Everything you need to ship email. All in one stack.

Full-stack email platform. Campaigns, automations, contacts, templates, analytics, brands, and a developer API. Core email workflows included on every plan.

Campaigns

Email campaigns

Create, target, and launch email campaigns to any list or segment. Drag-and-drop editor or AI-generated content.

SMS campaigns

Send SMS broadcasts via Twilio. Same interface, same targeting, different channel.

Scheduling

Schedule campaigns for the future or send immediately. Timezone-aware delivery.

Testing and approvals

Preview, review, and send test messages before launch. A/B testing for subject lines and content.

Automations

Visual flow builder

Drag-and-drop automation builder with triggers, delays, splits, and multi-channel steps.

Event triggers

Trigger flows on contact creation, list membership, custom events, or product activity.

Conditional splits

Branch flows based on contact attributes, engagement, tags, or custom data.

Wait steps

Add timed delays between steps. Hours, days, or weeks.

Brands

Brands

Run multiple brands from one login. Each brand has its own Brand Kit, contacts, domains, campaigns, flows, templates, and sender defaults.

Plan-gated brand count

Free and Pro include one brand, Ultra includes five brands, and Enterprise includes unlimited brands for agencies and teams managing many brands.

Pooled account usage

Send volume is pooled at the account level, so teams can manage brands without per-brand billing overhead.

Agent brand switching

OAuth agents can switch account and brand context. API keys stay pinned to one brand for machine-safe sending.

Contacts

Unlimited contacts

Every plan includes unlimited contacts. No per-contact pricing. Ever.

Lists and tags

Organize contacts into lists and apply tags for flexible segmentation.

Dynamic segments

Rule-based segments that update automatically as contacts change.

CSV import

Bulk import contacts from CSV files. Duplicate detection included.

Templates

Drag-and-drop editor

Visual email editor with brand-matched components. No HTML required.

AI content generation

Generate subject lines, body copy, and CTAs from prompts. Matches your brand voice.

Brand theming

Set your colors, fonts, and logo once. Every email matches your brand automatically.

Responsive design

Emails render perfectly on desktop, mobile, and every email client.

AI & MCP

MCP-native

The MCP tool surface lets Claude, ChatGPT, Cursor, Codex, Gemini, Windsurf, VS Code, and Zed control your entire email stack.

AI copywriting

AI writes your emails using your brand voice, audience context, and campaign goals.

NitroWheel LLM

NitroWheel LLM uses your brand voice, audience context, and performance data to guide better campaigns over time.

Natural language control

Describe what you want in plain English. Your AI translates it into campaigns, flows, and sends.

Infrastructure

Auto authentication

DKIM, SPF, and DMARC configured automatically when you verify your domain.

Separated streams

Transactional and marketing emails run on separate infrastructure. One won't affect the other.

BYO providers

Connect your own sending infrastructure (Amazon SES, Resend, Postmark, Mailgun, SendGrid) and AI provider keys on Pro and above.

Sub-200ms API

Median API response time under 200ms. Built for real-time integrations.

Analytics

Campaign analytics

Opens, clicks, bounces, unsubscribes. Per campaign and over time.

Flow analytics

Track performance at each step of your automations.

Deliverability monitoring

Domain health, bounce rates, and spam complaints tracked automatically.

AI insights

AI analyzes your metrics and suggests improvements. Available via MCP and dashboard.

Developer experience

REST API

Full REST API with OpenAPI spec. Every feature accessible programmatically.

Node.js SDK

TypeScript-first SDK on npm. Install with npm install @nitrosend/sdk.

Webhooks

Real-time event webhooks for delivery, opens, clicks, bounces, and more.

Transactional email

Send receipts, OTPs, password resets, and notifications via API. No campaign required.

Core email stack. Every plan. Start free.

Unlimited contacts on every plan. Free includes MCP/API access, campaigns, flows, contacts, approvals and the transactional API.