Copilot API Integration (Deprecated)

CCS keeps copilot-api integration available for existing local GitHub Copilot setups. This is now deprecated compatibility, not a recommended path for new provider setup.

GitHub usage-based Copilot billing begins June 1, 2026. Prefer Codex or another active provider for new work.

Overview

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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:

Model	Description
GPT-4.1 (Free)	General purpose
GPT-5 Mini (Free)	Faster responses

Pro+ Required

Uses premium request quota from your subscription:

Model	Description
Claude Opus 4.5	Complex reasoning
Claude Sonnet 4.5	Balanced performance
GPT-5.2	Latest GPT model
GPT-5.1 Codex Max	Code-optimized
Gemini 2.5 Pro	Google’s flagship

Model Mapping

Configure which models handle each tier:

Tier	Description	Default
Default Model	No tier specified	gpt-4.1
Opus	Complex reasoning	gpt-4.1
Sonnet	Balanced	gpt-4.1
Haiku	Fast responses	gpt-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.

Getting Started

Providers

Features

Tutorials

Copilot API (Deprecated)

Copilot API Integration (Deprecated)

Overview

Setup

1. Install copilot-api

2. Start Daemon

Model Tiers

Free Tier

Pro+ Required

Model Mapping

Raw Configuration

Requirements

GitHub Copilot

GitHub CLI

​Copilot API Integration (Deprecated)

​Overview

​Setup

​1. Install copilot-api

​2. Start Daemon

​Model Tiers

​Free Tier

​Pro+ Required

​Model Mapping

​Raw Configuration

​Requirements

GitHub Copilot

GitHub CLI

Copilot API Integration (Deprecated)

Overview

Setup

1. Install copilot-api

2. Start Daemon

Model Tiers

Free Tier

Pro+ Required

Model Mapping

Raw Configuration

Requirements