Skip to main content

​
Copilot API Integration

CCS integrates with copilot-api to enable GitHub Copilot models through Claude Code’s interface.

​
Overview

Copilot API - Dark
Unofficial API - Use at Your Own Risk
  • Reverse-engineered API - may break anytime
  • Excessive use may trigger account restrictions
  • No warranty, no responsibility from CCS

​
Setup

​
1. Install copilot-api

ccs config
# Navigate to GitHub Copilot → Install copilot-api

​
2. Start Daemon

The Copilot proxy runs as a local daemon on port 4141:
  • Status: Stopped/Running indicator
  • Port: 4141 (configurable)
  • Start/Stop: Control buttons in dashboard

​
Model Tiers

​
Free Tier

No premium usage count - unlimited access:
ModelDescription
GPT-4.1 (Free)General purpose
GPT-5 Mini (Free)Faster responses
Raptor Mini (Free)Alternative routing

​
Pro+ Required

Uses premium request quota from your subscription:
ModelDescription
Claude Opus 4.5Complex reasoning
Claude Sonnet 4.5Balanced performance
GPT-5.2Latest GPT model
GPT-5.1 Codex MaxCode-optimized
Gemini 2.5 ProGoogle’s flagship

​
Model Mapping

Configure which models handle each tier:
TierDescriptionDefault
Default ModelNo tier specifiedgpt-4.1
OpusComplex reasoninggpt-4.1
SonnetBalancedgpt-4.1
HaikuFast responsesgpt-4.1

​
Raw Configuration

{
  "env": {
    "ANTHROPIC_BASE_URL": "http://127.0.0.1:4141",
    "ANTHROPIC_AUTH_TOKEN": "",
    "ANTHROPIC_MODEL": "gpt-4.1",
    "ANTHROPIC_DEFAULT_OPUS_MODEL": "gpt-4.1",
    "ANTHROPIC_DEFAULT_SONNET_MODEL": "gpt-4.1",
    "ANTHROPIC_DEFAULT_HAIKU_MODEL": "gpt-4.1"
  }
}

​
Requirements

GitHub Copilot

Active subscription (Individual, Business, or Enterprise)

GitHub CLI

gh CLI authenticated with your GitHub account
copilot-api is an open-source project. See GitHub for implementation details.