Nitrosend
A full-stack email platform for AI agents, supporting marketing and transactional email and real inboxes on their own domains with human approval.
About Nitrosend
Nitrosend is a full-stack email platform for AI agents: registration, OAuth authorization, vocabulary, tools, and safety gates can all be completed at one URL. Agents then send marketing and transactional email on behalf of brands and communicate directly with customers. The platform gives agents real inboxes on their own domains, can coexist with Gmail, and supports sending, receiving, and one-to-one conversations, with agents executing and humans approving. The Free plan gives 8,000 emails on signup with no expiry, followed by 500 free emails per month; the Pro plan costs $20 per month and includes 20,000 emails, making it suitable for development and operations teams that need email capabilities for agents.
Best for
Best use cases
Agents represent a brand by sending marketing and transactional email
Give agents real inboxes on their own domains for one-to-one customer communication
Agents self-register and connect, with human approval and oversight
Upgrade to Pro after sending volume grows to get 20,000 emails per month
Features
One-stop agent onboarding
Registration, OAuth, vocabulary, tools, and safety gates are completed in one URL, with no API key or dashboard required.
Agent inboxes
Provides agents with real inboxes on their own domains, coexisting with Gmail and supporting sending, receiving, and one-to-one conversations.
Marketing and transactional email
Agents can send marketing and transactional email and talk directly with customers.
Human approval
Agents handle execution while humans retain approval control.
Pros
- One-stop agent onboarding: registration, OAuth, vocabulary, tools, and safety gates in one URL
- Agents get real inboxes on their own domains and can coexist with Gmail
- Agent execution with human approval
- The free plan gives 8,000 non-expiring emails on signup, then 500 free emails monthly
Cons
- Plan sending quotas are limits, not guaranteed instant sending capacity; the sender's capacity must be increased gradually through mature, clean sending volume.
Pricing Plans
Free
- 8,000 emails on signup, no expiry
- 500 free emails per month after they are used
- No credit card required
Pro
- 20,000 emails per month
- Includes NitroWheel LLM
- 5 brands
- 3 domains
* Pricing information is for reference only. Please refer to the latest announcement on Nitrosend's official website.