Unitpost

Unitpost is an email delivery platform that handles every type of email your product needs — password resets, receipts, newsletters, and marketing campaigns. Send via API, SDKs, or directly from AI agents using MCP. 1. All customer messages in one place • Product + marketing messages • One contact list • One system • One bill 2. Describe it. We build it. • Describe a welcome email or full campaign • Unitpost builds the templates and connects everything • You approve before anything goes out 3. Same actions everywhere • Dashboard, API, SDKs, and MCP are one product • If you can do it in the UI, an agent can do it • Full visibility into what happened 4. Pay for sending, not for storing people • Unlimited contacts on paid plans • Your monthly price is a sending balance 5. Built to grow beyond email • Same contacts, same balance • More channels (SMS, WhatsApp — Soon) • Automations that connect the steps (Soon) • One system, not multiple tools 6. Open-source email components • Same engine that powers Unitpost • Available as @unitpost/email • JSON model + constrained TSX + cross-client renderer • Works standalone or with Unitpost Key features • Visual editor and React-based customization • Built-in deliverability optimization • Unlimited contacts with pay-per-send pricing Designed for developers and product teams who need reliable email infrastructure from a single platform.