---
title: "About Unitpost"
description: "Unitpost is an email and SMS platform for developers and the AI agents they work with, made by Work Reactor Inc., a Delaware corporation."
url: https://www.unitpost.com/about
section: "About"
updated: 2026-11-02
---
# About Unitpost

Email and SMS for developers and their agents.

Unitpost is an email and SMS platform for developers and the AI agents they work with, made by Work Reactor Inc., a Delaware corporation.

## What we do differently

- **One list for email and SMS.** Receipts, campaigns and texts share contacts and one API key. ([Contacts](https://www.unitpost.com/contacts))
- **Built for AI agents.** A hosted MCP server, a CLI and nine official SDKs. ([MCP server](https://www.unitpost.com/ai/mcp))
- **Your reputation, guarded.** Hard bounces are suppressed. A bad campaign pauses itself. ([Deliverability](https://www.unitpost.com/docs/deliverability))
- **Priced by sending.** Unlimited contacts on paid plans, with marketing included. ([Pricing](https://www.unitpost.com/pricing))

## Company

Work Reactor Inc., Delaware corporation, operating as Unitpost.

2055 Limestone Road STE 200-C  
Wilmington, DE 19808  
United States

- Support: support@unitpost.com ([support](https://www.unitpost.com/support))
- Legal: legal@unitpost.com ([Terms](https://www.unitpost.com/terms), [Privacy](https://www.unitpost.com/privacy))