Nitrosend可选的stdio桥接器。大多数客户端应直接连接到Nitrosend的远程MCP服务器https://api.nitrosend.com/mcp;该软件包适用于仅限Stdio客户端和本地开发。

所有套餐，包括免费套餐，均可完全访问Nitrosend MCP/API/CLI Surface。发送量、座位数、AI行动津贴和付费附加内容仍受套餐限制。免费套餐前期包含8000封免费邮件，每月500封免费邮件。

对于 Claude Desktop、Claude.ai 和 Claude Cowork，请使用远程 MCP 连接器 UI。不要安装 @nitrosend/cli 或这个标准桥接器 Claude连接器设置。

管理联系人、撰写邮件、构建自动化流程，并通过自然语言启动活动。

对于模板或战役中使用的图像媒体，MCP应当进行编排 而非携带大字节。小型聊天附加图像可以使用nitro_ingest 具有 kind=image 和 image_data;公共图像在 image_url 时可以使用 image_url 希望实现氮气托管的永久性;更大的本地文件应调用 nitro_ingest(upload: {kind: "image", filename, content_type, byte_size, checksum})， 把字节输入到’direct_upload。

@nitrosend/mcp

Optional stdio bridge for Nitrosend. Most clients should connect directly to Nitrosend’s remote MCP server at https://api.nitrosend.com/mcp; this package exists for stdio-only clients and local development.

All plans, including free plans, have full access to the generally available Nitrosend MCP/API/CLI surface. Plan limits still apply to send volume, seats, AI action allowances, and paid add-ons. The Free plan includes 8,000 free emails up front, then 500 free emails every month.

For Claude Desktop, Claude.ai, and Claude Cowork, use the remote MCP connector UI. Do not install @nitrosend/cli or this stdio bridge for the standard Claude connector setup.

Manage contacts, compose emails, build automated flows, and launch campaigns through natural language.

For image media used in templates or campaigns, MCP should orchestrate rather than carry large bytes. Small chat-attached images can use nitro_ingest with kind=image and image_data; public images can use image_url when Nitro-hosted permanence is desired; larger local files should call nitro_ingest(upload: {kind: "image", filename, content_type, byte_size, checksum}), PUT bytes to direct_upload.url, then pass the returned signed_id to nitro_ingest.

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Setup by client

Most clients support OAuth — sign in via your browser, no API keys needed.

Claude Code

claude mcp add --transport http nitrosend https://api.nitrosend.com/mcp

Or add to .mcp.json:

{
  "mcpServers": {
    "nitrosend": {
      "type": "http",
      "url": "https://api.nitrosend.com/mcp"
    }
  }
}

OAuth sign-in happens automatically on first use.

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Claude Desktop, Claude.ai and Cowork

Nitrosend is an official connector in the Claude directory. Go to Settings → Connectors, search for Nitrosend and click Connect, or open . Sign in when prompted; no URL to paste and no API key.

If your Claude organisation restricts directory connectors, ask an organisation owner to enable Nitrosend or to add it as a custom connector with:

https://api.nitrosend.com/mcp

Prefer a one-click desktop extension? mcpb/ packages the same remote server as a Claude Desktop extension (.mcpb) with browser OAuth. See mcpb/README.md to install or build it.

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Cursor

Nitrosend is an official plugin on the Cursor Marketplace. In Cursor’s Agent chat, run:

/add-plugin nitrosend

Or click Add to Cursor on the Marketplace listing. The first Nitrosend tool call opens the OAuth sign-in; no API key, no config file.

Prefer to manage the server yourself? Add to ~/.cursor/mcp.json (all projects) or .cursor/mcp.json (this repo):

{
  "mcpServers": {
    "nitrosend": {
      "url": "https://api.nitrosend.com/mcp"
    }
  }
}