Outlook

Access the Microsoft Outlook API (via Microsoft Graph) with managed OAuth authentication. Read, send, and manage emails, folders, calendar events, and contacts.

Quick Start

bash

# Get user profile
python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://gateway.maton.ai/outlook/v1.0/me')
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

code

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

Replace {native-api-path} with the actual Microsoft Graph API endpoint path. The gateway proxies requests to graph.microsoft.com and automatically injects your OAuth token.

Authentication

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

code

Authorization: Bearer $MATON_API_KEY

Environment Variable: Set your API key as MATON_API_KEY:

bash

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 Microsoft OAuth connections at https://ctrl.maton.ai.

List Connections

bash

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://ctrl.maton.ai/connections?app=outlook&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

bash

python <<'EOF'
import urllib.request, os, json
data = json.dumps({'app': 'outlook'}).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

bash

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:

json

{
  "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": "outlook",
    "metadata": {}
  }
}

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

Delete Connection

bash

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 Outlook connections, specify which one to use with the Maton-Connection header:

bash

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://gateway.maton.ai/outlook/v1.0/me')
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

User Profile

bash

GET /outlook/v1.0/me

Mail Folders

List Mail Folders

bash

GET /outlook/v1.0/me/mailFolders

Get Mail Folder

bash

GET /outlook/v1.0/me/mailFolders/{folderId}

Well-known folder names: Inbox, Drafts, SentItems, DeletedItems, Archive, JunkEmail

Create Mail Folder

bash

POST /outlook/v1.0/me/mailFolders
Content-Type: application/json

{
  "displayName": "My Folder"
}

Delete Mail Folder

bash

DELETE /outlook/v1.0/me/mailFolders/{folderId}

List Child Folders

bash

GET /outlook/v1.0/me/mailFolders/{folderId}/childFolders

Messages

List Messages

bash

GET /outlook/v1.0/me/messages

From specific folder:

bash

GET /outlook/v1.0/me/mailFolders/Inbox/messages

With query filter:

bash

GET /outlook/v1.0/me/messages?$filter=isRead eq false&$top=10

Get Message

bash

GET /outlook/v1.0/me/messages/{messageId}

Create Draft

bash

POST /outlook/v1.0/me/messages
Content-Type: application/json

{
  "subject": "Hello",
  "body": {
    "contentType": "Text",
    "content": "This is the email body."
  },
  "toRecipients": [
    {
      "emailAddress": {
        "address": "recipient@example.com"
      }
    }
  ]
}

Send Message

bash

POST /outlook/v1.0/me/sendMail
Content-Type: application/json

{
  "message": {
    "subject": "Hello",
    "body": {
      "contentType": "Text",
      "content": "This is the email body."
    },
    "toRecipients": [
      {
        "emailAddress": {
          "address": "recipient@example.com"
        }
      }
    ]
  },
  "saveToSentItems": true
}

Send Existing Draft

bash

POST /outlook/v1.0/me/messages/{messageId}/send

Update Message

bash

PATCH /outlook/v1.0/me/messages/{messageId}
Content-Type: application/json

{
  "isRead": true
}

Delete Message

bash

DELETE /outlook/v1.0/me/messages/{messageId}

Move Message

bash

POST /outlook/v1.0/me/messages/{messageId}/move
Content-Type: application/json

{
  "destinationId": "{folderId}"
}

Calendar

List Calendars

bash

GET /outlook/v1.0/me/calendars

List Events

bash

GET /outlook/v1.0/me/calendar/events

With date filter:

bash

GET /outlook/v1.0/me/calendar/events?$filter=start/dateTime ge '2024-01-01'&$top=10

Get Event

bash

GET /outlook/v1.0/me/events/{eventId}

Create Event

bash

POST /outlook/v1.0/me/calendar/events
Content-Type: application/json

{
  "subject": "Meeting",
  "start": {
    "dateTime": "2024-01-15T10:00:00",
    "timeZone": "UTC"
  },
  "end": {
    "dateTime": "2024-01-15T11:00:00",
    "timeZone": "UTC"
  },
  "attendees": [
    {
      "emailAddress": {
        "address": "attendee@example.com"
      },
      "type": "required"
    }
  ]
}

Delete Event

bash

DELETE /outlook/v1.0/me/events/{eventId}

Contacts

List Contacts

bash

GET /outlook/v1.0/me/contacts

Get Contact

bash

GET /outlook/v1.0/me/contacts/{contactId}

Create Contact

bash

POST /outlook/v1.0/me/contacts
Content-Type: application/json

{
  "givenName": "John",
  "surname": "Doe",
  "emailAddresses": [
    {
      "address": "john.doe@example.com"
    }
  ]
}

Delete Contact

bash

DELETE /outlook/v1.0/me/contacts/{contactId}

Query Parameters

Use OData query parameters:

•$top=10 - Limit results
•$skip=20 - Skip results (pagination)
•$select=subject,from - Select specific fields
•$filter=isRead eq false - Filter results
•$orderby=receivedDateTime desc - Sort results
•$search="keyword" - Search content

Code Examples

JavaScript

javascript

const response = await fetch(
  'https://gateway.maton.ai/outlook/v1.0/me/messages?$top=10',
  {
    headers: {
      'Authorization': `Bearer ${process.env.MATON_API_KEY}`
    }
  }
);

Python

python

import os
import requests

response = requests.get(
    'https://gateway.maton.ai/outlook/v1.0/me/messages',
    headers={'Authorization': f'Bearer {os.environ["MATON_API_KEY"]}'},
    params={'$top': 10, '$filter': 'isRead eq false'}
)

Notes

•Use me as the user identifier for the authenticated user
•Message body content types: Text or HTML
•Well-known folder names work as folder IDs: Inbox, Drafts, SentItems, etc.
•Calendar events use ISO 8601 datetime format
•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 Outlook connection
401	Invalid or missing Maton API key
429	Rate limited (10 req/sec per account)
4xx/5xx	Passthrough error from Microsoft Graph API

Troubleshooting: Invalid API Key

When you receive a "Invalid API key" error, ALWAYS follow these steps before concluding there is an issue:

•Check that the MATON_API_KEY environment variable is set:

bash

echo $MATON_API_KEY

•Verify the API key is valid by listing connections:

bash

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

Outlook

Quick Start

Base URL

Authentication

Getting Your API Key

Connection Management

List Connections

Create Connection

Get Connection

Delete Connection

Specifying Connection

API Reference

User Profile

Mail Folders

List Mail Folders

Get Mail Folder

Create Mail Folder

Delete Mail Folder

List Child Folders

Messages

List Messages

Get Message

Create Draft

Send Message

Send Existing Draft

Update Message

Delete Message

Move Message

Calendar

List Calendars

List Events

Get Event

Create Event

Delete Event

Contacts

List Contacts

Get Contact

Create Contact

Delete Contact

Query Parameters

Code Examples

JavaScript

Python

Notes

Error Handling

Troubleshooting: Invalid API Key

Resources