Unitpost
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Unitpost

Email API with SMS built in, free for 5,000 emails a month

AI Developer Toolsunitpost.com
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Published on Nov 2, 2026

Overview

Unitpost handles transactional email, campaigns and SMS for developer teams. A hosted MCP server (mcp.unitpost.com/mcp) lets AI agents such as Cursor and Claude Code send and manage email through OAuth, and the in-app assistant, Unit, drafts templates and campaigns, then asks before it sends.

Use cases: sign-up, password-reset and receipt emails; product newsletters; SMS one-time codes and alerts in 177 countries; reading inbound email through webhooks.

Pricing: one monthly price becomes your sending balance, contacts are unlimited on paid plans (from $10/month), and the first 5,000 emails each month are free.

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