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Windsurf + Nitrosend MCP

Windsurf is the AI-powered editor by Codeium. Windsurf supports MCP servers natively with OAuth across all transport types. Connect Nitrosend and Cascade becomes your email marketing assistant.

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Setup

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Step 1: Add the MCP server

Add to ~/.codeium/windsurf/mcp_config.json: 
{
  "mcpServers": {
    "nitrosend": {
      "serverUrl": "https://api.nitrosend.com/mcp"
    }
  }
}

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Step 2: Sign in

Restart Windsurf. On first tool call, Windsurf opens your browser for Nitrosend sign-in. Log in or create a free account — no API key needed.

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Step 3: Verify

In Cascade, ask: 
What's my Nitrosend account status?
Cascade calls nitro_get_status and shows your account health.

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Example workflows

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Brand + email in one prompt

Scrape my brand from https://mysite.com and compose a launch announcement email.

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Build a flow

Create a welcome flow: when a contact is added, send a welcome email, wait 3 days, then send a follow-up.

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Check performance

Show me open rates and click rates for my last campaign.

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Troubleshooting

Make sure the config file is valid JSON and located at ~/.codeium/windsurf/mcp_config.json. Restart Windsurf after editing.
Check that your browser can reach api.nitrosend.com. If sign-in keeps failing, try clearing Windsurf’s MCP auth cache.
Brand scraping takes 20-30 seconds (one-time). Other calls should complete in 1-3 seconds. Check your network if timeouts persist.
Windsurf supports OAuth natively for all MCP transport types — no API keys or bridge tools needed.