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Quickstart

Get up and running with Nitrosend in under 5 minutes. Choose your path: The fastest way to get started. Connect your AI tool and let it handle the setup.

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1. Create your account

Sign up at app.nitrosend.com.

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2. Connect your AI tool

Add Nitrosend as an MCP server. Pick your tool: 
claude mcp add --transport http nitrosend https://api.nitrosend.com/mcp
For Claude Desktop, ChatGPT, Cursor, Gemini, or other tools — see the full integration guides.

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3. Sign in when prompted

Your AI tool will open a Nitrosend sign-in window. Log in with your account — authentication is handled automatically.

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4. Start prompting

Try this to get a full setup in one go: 
Connect into Nitrosend and based on my brand, give me a suggested email
flow to set up and guide me through set up. Make the email design modern
and on brand against my website.
Your AI will scrape your brand, suggest a flow, build it, and walk you through sending a test.
Other great first prompts:
  • “Check my account status and tell me what I need to set up”
  • “Create a 5-email welcome series for new subscribers”
  • “Send a test email to me@example.com”

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Quickstart with the dashboard

Prefer to set things up manually? Here’s the traditional path.

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1. Create your account

Sign up at app.nitrosend.com and complete the onboarding wizard. This sets up your brand colors, logo, and sending domain.

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2. Verify your domain

Add the DNS records shown in Settings > Domains to authenticate your sending domain. This ensures your emails land in the inbox, not spam.

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3. Import contacts

Go to Contacts > Import and upload a CSV, or add contacts manually. Each contact needs at least an email address.

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4. Create a template

Head to Templates and use the drag-and-drop editor to design your email. Your brand colors and logo are applied automatically.

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5. Send a campaign

Go to Campaigns > New, select your template and audience, and hit send.

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Using the REST API

If you prefer to integrate programmatically, grab your API key from Settings > API Keys and check the API Reference. 
curl -X POST https://api.nitrosend.com/v1/my/messages \
  -H "Authorization: Bearer nskey_live_..." \
  -H "Content-Type: application/json" \
  -d '{
    "to": "user@example.com",
    "subject": "Hello from Nitrosend",
    "html": "<h1>Welcome!</h1>"
  }'