Nitrosend

MCP server · by nitrosend

Communication npmStreamable HTTP v0.8.3

AI-native email marketing. Campaigns, automations, transactional, contacts, and analytics.

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Install

Pin version registry version 0.8.3

npm
npx -y @nitrosend/mcp

npm
npx -y @nitrosend/mcp@0.8.3

Streamable HTTP
https://api.nitrosend.com/mcp

Setup by client

Pick your client — the config below is generated for this server (both local and hosted-endpoint forms). Copy respects the “Pin version” switch above.

claude_desktop_config.json

{
  "mcpServers": {
    "nitrosend": {
      "command": "npx",
      "args": [
        "-y",
        "@nitrosend/mcp"
      ],
      "env": {
        "NITROSEND_API_KEY": "<YOUR_NITROSEND_API_KEY>",
        "NITROSEND_BEARER_TOKEN": "<YOUR_NITROSEND_BEARER_TOKEN>"
      }
    }
  }
}

{
  "mcpServers": {
    "nitrosend": {
      "command": "npx",
      "args": [
        "-y",
        "@nitrosend/mcp@0.8.3"
      ],
      "env": {
        "NITROSEND_API_KEY": "<YOUR_NITROSEND_API_KEY>",
        "NITROSEND_BEARER_TOKEN": "<YOUR_NITROSEND_BEARER_TOKEN>"
      }
    }
  }
}

Remote (hosted) endpoint

https://api.nitrosend.com/mcp

Claude Desktop: Settings → Connectors → Add custom connector, paste this URL.

Format verified against the official Claude Desktop docs ↗.

terminal

claude mcp add --env NITROSEND_API_KEY=<YOUR_NITROSEND_API_KEY> --env NITROSEND_BEARER_TOKEN=<YOUR_NITROSEND_BEARER_TOKEN> nitrosend -- npx -y @nitrosend/mcp

claude mcp add --env NITROSEND_API_KEY=<YOUR_NITROSEND_API_KEY> --env NITROSEND_BEARER_TOKEN=<YOUR_NITROSEND_BEARER_TOKEN> nitrosend -- npx -y @nitrosend/mcp@0.8.3

terminal

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

Format verified against the official Claude Code docs ↗.

.cursor/mcp.json

{
  "mcpServers": {
    "nitrosend": {
      "command": "npx",
      "args": [
        "-y",
        "@nitrosend/mcp"
      ],
      "env": {
        "NITROSEND_API_KEY": "<YOUR_NITROSEND_API_KEY>",
        "NITROSEND_BEARER_TOKEN": "<YOUR_NITROSEND_BEARER_TOKEN>"
      }
    }
  }
}

{
  "mcpServers": {
    "nitrosend": {
      "command": "npx",
      "args": [
        "-y",
        "@nitrosend/mcp@0.8.3"
      ],
      "env": {
        "NITROSEND_API_KEY": "<YOUR_NITROSEND_API_KEY>",
        "NITROSEND_BEARER_TOKEN": "<YOUR_NITROSEND_BEARER_TOKEN>"
      }
    }
  }
}

.cursor/mcp.json (hosted endpoint)

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

Format verified against the official Cursor docs ↗.

.vscode/mcp.json

{
  "servers": {
    "nitrosend": {
      "command": "npx",
      "args": [
        "-y",
        "@nitrosend/mcp"
      ],
      "env": {
        "NITROSEND_API_KEY": "<YOUR_NITROSEND_API_KEY>",
        "NITROSEND_BEARER_TOKEN": "<YOUR_NITROSEND_BEARER_TOKEN>"
      }
    }
  }
}

{
  "servers": {
    "nitrosend": {
      "command": "npx",
      "args": [
        "-y",
        "@nitrosend/mcp@0.8.3"
      ],
      "env": {
        "NITROSEND_API_KEY": "<YOUR_NITROSEND_API_KEY>",
        "NITROSEND_BEARER_TOKEN": "<YOUR_NITROSEND_BEARER_TOKEN>"
      }
    }
  }
}

.vscode/mcp.json (hosted endpoint)

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

Format verified against the official VS Code docs ↗.

mcp_config.json

{
  "mcpServers": {
    "nitrosend": {
      "command": "npx",
      "args": [
        "-y",
        "@nitrosend/mcp"
      ],
      "env": {
        "NITROSEND_API_KEY": "<YOUR_NITROSEND_API_KEY>",
        "NITROSEND_BEARER_TOKEN": "<YOUR_NITROSEND_BEARER_TOKEN>"
      }
    }
  }
}

{
  "mcpServers": {
    "nitrosend": {
      "command": "npx",
      "args": [
        "-y",
        "@nitrosend/mcp@0.8.3"
      ],
      "env": {
        "NITROSEND_API_KEY": "<YOUR_NITROSEND_API_KEY>",
        "NITROSEND_BEARER_TOKEN": "<YOUR_NITROSEND_BEARER_TOKEN>"
      }
    }
  }
}

mcp_config.json (hosted endpoint)

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

Format verified against the official Windsurf docs ↗.

Environment variables

Defined in the server's official registry manifest. Required secrets are shown as <YOUR_…> placeholders in the configs above.

NITROSEND_API_KEY required secret — Nitrosend API key for stdio bridge usage (starts with nskey_live_)
NITROSEND_BEARER_TOKEN secret — Optional OAuth bearer token for the stdio bridge
NITROSEND_API_URL — Optional MCP endpoint override (defaults to https://api.nitrosend.com/mcp)
NITROSEND_BRAND_SID — Optional fixed-brand override. When set, the bridge sends X-Brand-SID with each MCP request.

About this server

Distributed as npm, Streamable HTTP, listed under Communication. Review our MCP security guide before granting access to real data.

Frequently asked questions

How do I install Nitrosend?

Run the install command shown above, then paste the config for your client (Claude Desktop, Claude Code, Cursor, VS Code or Windsurf) into its MCP settings and restart the client.

Is Nitrosend free to use?

The MCP server itself is free to install. The source is public on https://github.com/nitrosend/nitrosend. Any third-party service it calls may require its own API key and account.

Which clients support Nitrosend?

Any MCP-compatible client can use it, including Claude Desktop, Claude Code, Cursor, VS Code, Windsurf and custom agents.

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