Agents

Ship production-ready notifications with your AI coding agent

Install Courier Skills in the tool you already use and it builds notifications the way an experienced Courier engineer would. Add the hosted MCP server when you want to test against your account.

Start free Read the skills docs

Pick your tool

One skill, every coding agent

Courier Skills works in every tool that reads a SKILL.md. Each page has the install for that tool, what to build first, and how to add MCP for testing.

Claude Code

Install the Courier plugin and ship production-ready notifications from the terminal.

Cursor

Install Courier Skills and ship production-ready notifications from Cursor's Agent mode.

Codex

Install Courier Skills and ship production-ready notifications from the Codex CLI or IDE extension.

VS Code

Install Courier Skills and ship production-ready notifications from the VS Code chat panel.

Windsurf

Install Courier Skills and ship production-ready notifications from Windsurf's Cascade agent.

Antigravity

Install Courier Skills and ship production-ready notifications from Antigravity's IDE and CLI.

Gemini CLI

Install Courier Skills and ship production-ready notifications from Gemini CLI.

Grok Build

Install Courier Skills and ship production-ready notifications from Grok Build.

OpenCode

Install Courier Skills and ship production-ready notifications from OpenCode.

Zed

Install Courier Skills and ship production-ready notifications from Zed's agent panel.

Warp

Install Courier Skills and ship production-ready notifications from Warp's agent.

Devin

Put Courier Skills in the repo and let Devin ship production-ready notifications from its own environment.

What’s included

Four pieces, all free

The skill does the building. The MCP server, the CLI, and the machine-readable docs are there when the agent needs to test, run, or look something up.

Courier Skills

About 40 short guides plus a routing file that points your agent at the one or two it needs for the task: seven channels, transactional and growth patterns, routing, reliability, Inbox.

npx skills add trycourier/courier-skills

Skills docs

Hosted MCP server

144 tools covering the full Courier API, for testing and prototyping: publish to your test workspace, send yourself a test, read the delivery events. Hosted, authenticated with your API key in a header. Nothing to run locally.

https://mcp.courier.com

MCP docs

Courier CLI

The full Courier API in the terminal your agent already uses: send messages, manage users, inspect delivery logs.

npm install -g @trycourier/cli

CLI docs

Docs for agents

Machine-readable docs. Point your agent at llms.txt for the map, llms-full.txt for everything in one file, or add .md to any docs URL to get that page as Markdown.

https://www.courier.com/docs/llms.txt

AI onboarding guide

For agents

If you are an agent reading this

Do these in order. Everything you need is linked or pasteable.

# Courier for agents

1. Read https://www.courier.com/docs/llms.txt for the documentation index.
2. Install the skill: npx skills add trycourier/courier-skills
   Then open SKILL.md; its routing table maps each task to the one or two guides to load.
3. Build against the Courier SDKs and API. Use the test-environment API key.
4. To test what you built: connect to https://mcp.courier.com over MCP with
   header api_key: <test key>. 144 tools. Send a test, then read the delivery events.
5. New workspace, nothing set up yet: https://www.courier.com/docs/get-started/send-a-message

FAQ

Frequently asked questions

Which AI coding tools does Courier support?

Any tool that reads a skills directory or a SKILL.md can use Courier Skills, and any MCP client can connect to the hosted server. Courier documents the install for Claude Code, Cursor, Codex, VS Code, Windsurf, Antigravity, Gemini CLI, Grok Build, OpenCode, Zed, Warp, and Devin.

What's in Courier Skills?

A routing file plus about 40 reference guides covering seven channels, transactional and growth patterns, routing, reliability, and Inbox. Your agent reads the router first and loads only the one or two guides a task needs. Install it with npx skills add trycourier/courier-skills.

Do I need the MCP server?

Not to build. The skill is enough for your agent to write templates, routing, journeys, and Inbox code in your repo. Add the MCP server when you want to test and prototype against your Courier account from the editor: publish to your test workspace, send yourself a test, read the delivery events.

Is it safe to let an agent work against my Courier account?

Yes. Every Courier workspace has separate test and production environments, each with its own API key. Let the agent build and experiment with the test key, then switch to the production key when you're ready to ship. It works the same way in both environments.

Can my agent read Courier's documentation directly?

Yes. courier.com/docs/llms.txt is a structured index of every docs page, courier.com/docs/llms-full.txt is the full documentation in one file, and any docs URL with .md appended returns that page as Markdown.