byungkyu

Gmail

Gmail API integration with managed OAuth. Read, send, and manage emails, threads, labels, and drafts. Use this skill when users want to interact with Gmail. For other third party apps, use the api-gateway skill (https://clawhub.ai/byungkyu/api-gateway).

v1.0.6 Recently Updated Updated Today

Installation

clawhub install gmail

Requires npm i -g clawhub

View on ClawHub Download .zip

8.7k

Downloads

21

Stars

51

current installs

55 all-time

7

Versions

Gmail

Access the Gmail API with managed OAuth authentication. Read, send, and manage emails, threads, labels, and drafts.

Quick Start

              # List messages
python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://gateway.maton.ai/google-mail/gmail/v1/users/me/messages?maxResults=10')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF
            

Base URL

https://gateway.maton.ai/google-mail/{native-api-path}

Replace {native-api-path} with the actual Gmail API endpoint path. The gateway proxies requests to gmail.googleapis.com and automatically injects your OAuth token.

Authentication

All requests require the Maton API key in the Authorization header:

Authorization: Bearer $MATON_API_KEY

Environment Variable: Set your API key as MATON_API_KEY:

export MATON_API_KEY="YOUR_API_KEY"

Getting Your API Key

Sign in or create an account at maton.ai
Go to maton.ai/settings
Copy your API key

Connection Management

Manage your Google OAuth connections at https://ctrl.maton.ai.

List Connections

              python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://ctrl.maton.ai/connections?app=google-mail&status=ACTIVE')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF
            

Create Connection

              python <<'EOF'
import urllib.request, os, json
data = json.dumps({'app': 'google-mail'}).encode()
req = urllib.request.Request('https://ctrl.maton.ai/connections', data=data, method='POST')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
req.add_header('Content-Type', 'application/json')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF
            

Get Connection

              python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://ctrl.maton.ai/connections/{connection_id}')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF
            

Response:

              {
  "connection": {
    "connection_id": "21fd90f9-5935-43cd-b6c8-bde9d915ca80",
    "status": "ACTIVE",
    "creation_time": "2025-12-08T07:20:53.488460Z",
    "last_updated_time": "2026-01-31T20:03:32.593153Z",
    "url": "https://connect.maton.ai/?session_token=...",
    "app": "google-mail",
    "metadata": {}
  }
}
            

Open the returned url in a browser to complete OAuth authorization.

Delete Connection

              python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://ctrl.maton.ai/connections/{connection_id}', method='DELETE')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF
            

Specifying Connection

If you have multiple Gmail connections, specify which one to use with the Maton-Connection header:

              python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://gateway.maton.ai/google-mail/gmail/v1/users/me/messages')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
req.add_header('Maton-Connection', '21fd90f9-5935-43cd-b6c8-bde9d915ca80')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF
            

If omitted, the gateway uses the default (oldest) active connection.

API Reference

List Messages

GET /google-mail/gmail/v1/users/me/messages?maxResults=10

With query filter:

GET /google-mail/gmail/v1/users/me/messages?q=is:unread&maxResults=10

Get Message

GET /google-mail/gmail/v1/users/me/messages/{messageId}

With metadata only:

              GET /google-mail/gmail/v1/users/me/messages/{messageId}?format=metadata&metadataHeaders=From&metadataHeaders=Subject&metadataHeaders=Date
            

Send Message

              POST /google-mail/gmail/v1/users/me/messages/send
Content-Type: application/json

{
  "raw": "BASE64_ENCODED_EMAIL"
}
            

List Labels

GET /google-mail/gmail/v1/users/me/labels

List Threads

GET /google-mail/gmail/v1/users/me/threads?maxResults=10

Get Thread

GET /google-mail/gmail/v1/users/me/threads/{threadId}

Modify Message Labels

              POST /google-mail/gmail/v1/users/me/messages/{messageId}/modify
Content-Type: application/json

{
  "addLabelIds": ["STARRED"],
  "removeLabelIds": ["UNREAD"]
}
            

Trash Message

POST /google-mail/gmail/v1/users/me/messages/{messageId}/trash

Create Draft

              POST /google-mail/gmail/v1/users/me/drafts
Content-Type: application/json

{
  "message": {
    "raw": "BASE64URL_ENCODED_EMAIL"
  }
}
            

Send Draft

              POST /google-mail/gmail/v1/users/me/drafts/send
Content-Type: application/json

{
  "id": "{draftId}"
}
            

Get Profile

GET /google-mail/gmail/v1/users/me/profile

Query Operators

Use in the q parameter:

is:unread - Unread messages
is:starred - Starred messages
from:email@example.com - From specific sender
to:email@example.com - To specific recipient
subject:keyword - Subject contains keyword
after:2024/01/01 - After date
before:2024/12/31 - Before date
has:attachment - Has attachments

Code Examples

JavaScript

              const response = await fetch(
  'https://gateway.maton.ai/google-mail/gmail/v1/users/me/messages?maxResults=10',
  {
    headers: {
      'Authorization': `Bearer ${process.env.MATON_API_KEY}`
    }
  }
);
            

Python

              import os
import requests

response = requests.get(
    'https://gateway.maton.ai/google-mail/gmail/v1/users/me/messages',
    headers={'Authorization': f'Bearer {os.environ["MATON_API_KEY"]}'},
    params={'maxResults': 10, 'q': 'is:unread'}
)
            

Notes

Use me as userId for the authenticated user
Message body is base64url encoded in the raw field
Common labels: INBOX, SENT, DRAFT, STARRED, UNREAD, TRASH
IMPORTANT: When using curl commands, use curl -g when URLs contain brackets (fields[], sort[], records[]) to disable glob parsing
IMPORTANT: When piping curl output to jq or other commands, environment variables like $MATON_API_KEY may not expand correctly in some shell environments. You may get "Invalid API key" errors when piping.

Error Handling

Status	Meaning
400	Missing Gmail connection
401	Invalid or missing Maton API key
429	Rate limited (10 req/sec per account)
4xx/5xx	Passthrough error from Gmail API

Troubleshooting: API Key Issues

Check that the MATON_API_KEY environment variable is set:

echo $MATON_API_KEY

Verify the API key is valid by listing connections:

              python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://ctrl.maton.ai/connections')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF
            

Troubleshooting: Invalid App Name

Ensure your URL path starts with google-mail. For example:

Correct: https://gateway.maton.ai/google-mail/gmail/v1/users/me/messages
Incorrect: https://gateway.maton.ai/gmail/v1/users/me/messages

Resources

Statistics

Downloads 8.7k

Stars 21

Current installs 51

All-time installs 55

Versions 7

Comments 2

Created Feb 2, 2026

Updated Feb 25, 2026

Author

byungkyu

@byungkyu

Latest Changes

v1.0.6 · Feb 10, 2026

- Added clawdbot metadata for skill compatibility and requirements. - Declared required environment variable (`MATON_API_KEY`) in the metadata section. - No changes to functional documentation or API usage.

Quick Install

clawhub install gmail