Overview
How Claude and Courier fit together
Claude is Anthropic's family of AI models. With Courier, use Claude to write and localize notification content, generate ready-to-send HTML email, and let your own Claude agent send and manage notifications over MCP.
Courier uses AI inside the product, in the Journeys AI agent node and AI Translation in Design Studio, and your Claude agent drives Courier over the Model Context Protocol (MCP), agent skills, and the CLI.
You need a Courier account. The in-product AI features are built in, and your agent connects to Courier over the remote MCP server.
Why Courier
What you get with Claude + Courier
Add an AI step to a journey
The AI node in Courier Journeys classifies a user, branches on the result, and writes per-channel copy from a single prompt.
Translate a template in seconds
AI Translation in Design Studio localizes a template across every channel (email, SMS, push, in-app, chat). Add a locale, review side by side, override anything.
Connect your agent over MCP
Point your Claude agent at Courier's hosted MCP server at https://mcp.courier.com to send and manage notifications in natural language.
Ship with Courier agent skills
Courier ships agent skill packs that teach AI coding assistants Courier best practices, so your agent builds sends the right way.
Drive Courier from the CLI
Send messages, manage users, and inspect delivery logs from the command line, as part of your agent and dev workflow.
Design an email with Claude, send it with Courier
Ask Claude to generate a ready-to-send HTML email, bring it into Courier as a template, and deliver it to your users on any channel.
Use cases
What teams build with it
Setup
Get started with AI
The AI features are built into Courier, so there is nothing to configure. Here is what you can do right away.
FAQ
Frequently asked questions
Can I use Claude with Courier?
Yes, in both directions. Courier's AI agent node in Journeys can run Claude Opus as a workflow step, and AI coding agents like Claude Code can drive Courier through its hosted MCP server, agent skills, and CLI.
Which Courier features use Claude or AI?
Two features. The AI agent node in Journeys runs frontier models like Claude Opus to classify users into personas, branch on nuanced logic, and generate channel-appropriate copy from one prompt. AI Translation in Design Studio localizes a template across email, SMS, push, in-app, and chat.
How do I connect my AI agent to Courier?
Connect Claude Code or Claude Desktop to Courier's hosted MCP server at mcp.courier.com. Your Courier API key, created in Settings and passed as a header, authenticates each request. It is the same key you use with the REST API or SDKs.
What can my agent do through the Courier MCP server?
It exposes more than 140 tools covering the full Courier API. Your agent can send messages, manage recipient profiles, debug deliveries, configure lists, and work with Journeys and Automations, all from natural-language instructions.
What are Courier agent skills?
They are a public repository of structured guidance that AI coding agents read while building notifications, covering the channels, notification types, and compliance with code examples. A SKILL.md routing file points the agent to the one or two relevant files. It works with Claude Code.
What is the Courier CLI?
The Courier CLI is a native binary covering the full Courier REST API on macOS, Linux, and Windows, with no runtime dependencies. Send messages, manage profiles, and inspect delivery logs from the terminal. It suits AI agents like Claude Code and CI/CD pipelines.
Is Courier an AI provider, or does it replace Claude?
Neither. Claude does the reasoning and writes the copy; Courier orchestrates and delivers it across email, SMS, push, and Courier Inbox. They are complementary: the model generates the content, Courier handles routing and delivery.
More
