Create an audience from email events

Create an audience from email events

Saves a frozen cohort of the contacts who opened, clicked or otherwise engaged in a time window or send, or with an exclude rule those who did not.

The audience builds asynchronously: poll it with include=build until it is ready before sending to it.

Set up

Use the first option your agent supports.

MCP (official, remote)

Add this server to your agent's MCP settings, then sign in when asked.

{ "mcpServers": { "brew": { "url": "https://brew.new/api/mcp" } } }

Call the MCP tool create_audience_from_events.

Server URL: https://brew.new/api/mcp

CLI (official)

Install the command, then confirm it runs.

brew install getbrew/tap/brew-cli
brew-cli --version

Run brew-cli audiences from-events.

Set $BREW_API_KEY in your environment first (get a key: https://brew.new/settings/api).

API (official)

• Base URL: https://brew.new/api
• Endpoint: POST /v1/audiences/from-events
• Auth: send the header Authorization: Bearer $BREW_API_KEY
• Get a key: https://brew.new/settings/api
• Docs: https://docs.brew.new/api-reference/api/api-introduction

Before doing anything else, make one read-only call to confirm access.

Rules

• Ask the user before anything that sends messages, costs money, or changes data.
• Never print API keys.