Nitrosend

Nitrosend

Nitrosend is an AI-native, full‑stack email platform that builds transactional emails, flows and on‑brand newsletters by prompting from AI agents (Claude, ChatGPT, Codex, Cursor and other MCP‑compatible agents), intended for agencies, SaaS teams and builders managing one or many brands.

Nitrosend is ai tools software teams evaluate for business operations. Use this page to review pricing, integration signals, and the best alternatives before you commit.

Free API 70/100
#153 in Automation (153 tools)
Just launched
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Quick Overview

Best for: Business Operations

What it does

AI Tools software for decision-makers comparing workflow fit and alternatives.

Best fit

Business Operations

Pricing snapshot

Free from $0 forever

Next step

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Nitrosend

Nitrosend is positioned as an AI-native email platform that embeds full-stack email automation inside AI agents (Claude, ChatGPT, Codex, Cursor and MCP‑compatible agents). It targets agencies, SaaS teams and builders who run transactional email, flows and on‑brand newsletters across one or multiple brands. The product emphasizes prompting instead of a traditional dashboard, enabling teams to create production-ready, brand-matched emails and entire automation flows via natural language and agent integrations, with human approval gates and enterprise delivery features.

Email for AI agents. They sign up, send and reply. Discussion | Link

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Key Features

Agent-native prompting (MCP integrations)

Connects to Claude, ChatGPT, Codex, Cursor, Gemini and any MCP-compatible agent so you can build sequences, campaigns and automations by prompting rather than using a dashboard.

NitroWheel LLM continuous optimisation

Email performance (opens, clicks, replies) is fed back into NitroWheel LLM to continuously optimise subject lines, send times and content.

Delightfully prompted, pixel-perfect design

Generates pixel-perfect, brand-matched responsive emails from natural language descriptions using each brand's Brand Kit (colors, fonts, logo); no template editor required.

Transactional + Marketing + Multi-brand

Supports transactional emails, marketing campaigns, and automation flows across multiple brands, domains and campaigns from a single platform.

Bring‑Your‑Own sending and AI keys

Supports using existing sending providers (SendGrid, Postmark, Resend, Mailgun, SES) and your own Anthropic or OpenAI keys for AI.

Deliverability & infrastructure features

Enterprise-level reliability with 99.99% uptime, automatic DKIM/SPF/DMARC configuration, dedicated IPs, auto-warmup and SplitStreams to separate transactional and marketing traffic.

API / CLI / MCP Email integration

Exposes an API/CLI and MCP transport so agents and code can trigger sends and workflows (example command shown on site).

Pricing

Free Tier Available

Free forever plan: $0, includes 8,000 emails then 500/month, 20 AI actions/month, unlimited contacts, 1 brand and 1 seat.

Free

$0 forever
  • Emails: 8,000 then 500/mo
  • Transactional & Marketing
  • AI actions: 20/mo
  • Contacts: Free & Unlimited

Pro

$20 per month
  • Emails: 20,000/month
  • NitroWheel LLM included
  • AI actions: 1,000/mo
  • Contacts: Free & Unlimited

Ultra

$100 per month
  • Emails: 125,000/month
  • AI actions: 5,000/mo
  • Brands: 5
  • Seats: 10

Enterprise

$300 per month (starting tier shown)
  • Email volume tiers shown up to millions / mo
  • AI actions: Unlimited
  • Unlimited brands & domains included
  • SSO / SAML

Use Cases

Agency & multi-brand management

Manage multiple brands, campaigns, domains and audiences from one account while keeping each brand's Brand Kit and context separate.

AI-driven newsletters & campaigns

Prompt Claude or another supported agent to generate on-brand newsletters and marketing campaigns without manual drag-and-drop editing.

Transactional and product workflows

Create transactional emails (password resets, order receipts, onboarding sequences) and separate transactional infrastructure using SplitStreams.

Headless / agent-native automation

Run email marketing headless from your AI agent or via API/CLI; customers highlight workflows that run without logging into a dashboard.

Integrations

Anthropic (Claude Code, Cowork)

Run Nitrosend from Claude agents and prompt-driven workflows.

OpenAI (ChatGPT, Codex)

Connect ChatGPT/Codex agents to generate email content and flows.

Cursor

Cursor IDE integration for agent-driven email generation and workflows.

Gemini / MCP-compatible agents

Supports Gemini and any MCP-compatible agent for headless, agent-native email automation.

Sending providers (SendGrid, Postmark, Resend, Mailgun, SES)

Bring-your-own sending provider to handle email delivery while retaining control over sending infrastructure.

Benefits

Much faster email production and automation by prompting agents instead of manual builders (customer claims: "10x faster").
Consistent, pixel-perfect brand emails generated automatically from Brand Kits.
Enterprise-grade deliverability and infrastructure (99.99% uptime, auto-authentication, dedicated IPs).
Flexible stack: use your own sending provider and AI keys to retain control.
Works across multiple brands and supports both transactional and marketing use cases from one platform.

Limitations

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Frequently Asked Questions

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Getting Started

  1. 1 Create a Nitrosend account (Start free / Free forever plan available).
  2. 2 Follow the Quick start guide and Agent onboarding (skill.md) referenced on the site.
  3. 3 Connect an AI agent via MCP (e.g., Claude, ChatGPT, Codex, Cursor) — example: add the Nitrosend MCP transport.
  4. 4 Provide your sending provider keys (SendGrid, Postmark, Resend, Mailgun or SES) and configure domains/Brand Kit.
  5. 5 Prompt your agent to generate sequences, campaigns or transactional emails and review via human approval gates before sending.

Support

docs

Quick start guide, Docs and Agent onboarding (skill.md) referenced on the site.

contact

Contact us link available from the site footer (homepage: https://nitrosend.com/).

API

Available: Yes
Documentation:

Site references Docs, Quick start guide and Agent onboarding (skill.md) and shows an MCP/CLI example command.

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