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.
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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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Claim this listing for $29Key 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 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
Limitations
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Frequently Asked Questions
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Getting Started
- 1 Create a Nitrosend account (Start free / Free forever plan available).
- 2 Follow the Quick start guide and Agent onboarding (skill.md) referenced on the site.
- 3 Connect an AI agent via MCP (e.g., Claude, ChatGPT, Codex, Cursor) — example: add the Nitrosend MCP transport.
- 4 Provide your sending provider keys (SendGrid, Postmark, Resend, Mailgun or SES) and configure domains/Brand Kit.
- 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
Site references Docs, Quick start guide and Agent onboarding (skill.md) and shows an MCP/CLI example command.
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