ProductDeveloper Tools
Unitpost
Send transactional email, campaigns and SMS from one API. Coding agents connect through a hosted MCP server with OAuth. Free plan: 5,000 emails a month.
Why it exists
Unitpost puts email and SMS in one place for developers and for the AI agents they work with. Agents connect to the hosted MCP server over OAuth and can draft templates, manage contacts and send, with the same permissions as the dashboard. Unit, the in-app assistant, writes templates and campaigns and waits for your approval before sending. SMS covers 177 countries. One flat monthly price becomes your sending balance, with unlimited contacts. Start free with 5,000 emails a month.
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