Openclaw | AgentMail | Documentation

Getting started

Openclaw (formerly Moltbot) is an open-source AI personal assistant that runs on your own devices and integrates with messaging platforms like WhatsApp, Telegram, Discord, and Slack. By adding AgentMail to Openclaw, your agent gains the ability to send and receive emails, enabling two-way email conversations alongside your existing chat channels.

There are two ways to integrate AgentMail with Openclaw: using the official AgentMail skill or creating a custom skill.

Option 1: Official AgentMail Skill (Recommended)

The easiest way to add email capabilities to Openclaw is by installing the official AgentMail skill from skills.sh. This skill is maintained by the AgentMail team and provides comprehensive email functionality.

Installation

Install the skill using the Openclaw CLI:

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

Or install via ClawHub:

$ npx clawhub@latest install agentmail

Configuration

Add your AgentMail API key to the skill configuration in ~/.openclaw/openclaw.json:

1 {
2   "skills": {
3     "entries": {
4       "agentmail": {
5         "enabled": true,
6         "env": {
7           "AGENTMAIL_API_KEY": "your-api-key-here"
8         }
9       }
10     }
11   }
12 }

Get your API key from the AgentMail Console.

Features

The official skill includes:

Inbox management: Create scalable inboxes on-demand with unique email addresses
Message operations: Send emails with text and HTML content for best deliverability
Thread management: Group related messages in conversations
Attachments: Send and receive attachments with Base64 encoding
Drafts: Create drafts for human-in-the-loop approval before sending
Pods: Multi-tenant isolation for SaaS platforms
Idempotency: Safe retries on create operations
Real-time events: WebSocket and webhook support for notifications

Verify installation

Check that the skill is loaded:

$ openclaw skills list --eligible

You should see agentmail in the list of available skills.

Option 2: Custom Skill

For more control over the integration, you can create a custom AgentMail skill. Skills are directories containing a SKILL.md file with instructions for Openclaw.

Create the skill directory

Create a new skill in your Openclaw workspace:

$ mkdir -p ~/.openclaw/skills/agentmail

Create the skill file

Create ~/.openclaw/skills/agentmail/SKILL.md with the following content:

1 ---
2 name: agentmail
3 description: Send and receive emails using AgentMail
4 requires:
5   env:
6     - AGENTMAIL_API_KEY
7 ---
8 
9 # AgentMail Skill
10 
11 You can send and receive emails using the AgentMail API. Use the `exec` tool to run curl commands against the AgentMail API.
12 
13 ## API Base URL
14 
15 ```
16 https://api.agentmail.to/v0
17 ```
18 
19 ## Authentication
20 
21 Include your API key in the Authorization header:
22 
23 ```
24 Authorization: Bearer $AGENTMAIL_API_KEY
25 ```
26 
27 ## Common Operations
28 
29 ### List inboxes
30 
31 ```bash
32 curl -s -H "Authorization: Bearer $AGENTMAIL_API_KEY" \
33   https://api.agentmail.to/v0/inboxes
34 ```
35 
36 ### Create an inbox
37 
38 ```bash
39 curl -s -X POST -H "Authorization: Bearer $AGENTMAIL_API_KEY" \
40   -H "Content-Type: application/json" \
41   -d '{"display_name": "My Agent"}' \
42   https://api.agentmail.to/v0/inboxes
43 ```
44 
45 ### Send an email
46 
47 ```bash
48 curl -s -X POST -H "Authorization: Bearer $AGENTMAIL_API_KEY" \
49   -H "Content-Type: application/json" \
50   -d '{
51     "to": ["recipient@example.com"],
52     "subject": "Hello from Openclaw",
53     "text": "This email was sent by my AI assistant."
54   }' \
55   https://api.agentmail.to/v0/inboxes/{inbox_id}/messages
56 ```
57 
58 ### List messages in an inbox
59 
60 ```bash
61 curl -s -H "Authorization: Bearer $AGENTMAIL_API_KEY" \
62   https://api.agentmail.to/v0/inboxes/{inbox_id}/messages
63 ```
64 
65 ### Reply to a message
66 
67 ```bash
68 curl -s -X POST -H "Authorization: Bearer $AGENTMAIL_API_KEY" \
69   -H "Content-Type: application/json" \
70   -d '{"text": "Thanks for your email!"}' \
71   https://api.agentmail.to/v0/inboxes/{inbox_id}/messages/{message_id}/reply
72 ```

Configure the skill

Add your AgentMail API key to the skill configuration in ~/.openclaw/openclaw.json:

1 {
2   "skills": {
3     "entries": {
4       "agentmail": {
5         "enabled": true,
6         "env": {
7           "AGENTMAIL_API_KEY": "your-api-key-here"
8         }
9       }
10     }
11   }
12 }

Verify the skill