/v1/chat/completionsOpenAI Chat Completions
A familiar entry point for OpenAI-compatible SDKs, Chatbox clients, and automation.
PRODUCT CAPABILITIES
Lightweight without giving up compatibility or observability.
ghc-api focuses on the real protocol gaps between code agents and the GitHub Copilot API while keeping transformations, streaming events, and usage inspectable.
01
JUST ENOUGH COMPATIBILITY
One lightweight endpoint for different clients.
Transparency does not mean doing nothing. ghc-api translates where required, avoids unnecessary rewrites when pass-through works, and retains evidence for diagnosis.
/v1/messagesAnthropic Messages
Familiar message and streaming semantics for Claude Code and Anthropic SDKs.
/v1/responsesOpenAI Responses
A compatible endpoint for Codex and clients built around the Responses API.
messages → responsesCross-protocol compatibility
Adapt to Responses-only model backends with better tools, thinking, and context continuity.
02
DEBUG WITHOUT GUESSING
A proxy proves its transparency when something breaks.
Move from aggregate numbers into complete requests. Locate whether a problem comes from client formatting, compatibility translation, upstream behavior, or streaming.
Request overview
Time, model, endpoint, client IP, status, duration, and transfer size.
Payload comparison
Understand the original request and what was actually forwarded upstream.
Headers and response
Inspect request headers, response bodies, errors, and translated terminal state.
Raw SSE stream
Retain upstream event order to diagnose interrupted streams and tool calls.
Search and portability
Full-text request search plus JSON Lines export and import.
Historical statistics
Daily files, lightweight indexes, distributions, and exact request drill-down.
!
Debug data can be highly sensitive. Headers and bodies may contain tokens, source code, and conversation content. Keep the dashboard local or protect all administration pages with a reverse proxy.
03
USAGE THAT ADDS UP
Turn token usage into actionable data.
Normalize usage from different protocols and understand it by model, endpoint, user, and machine.
Token usageLast 7 days
InputInput tokensOutputOutput tokensCache creationCache writeCache readCache hit
BY MODELBY ENDPOINTBY USERBY MACHINE
04
AGENT WORKSPACE
A useful local workspace beyond the proxy.
Interact with models and code agents in the browser, manage sessions, tools, and configuration without deploying another administration stack.
Web Chat UI
Choose a model, stream conversations in the browser, and use Raw Mode to inspect responses.
Code Agent Web UI
Control Claude Code, Codex, and Copilot CLI through the Agent Client Protocol.
Session management
Create, resume, terminate, and browse sessions with work directories and message history.
Agent tool management
Detect and help install the supporting Claude, Codex, and Copilot CLI tools.
Config comparison
View hashes and differences with timestamped backups before overwriting.
Optional OneDrive sync
Sync sessions, token usage, and configuration across devices. Access starts disabled.
FREE PROXY SOFTWARE
View source ↗The tool is free. Upstream models are not included.
ghc-api is free and open source under the MIT License. It does not host, resell, or grant LLM access. Bring your own GitHub account with eligible GitHub Copilot access.