Mailgun

Access the Mailgun API with managed OAuth authentication. Send transactional emails, manage domains, routes, templates, mailing lists, suppressions, and webhooks.

Quick Start

# List domains
python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://gateway.maton.ai/mailgun/v3/domains')
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/mailgun/v3/{resource}

Replace {resource} with the actual Mailgun API endpoint path. The gateway proxies requests to api.mailgun.net/v3 (US region) and automatically injects your OAuth token.

Regional Note: Mailgun has US and EU regions. The gateway defaults to US region (api.mailgun.net).

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

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

Connection Management

Manage your Mailgun 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=mailgun&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': 'mailgun'}).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": "78b5a036-c621-40c2-b74b-276195735af2",
    "status": "ACTIVE",
    "creation_time": "2026-02-12T02:24:16.551210Z",
    "last_updated_time": "2026-02-12T02:25:03.542838Z",
    "url": "https://connect.maton.ai/?session_token=...",
    "app": "mailgun",
    "metadata": {}
  }
}

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

Delete Connection