Agents can self-onboard. No human needed.

Everything an agent needs to run email on Nitrosend lives at one URL. Signup, OAuth, vocabulary, tools, safety gates. No API key. No dashboard.

Point your agent at the skill

Skill https://nitrosend.com/SKILL.md

It teaches the agent the whole platform, then walks it from signup to first send.

Connect from any agent

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

$ codex mcp add nitrosend --url https://api.nitrosend.com/mcp

Then prompt:

"Read nitrosend.com/SKILL.md and onboard yourself. Create the account, connect our domain and send me a test."

Beta by request

Create real inboxes for your agents. On your own domain.

Email in, not just out. Replies, confirmations and support threads land on the contact that sent them, ready for you and your agents. Gmail and Microsoft are external agent hostile: aggressive bot detection, and no way for your agent to hold an address of its own. Nitrosend gives your agents real inboxes on your apex domain, [email protected], [email protected], one for every agent you run. Inboxes are currently in beta by request: request access in the app.

Identity

Your domain, their address

Real addresses on the apex domain you own, [email protected], not a subdomain workaround and not somebody else's domain. A verifiable identity your agent can sign up with and be reached at.

Conversation

Outbound and inbound

Agents read, search and reply over MCP. A customer answers at 3am, your agent handles it and triages the inbox before you even open it. Every thread stays searchable.

Escalation

Smart forwarding

The agent works the routine replies and forwards anything that needs a human to the right inbox. Approval gates sit exactly where you want them.

Coexistence

Plays nicely with Gmail

Every message, claimed or not, still forwards to the provider you already use. Your team keeps Gmail, Outlook or Zoho exactly as today; your agents get Nitrosend on the same domain.

Agents buy it, run it and improve it.

Every layer of email an agent needs, shipping in order. Human approval gates stay wherever you want them.

Shipped

Agentic signup & onboarding

Your agent creates the account, onboards, sorts billing and sends its first email with zero human steps. Committed users already run this daily.

Beta by request

Agent Inboxes

Real inboxes for your agents on your own domain, coexisting with Gmail. Agents send, receive and hold 1-1 conversations on behalf of your brand.

Coming soon

Agentic Outreach

Targeted, personalised outbound run by your agent. It researches prospects, writes like a person, sends in sequence, handles replies and escalates what matters.

In development

Agentic Goal Based Marketing

Set a goal for your brand's email. Nitrosend plans, creates, runs and optimises the whole programme, and gets smarter every send.

Run your emailing in-agent.

8 billion people. Soon 100 billion agents.

Agents are already better at email than people. They read every message, never miss a follow-up and write personally at any scale. But Gmail is agent hostile, and legacy email platforms can't design over an API. Nitrosend is the email layer built for agents: one they can buy, operate and improve on their own, with human approval gates exactly where you want them.

Email for agents.