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 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 indicatorPort : 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. 
