CLI

Getting started

The AgentMail CLI lets you interact with the AgentMail API directly from your terminal. Create inboxes, send messages, manage threads, and more — all without writing code.

Installation

Install with npm:

$
npm install -g agentmail-cli

Authentication

Set your API key as an environment variable:

$
export AGENTMAIL_API_KEY=am_us_xxx

Or pass it directly with the --api-key flag. Get your key from the AgentMail Console.

Usage

Commands follow the pattern:

$
agentmail [resource] <command> [flags...]

Resources can also use colon syntax for subresources:

$
agentmail inboxes:messages send --inbox-id inb_xxx --to user@example.com --subject "Hello" --text "Hi there"

Use --help on any command for details.

Examples

$
# List inboxes
$
agentmail inboxes list
$
$
# Create an inbox
$
agentmail inboxes create --display-name "My Inbox"
$
$
# Send a message
$
agentmail inboxes:messages send \
>
  --inbox-id inb_xxx \
>
  --to user@example.com \
>
  --subject "Hello" \
>
  --text "Hi there"
$
$
# List threads
$
agentmail inboxes:threads list --inbox-id inb_xxx
$
$
# Create a webhook
$
agentmail webhooks create \
>
  --event-type message.received \
>
  --url https://example.com/webhook

Features

The CLI provides commands for:

• Inbox management: Create, list, update, and delete inboxes
• Message operations: Send, reply, forward, and retrieve emails
• Thread management: List and manage email threads
• Drafts: Create, update, send, and delete drafts
• Webhooks: Create and manage webhook endpoints
• Domains: Add and verify custom domains
• Pods: Manage pod resources and their inboxes
• API keys: Create and manage API keys

Global flags

Output formats

Control how results are displayed with the --format flag:

• json — JSON output (default)
• yaml — YAML output
• pretty — Human-readable formatted output
• raw — Raw API response
• explore — Interactive explorer

You can also use --transform with GJSON syntax to query and filter output data.

AI skill

The CLI is also available as an AgentSkills skill, allowing AI coding assistants to use it on your behalf. Install it with:

$
openclaw skills install agentmail-to/agentmail-skills/agentmail-cli

This works with any compatible tool, including OpenClaw, Claude Code, Cursor, and Codex. See the Skills page for more details.