GET STARTED · QUICKSTART
Quickstart — your first agent in 5 minutes
By the end of this guide, you'll have Grain installed, a brief written, and an agent producing your first Frame. No credit card required.
FREE1,000 runs/month on the free plan. No credit card. Upgrade only when you outgrow it.
Prerequisites
- macOS 12+ · Windows 10+ · Linux x64
- A Grain account (sign up at grain.sh/signup)
- One tool you want to connect (Slack, GitHub, HubSpot, etc.)
Step 1 — Install
# macOS / Linux
$ curl -fsSL https://grain.sh/install.sh | sh
# Windows
$ winget install grain.cli
✓ installed grain v2026.5.2
Step 2 — Sign in
Open the desktop app or run grain login. Browser SSO opens automatically.
Step 3 — Write your first brief
Briefs are how you tell agents what to do. Plain English, typed outputs, linked knowledge.
# refund-desk.brief
title: Handle EU refund requests
output: Refund decision · approved | denied | escalate
knowledge: [eu-refund-policy.pdf, hubspot:tickets]
agent: Closer
Step 4 — Hire an agent
Pick from the roster of 11 named specialists, or build your own. Each agent has a prompt, tool list, and memory scope.