Koskamo

Nitrosend MCP

Nitrosend is an AI-native email platform offering campaigns, automated flows, and transactional email. This official MCP server exposes 25 typed tools allowing AI agents to manage campaigns, contacts, segments, templates, and analytics, as well as control delivery and approvals. It supports OAuth sign-in across various AI clients like Claude Code, Cursor, and ChatGPT, enabling agents to handle email marketing and transactional sending directly.

Endpoint and access

OAuth sign-in: the first time you connect, your client opens the vendor's own authorization prompt in a browser.

Nitrosend MCP logo, by NitrosendOAuth sign-inEndpoint checked 2026-10-26Operated by Nitrosend
MCP endpoint (Streamable HTTP)
https://api.nitrosend.com/mcp
Vendor documentation

What you can do with it

  • Manage email campaigns and automation flows
  • Handle contacts and segments
  • Control delivery and approvals
  • Access analytics and deliverability data

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers a Streamable HTTP server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http nitrosend-mcp https://api.nitrosend.com/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add nitrosend-mcp --url https://api.nitrosend.com/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable nitrosend-mcp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "nitrosend-mcp": {
      "url": "https://api.nitrosend.com/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure). The type must be streamableHttp for a remote HTTP server.
Cline configuration
{
  "mcpServers": {
    "nitrosend-mcp": {
      "type": "streamableHttp",
      "url": "https://api.nitrosend.com/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start nitrosend-mcp and inspect its tools.
VS Code configuration
{
  "servers": {
    "nitrosend-mcp": {
      "type": "http",
      "url": "https://api.nitrosend.com/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http nitrosend-mcp https://api.nitrosend.com/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.
Claude Desktop configuration
{
  "mcpServers": {
    "nitrosend-mcp": {
      "url": "https://api.nitrosend.com/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "nitrosend-mcp": {
      "serverUrl": "https://api.nitrosend.com/mcp"
    }
  }
}

Ground your agent in cited data

Nitrosend MCP gives your agent tools. Koskamo gives it reviewed, cited facts to check its answers against. Add it as a second MCP server; public reads need no API key.

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