Getting Started

Manual Setup

Step-by-step config for Cursor and Claude Desktop.

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Need an API key first? Follow the steps below to create one from the Atoms platform.

Get Your API Key

1

Open Settings

Click your profile in the top-left of app.smallest.ai and select Settings.

Atoms platform profile dropdown showing the Settings option in the left sidebar
Open the settings menu from your profile dropdown
2

Go to API Keys

Click API Keys in the left sidebar, then click Create API Key in the top-right.

Atoms platform API Keys settings page showing existing keys and the Create API Key button
The API Keys page — click Create API Key to generate a new key
3

Name and Create

Give your key a descriptive name (e.g., atoms-mcp-server) and click Create API Key. Copy and save it — you won’t see it again.

Create New API Key dialog with a name input field and Create API Key button
Enter a name for your API key and click Create

Install

Zero dependencies — no Node.js, no npm.

$curl -fsSL https://raw.githubusercontent.com/smallest-inc/mcp-server/main/install.sh | bash

It prompts for your API key and writes the config for both Cursor and Claude Desktop automatically.

Skip to Restart your editor below.

Restart your editor

Cmd+Shift+P (Mac) or Ctrl+Shift+P (Windows) → Developer: Reload Window

Verify

Go to Cursor Settings → MCP. You should see atoms listed with a green dot.

Open a new chat (make sure you’re in Agent mode, not Ask mode) and type:

List all my agents

You should see your Atoms agents listed back. If you do — you’re done!

Next steps

Head to the Prompt Cookbook — it has copy-paste prompts for everything you can do.