsce
Project Structure
src/
core.ts # Type definitions, provider options, message conversion
discovery.ts # Automatic model discovery
extension.ts # VS Code extension entry point
storage.ts # Configuration persistence
views/
configView.ts # WebView controller
webview/ # Configuration UI frontend (Vue 3)
static/ # Built WebView static assets
Acknowledgements
Support & License
