opencode-eyes-nvidia

opencode-eyes-nvidia

MCP server that gives non-multimodal models 'eyes' by describing images via NVIDIA NIM's MiniMax-M3 model, with tools to describe images and list available vision models. It supports multiple NVIDIA API keys with automatic failover and rotation.

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README

opencode-eyes-nvidia 👁️

MCP server that provides image description capability using NVIDIA NIM hosted API (https://integrate.api.nvidia.com/v1) with the MiniMax-M3 multimodal model.

为不具备多模态能力的模型提供**"眼睛"**。将图片输入,即可获得详细的图片文字描述。

功能

工具 说明
describe_image 描述一张图片的内容,默认使用 MiniMax-M3 多模态大模型
list_vision_models 列出 NVIDIA NIM API 上可用的多模态(视觉)模型

多模态模型

默认模型为 minimaxai/minimax-m3(文本/图像/视频输入 → 文本输出,1M 上下文,支持推理)。 可通过 NVIDIA_MODEL 或 describe_image 的 model 参数切换:

模型 ID 说明
minimaxai/minimax-m3 MiniMax-M3 多模态 MoE VLM(默认,支持图像/视频)
meta/llama-3.2-11b-vision-instruct Meta Llama 3.2 11B Vision
meta/llama-3.2-90b-vision-instruct Meta Llama 3.2 90B Vision
nvidia/llama-3.1-nemotron-nano-vl-8b-v1 NVIDIA Nemotron Nano VL 8B
google/gemma-3-27b-it Google Gemma 3 27B IT
nvidia/nemotron-nano-12b-v2-vl NVIDIA Nemotron Nano 12B v2 VL
qwen/qwen3.5-397b-a17b Qwen 3.5 397B A17B VLM

环境变量

变量 必填 默认值 说明
NVIDIA_API_KEY 否* — 单个 NVIDIA API Key(在 https://build.nvidia.com 获取,nvapi-...)
NVIDIA_API_KEYS 否* — 多个 Key,用逗号 / 分号 / 空格 / 换行分隔
NVIDIA_API_KEY_1 … NVIDIA_API_KEY_N 否* — 编号 Key,NVIDIA_API_KEY_1 起依次读取
NVIDIA_BASE_URL 否 https://integrate.api.nvidia.com/v1 API 基础地址
NVIDIA_MODEL 否 minimaxai/minimax-m3 默认使用的多模态模型
NVIDIA_TIMEOUT 否 120 API 请求超时(秒)
NVIDIA_MAX_DIMENSION 否 2048 发送前图片最长边缩放到该像素,0 表示不缩放
NVIDIA_JPEG_QUALITY 否 85 发送前 JPEG 压缩质量(0-100)
NVIDIA_THINKING_MODE 否 (空) MiniMax-M3 推理模式:enabled / disabled / adaptive
NVIDIA_ROTATION_MAX_RETRIES 否 Key 数量 轮询总尝试次数(跨所有 Key)
NVIDIA_ROTATION_BACKOFF 否 2 每次失败后等待的秒数(等待配额刷新)

* 至少需要配置一个 Key:NVIDIA_API_KEY、NVIDIA_API_KEYS 或 NVIDIA_API_KEY_1..N 任一即可,可同时配置(去重合并)。

Key 轮询(多 Key 自动切换)

支持配置多个 API Key:请求按顺序使用,遇错自动切换到下一个 Key,不会删除原 Key, 只是把它排到队列末尾,等待其配额刷新后再用。全程自动重试,无需人工干预。

工作方式:

  1. 启动时把所有 Key 合并进一个队列(去重,按 NVIDIA_API_KEY → NVIDIA_API_KEYS → NVIDIA_API_KEY_1..N 顺序)。
  2. 请求默认使用队首 Key。
  3. 遇到可重试错误(HTTP 401 / 403 / 404 / 408 / 429 / 5xx,或连接超时)时: 队首 Key 移到队尾,等待 NVIDIA_ROTATION_BACKOFF 秒后改用下一个 Key 重试。
  4. 所有 Key 都被轮过之后(共 NVIDIA_ROTATION_MAX_RETRIES 次尝试)仍未成功,才抛出最后一个错误。
  5. 队列状态在多次调用间保留——被限流的 Key 会排在后面,等下次轮到时配额往往已刷新。

示例:

# 方式一:逗号分隔多个 Key
set NVIDIA_API_KEYS=nvapi-key-1,nvapi-key-2,nvapi-key-3

# 方式二:编号 Key
set NVIDIA_API_KEY_1=nvapi-key-1
set NVIDIA_API_KEY_2=nvapi-key-2

# 方式三:单个 Key(向后兼容)
set NVIDIA_API_KEY=nvapi-key-1

在 OpenCode 配置中把环境变量传给 MCP 服务:

{
  "mcp": {
    "opencode-eyes-nvidia": {
      "type": "local",
      "command": ["python", "-m", "opencode_eyes_nvidia"],
      "enabled": true,
      "timeout": 120000,
      "environment": {
        "NVIDIA_API_KEYS": "{env:NVIDIA_API_KEYS}"
      }
    }
  }
}

安装

pip install -r requirements.txt

或安装为包:

pip install .

运行

# 设置环境变量(Windows,至少一种)
set NVIDIA_API_KEY=nvapi-你的key
# 或 set NVIDIA_API_KEYS=nvapi-key-1,nvapi-key-2

# 启动服务
python -m opencode_eyes_nvidia

在 OpenCode 中配置

{
  "mcp": {
    "opencode-eyes-nvidia": {
      "type": "local",
      "command": ["python", "-m", "opencode_eyes_nvidia"],
      "enabled": true,
      "timeout": 120000,
      "environment": {
        "NVIDIA_API_KEYS": "{env:NVIDIA_API_KEYS}",
        "NVIDIA_API_KEY": "{env:NVIDIA_API_KEY}"
      }
    }
  }
}

手动测试

不启动 opencode,直接通过 stdio 验证:

$env:NVIDIA_API_KEY = "nvapi-xxx"
python -m opencode_eyes_nvidia

然后在另一终端发送 MCP JSON-RPC 消息,例如:

{"jsonrpc":"2.0","id":1,"method":"initialize","params":{"protocolVersion":"2024-11-05","capabilities":{},"clientInfo":{"name":"test","version":"0.0.0"}}}
{"jsonrpc":"2.0","id":2,"method":"tools/list"}
{"jsonrpc":"2.0","id":3,"method":"tools/call","params":{"name":"describe_image","arguments":{"image_path":"C:/path/to/photo.jpg"}}}

与 opencode-eyes 的区别

  • API 从 StepFun 换成 NVIDIA NIM(https://integrate.api.nvidia.com/v1)
  • 默认模型从 step-3.7-flash 换成 MiniMax-M3(minimaxai/minimax-m3)
  • 新增 list_vision_models 工具与多模型切换能力
  • 支持 MiniMax-M3 的 thinking_mode 推理控制
  • 支持多 API Key 轮询:遇错自动切换下一个 Key,原 Key 排到队尾等待配额刷新

License

MIT

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