Ccg

三个 stdio MCP server，让 Claude Code Desktop 通过 API 直接调用 OpenAI Codex/GPT-5、Gemini、Claude，不依赖本地 CLI，支持第三方 API 代理网关。

快速启动（uvx）

# 从 GitHub 直接拉起（无需 clone）
uvx --from git+https://github.com/Erenshkigal111/ccg-mcp codex-api-mcp
uvx --from git+https://github.com/Erenshkigal111/ccg-mcp gemini-api-mcp
uvx --from git+https://github.com/Erenshkigal111/ccg-mcp claude-api-mcp

settings.json — 直连官方 API

Windows

{
  "mcpServers": {
    "codex-api": {
      "command": "uvx",
      "args": ["--from", "git+https://github.com/Erenshkigal111/ccg-mcp", "codex-api-mcp"],
      "env": {
        "OPENAI_API_KEY": "${env:OPENAI_API_KEY}"
      }
    },
    "gemini-api": {
      "command": "uvx",
      "args": ["--from", "git+https://github.com/Erenshkigal111/ccg-mcp", "gemini-api-mcp"],
      "env": {
        "GOOGLE_API_KEY": "${env:GOOGLE_API_KEY}"
      }
    },
    "claude-api": {
      "command": "uvx",
      "args": ["--from", "git+https://github.com/Erenshkigal111/ccg-mcp", "claude-api-mcp"],
      "env": {
        "ANTHROPIC_API_KEY": "${env:ANTHROPIC_API_KEY}"
      }
    }
  }
}

macOS / Linux

{
  "mcpServers": {
    "codex-api": {
      "command": "uvx",
      "args": ["--from", "git+https://github.com/Erenshkigal111/ccg-mcp", "codex-api-mcp"],
      "env": {
        "OPENAI_API_KEY": "$OPENAI_API_KEY"
      }
    },
    "gemini-api": {
      "command": "uvx",
      "args": ["--from", "git+https://github.com/Erenshkigal111/ccg-mcp", "gemini-api-mcp"],
      "env": {
        "GOOGLE_API_KEY": "$GOOGLE_API_KEY"
      }
    },
    "claude-api": {
      "command": "uvx",
      "args": ["--from", "git+https://github.com/Erenshkigal111/ccg-mcp", "claude-api-mcp"],
      "env": {
        "ANTHROPIC_API_KEY": "$ANTHROPIC_API_KEY"
      }
    }
  }
}

settings.json — 第三方 API 代理网关

当所有 API（OpenAI、Claude、Gemini）经由同一第三方代理（如 https://hk1.augmunt.com）转发时，使用以下模板。API Key 只写系统环境变量，不硬编码进 settings.json。

Windows（第三方网关）

{
  "mcpServers": {
    "codex-api": {
      "command": "uvx",
      "args": ["--from", "git+https://github.com/Erenshkigal111/ccg-mcp", "codex-api-mcp"],
      "env": {
        "OPENAI_API_KEY": "${env:OPENAI_API_KEY}",
        "OPENAI_BASE_URL": "https://hk1.augmunt.com/v1"
      }
    },
    "gemini-api": {
      "command": "uvx",
      "args": ["--from", "git+https://github.com/Erenshkigal111/ccg-mcp", "gemini-api-mcp"],
      "env": {
        "GOOGLE_API_KEY": "${env:GOOGLE_API_KEY}",
        "GEMINI_API_ENDPOINT": "hk1.augmunt.com"
      }
    },
    "claude-api": {
      "command": "uvx",
      "args": ["--from", "git+https://github.com/Erenshkigal111/ccg-mcp", "claude-api-mcp"],
      "env": {
        "ANTHROPIC_API_KEY": "${env:ANTHROPIC_API_KEY}",
        "ANTHROPIC_BASE_URL": "https://hk1.augmunt.com"
      }
    }
  }
}

注意：OPENAI_BASE_URL 需要 /v1 后缀；GEMINI_API_ENDPOINT 只填主机名（无协议前缀）；ANTHROPIC_BASE_URL 填完整 URL（无路径后缀）。

若 Gemini 代理为 OpenAI-compatible 模式，将 gemini-api 改为使用 codex-api-mcp，并将 OPENAI_BASE_URL 指向代理，model 填 gemini-3.1-pro-preview。

代理相关环境变量一览

Tool schema

codex-api.exec

exec(
  prompt: str,
  role: str = "",
  model: str = "gpt-5-codex",
  reasoning_effort: str = "medium",
  workdir: str = ""
) -> str

gemini-api.exec

exec(
  prompt: str,
  role: str = "",
  model: str = "gemini-3.1-pro-preview",
  workdir: str = ""
) -> str

claude-api.exec

exec(
  prompt: str,
  role: str = "",
  model: str = "claude-sonnet-4-6",
  workdir: str = ""
) -> str

烟测

git clone https://github.com/Erenshkigal111/ccg-mcp
cd ccg-mcp
pip install -e .
python tests/smoke_test.py

已知限制

• 速率限制：API 返回 429 时，server 以 JSON 字符串返回错误，调用方决定重试。
• 模型可用性：默认模型取决于账号权限和代理供应商发布状态；入参 model 可随时覆盖。
• Gemini 原生 SDK：GEMINI_API_ENDPOINT 只支持 google-genai 原生协议；若代理为 OpenAI-compatible，改用 codex-api-mcp + OPENAI_BASE_URL。
• 文件访问：三个 server 均不直接读取本地工作区文件，仅调用远程 API。