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A lightweight local OpenAI-compatible model API key router

Project description

Auto Model Key Router

一个本地 OpenAI-compatible API 路由器:把多个模型和多个上游 API Key 统一收口到本地服务,自动分流、失败切换、统计调用,并可一键接入 Claude Code / Codex。

主要能力

  • 多 Key 路由:同一模型可配置多个 Key,支持 round_robinpriorityonly_first
  • 失败切换与冷却:遇到 401/403/429/5xx 等可重试错误时自动重试或切换 Key,并持久化冷却状态。
  • 统一模型名:客户端固定请求 unified-model,真实模型和固定 Key 可在路由器侧随时切换。
  • OpenAI-compatible 代理:支持 /v1/chat/completions/v1/models,并兼容 Claude Code 的 /v1/messages 与 Codex 的 /v1/responses;可为不同协议模式配置上游额外路径。
  • Terminal UI 管理:在 TUI 中配置模型、Key、统一模型、服务注册和客户端接入。
  • 访客 Key:安装 visitor extra 后,可用固定访客 Key 暴露受限公共模型。
  • 统计与日志:记录本地/访客调用、模型、Key、状态码、token、重试、延迟等指标。

安装

需要 Python >=3.12

pipx install auto-model-key-router
# 或
uv tool install auto-model-key-router

启用访客 Key 功能:

pipx install "auto-model-key-router[visitor]"
# 或
uv tool install "auto-model-key-router[visitor]"

安装后可使用两个等价命令:

amkr --version
auto-model-key-router --version

快速开始

1. 启动 Terminal UI

amkr

首次启动会在系统缓存目录自动创建配置文件和本地鉴权 Key。你也可以复制示例配置到当前目录:

cp router-config.example.json router-config.json
amkr --config router-config.json

Windows PowerShell 可使用:

copy router-config.example.json router-config.json
amkr --config router-config.json

2. 配置模型与 Key

在 TUI 中进入:

  1. 模型 Key:添加真实模型和上游 API Key。
  2. 统一模型:把 unified-model 指向一个真实模型,必要时固定到某个 Key。
  3. 一键配置 → 路由服务:启动或注册本地代理服务。
  4. 一键配置 → Claude Code / Codex:按需自动写入客户端配置。

3. 调用本地代理

默认服务地址是:

http://127.0.0.1:8000

请求示例:

curl http://127.0.0.1:8000/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer amkr_your-local-api-key" \
  -d '{
    "model": "unified-model",
    "messages": [{"role": "user", "content": "hello"}]
  }'

也可以把 model 写成真实模型 ID、模型 alias,或 模型ID[key name] 来显式指定某个 Key。

常用命令

# 打开 TUI
amkr

# 使用指定配置文件打开 TUI
amkr --config router-config.json

# 后台启动 / 查看状态 / 停止
auto-model-key-router --config router-config.json --serve
auto-model-key-router --config router-config.json --status
auto-model-key-router --config router-config.json --stop

# 注册、管理系统服务
auto-model-key-router --config router-config.json --install-service
auto-model-key-router --config router-config.json --service status
auto-model-key-router --config router-config.json --service restart

# 查看配置摘要、日志与统计
auto-model-key-router --config router-config.json --show-config
auto-model-key-router --config router-config.json --show-logs 50

# 管理 unified-model
auto-model-key-router --config router-config.json --show-unified-model
auto-model-key-router --config router-config.json --switch-model gpt-4o-mini
auto-model-key-router --config router-config.json --switch-key auto

配置示例

{
  "host": "127.0.0.1",
  "port": 8000,
  "default_base_url": "https://api.openai.com",
  "upstream_routes": {
    "https://example.com/tokenplan": {
      "anthropic": "anthropic/"
    }
  },
  "request_timeout": 60,
  "max_retries": 2,
  "key_failure_threshold": 2,
  "key_cooldown_seconds": 60,
  "local_api_key": "amkr_your-local-api-key",
  "unified_model": {
    "model": "gpt-4o-mini",
    "key": null
  },
  "models": [
    {
      "id": "gpt-4o-mini",
      "aliases": ["fast-mini"],
      "routing_mode": "round_robin",
      "keys": [
        {"name": "openai-main", "api_key": "sk-your-first-upstream-key"},
        {"name": "openai-backup", "api_key": "sk-your-second-upstream-key"},
        {
          "name": "mimo-tokenplan",
          "api_key": "sk-your-third-upstream-key",
          "base_url": "https://example.com/tokenplan"
        }
      ]
    }
  ]
}

local_api_key 是客户端访问本地 AMKR 的 Key;keys[].api_key 是 AMKR 转发到上游模型服务时使用的真实供应商 Key。

文档

访客 Key 简介

安装 auto-model-key-router[visitor] 后,可以用固定 Key amkr-visitor 暴露受限公共模型。只有设置了 allow_visitor: true 的上游 Key 才能被访客使用,访客看到的模型名格式为 amkr-{真实模型ID}

详细限制和示例见 完整使用教程:使用访客 Key

开发

git clone https://github.com/sparr68/auto-model-key-router.git
cd auto-model-key-router
pip install -e ".[test]"
pytest

安全提示

  • 不要把真实上游 API Key 提交到 Git。
  • local_api_key 为空会关闭本地鉴权;仅建议在可信本机环境使用。
  • 如果监听 0.0.0.0 或暴露到局域网/公网,请务必启用本地鉴权并配置防火墙。

License

MIT

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