The AI-native email platform.

Transactional email, flows and on-brand newsletters all from Claude, ChatGPT or your AI agent.

Live in Claude? Same.
Now your email marketing does too.

We integrate completely with Claude Code, Cowork, ChatGPT, Codex, Cursor and all AI agents. We're not MCP bolted on. We're an AI that does your email marketing.


Transactional emails that took hours to build now take a prompt or two. Design that is pixel perfect, on brand, within Claude Code, Cursor and Codex. Detailed email performance analytics fed back into your own AI stack. And enterprise level deliverability and reliability.

Claude Code
Anthropic
Cowork
Anthropic
ChatGPT
OpenAI
Codex
OpenAI
Cursor
AI IDE
Gemini CLI
Google
 + any MCP-compatible agent
"I don't want another dashboard. That's why I moved from MailerLite to nitrosend."
MarkMark, Grey Wolf Agency

Delightfully prompted design.

Not just an API. nitrosend generates pixel-perfect, brand-matched emails. Describe what you want in natural language. Get production-ready design in seconds. Your brand colors, your fonts, your logo. Automatically.

Pixel-perfect on-brand email design generated by Nitrosend AI from a natural-language prompt
Nitrosend Flows dashboard automating multi-step email sequences for onboarding, password resets and transactional sends

Transactional and Marketing email. One prompt.

Transactional email AND marketing campaigns AND automation flows. Password resets and onboarding series and newsletters. One platform, one API, one prompt. Most tools make you choose.

Gets smarter every send.

Our Nitrowheel EmailLLM compounds your email performance over time. Subject lines, send times, and content adapt based on your real performance data. Not generic AI suggestions. Your data, your audience, your results. It learns what works for you.

Nitrosend Email LLM dashboard with engagement metrics, AI insights and the Nitrowheel learning loop
Nitrosend integrations directory for bringing your own sending keys with Mailgun, Amazon SES, Postmark, Resend and SendGrid

Bring your own everything.

Your SendGrid, Postmark, or SES for sending. Your Anthropic or OpenAI keys for AI. Full control. Zero lock-in. The best tools earn your loyalty, they don't trap you.

Beautiful emails. Prompted, not dragged.

Every email is responsive, accessible, dark-mode ready, and on-brand. No template editor required.

Welcome seriesSaaS onboarding
Product updateFeature announcement
NewsletterEditorial brand
Cart abandonmentE-commerce flow
"Creating drag and drop emails was so clunky. I love that I can just use Claude to create emails with nitrosend."
PalomaPaloma, Elita Genetics

Pristine deliverability. Enterprise level reliability.

When you embed an email provider in your stack, you're trusting them with your customer relationships.

99.99%Uptime

Infrastructure that processes 700B+ emails per year. Enterprise-grade, always on.

AutoAuthentication

DKIM, SPF, and DMARC configured automatically. Dedicated IPs available. Auto-warmup from day one.

SplitStreams

Transactional and marketing on separate infrastructure. Password resets never compete with newsletters.

George, Kam and Ed - the nitrosend team

It's our third rodeo.

I really don't know why we love email so much.

Between us we've built two email platforms, sent over 6 billion emails, and exited three companies. We've been on both sides of the email stack. This is a tool we initially started for ourselves. We needed this, and it turns out other people wanted it too. So we're building it.

George HartleyDesigner. Ex-CEO & Co-founder SmartrMail. Co-founder Bluethumb. Founder Email Marketing Skill for Claude.
Kam LowDeveloper. Ex-CTO SmartrMail (6B emails, acquired 2022).
Edward HartleyOperations. Ex-CEO Bluethumb. Co-founder SmartrMail. Ex CEO Sendicate Email (28K users).

Simple pricing. Unlimited contacts.

Every plan includes everything. Pay for what you send, not who you store.

Free
$0
forever
  • Emails 8,000then 500/mo
  • AI actions 20/mo
  • Contacts Unlimited
  • MCP/API Included
  • Seats 1
Start free
Pro
$20
per month
  • Emails 20,000/month
  • AI actions 1,000/mo
  • Contacts Unlimited
  • BYO sending keys Yes
  • Seats 3
Get started
Ultra
$100
per month
  • Emails 125,000/month
  • AI actions 5,000/mo
  • Seats 10 · Domains 3
  • Frontier AI Included
  • Dedicated IP Included
Get started
Enterprise
$300+
per month
  • Emails 500K - 4M+/month
  • AI actions Unlimited
  • SSO / SAML Included
  • 99.9% SLA Included
  • Custom volume Available
See pricing

Free forever. No credit card required. See full comparison →

AI-native email.

One command. Full email stack. Stop configuring, start shipping.

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

nitrosend is the fastest email platform that works where you work. Prompt it from Claude. Trigger it from your code. Let it run your email marketing while you build your product.

It's not an email tool with AI features. It's an AI that does your email marketing.

We're obsessed with speed. Not because speed is trendy, but because speed is the thing that separates the people who ship things that change lives from the people who plan to ship. Every minute you spend configuring email automations is a minute you're not talking to customers, writing code, or selling.

We believe the best tools disappear into your workflow. You shouldn't have to learn our interface.

We're George, Ed and Kam, and we're building nitrosend because the world has shifted and email hasn't caught up. Until now - welcome to faster email.