Emily Lane
March 12, 2026

The new Courier CLI brings your notification infrastructure directly into AI agent workflows like Cursor and Claude Code. Developers can send messages, debug issues, and manage notifications straight from the terminal, enabling faster iteration and automation.
With support for both CLI commands and MCP integrations, teams can choose how agents interact with Courier in structured or flexible ways. It’s the fastest way to build, test, and manage notifications alongside your code.
Read more about the new CLI here.
Learn more: See how to manage templates from the CLI and MCP · Model Context Protocol (MCP) docs · Read more on terminal-first notification development

Redesigned Preferences Editor and hosted preference center
Build, preview, and launch a branded notification preference center with no frontend code.
By Emily Lane
July 18, 2026

Experiments: A/B Testing in Journeys
Run 2 to 10 message variants on a single send node in a journey, split live traffic by weight, compare per-variant results, and promote the one you want.
By Emily Lane
July 09, 2026

AI Localization
Localize Courier templates in seconds with AI Translation, now available in Design Studio for email, SMS, push, in-app, and chat.
By Emily Lane
June 29, 2026
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