Zoho Mail

---

name: zoho-mail

description: |

Zoho Mail API integration with managed OAuth. Send, receive, and manage emails, folders, and labels.

Use this skill when users want to send emails, read messages, manage folders, or work with email labels in Zoho Mail.

For other third party apps, use the api-gateway skill (https://clawhub.ai/byungkyu/api-gateway).

Requires network access and valid Maton API key.

metadata:

author: maton

version: "1.0"

clawdbot:

emoji: 🧠

homepage: "https://maton.ai"

requires:

env:

- MATON_API_KEY

---

# Zoho Mail

Access the Zoho Mail API with managed OAuth authentication. Send, receive, search, and manage emails with full folder and label management.

Quick Start

# List all accounts
python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://gateway.maton.ai/zoho-mail/api/accounts')
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/zoho-mail/{native-api-path}

Replace `{native-api-path}` with the actual Zoho Mail API endpoint path. The gateway proxies requests to `mail.zoho.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

1. Sign in or create an account at [maton.ai](https://maton.ai)

2. Go to [maton.ai/settings](https://maton.ai/settings)

3. Copy your API key

Connection Management

Manage your Zoho Mail 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=zoho-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': 'zoho-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": "zoho-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 Zoho Mail 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/zoho-mail/api/accounts')
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

Account Operations

#### Get All Accounts

Retrieve all mail accounts for the authenticated user.

GET /zoho-mail/api/accounts

**Example:**

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

#### Get Account Details

GET /zoho-mail/api/accounts/{accountId}

Folder Operations

#### List All Folders

GET /zoho-mail/api/accounts/{accountId}/folders

**Example:**

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://gateway.maton.ai/zoho-mail/api/accounts/{accountId}/folders')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

**Response:**

{
  "status": {
    "code": 200,
    "description": "success"
  },
  "data": [
    {
      "folderId": "1367000000000008014",
      "folderName": "Inbox",
      "folderType": "Inbox",
      "path": "/Inbox",
      "imapAccess": true,
      "isArchived": 0,
      "URI": "https://mail.zoho.com/api/accounts/1367000000000008002/folders/1367000000000008014"
    },
    {
      "folderId": "1367000000000008016",
      "folderName": "Drafts",
      "folderType": "Drafts",
      "path": "/Drafts",
      "imapAccess": true,
      "isArchived": 0
    }
  ]
}

#### Create Folder

POST /zoho-mail/api/accounts/{accountId}/folders
Content-Type: application/json

{
  "folderName": "My Custom Folder"
}

#### Rename Folder

PUT /zoho-mail/api/accounts/{accountId}/folders/{folderId}
Content-Type: application/json

{
  "folderName": "Renamed Folder"
}

#### Delete Folder

DELETE /zoho-mail/api/accounts/{accountId}/folders/{folderId}

Label Operations

#### List Labels

GET /zoho-mail/api/accounts/{accountId}/labels

**Example:**

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://gateway.maton.ai/zoho-mail/api/accounts/{accountId}/labels')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

#### Create Label

POST /zoho-mail/api/accounts/{accountId}/labels
Content-Type: application/json

{
  "labelName": "Important"
}

#### Update Label

PUT /zoho-mail/api/accounts/{accountId}/labels/{labelId}
Content-Type: application/json

{
  "labelName": "Updated Label"
}

#### Delete Label

DELETE /zoho-mail/api/accounts/{accountId}/labels/{labelId}

Email Message Operations

#### List Emails in Folder

GET /zoho-mail/api/accounts/{accountId}/messages/view?folderId={folderId}

**Query Parameters:**

| Parameter | Type | Description |

|-----------|------|-------------|

| `folderId` | long | Folder ID to list messages from |

| `limit` | integer | Number of messages to return (default: 50) |

| `start` | integer | Offset for pagination |

| `sortBy` | string | Sort field (e.g., `date`) |

| `sortOrder` | boolean | `true` for ascending, `false` for descending |

**Example:**

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://gateway.maton.ai/zoho-mail/api/accounts/{accountId}/messages/view?folderId={folderId}&limit=10')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

#### Search Emails

GET /zoho-mail/api/accounts/{accountId}/messages/search?searchKey={query}

**Query Parameters:**

| Parameter | Type | Description |

|-----------|------|-------------|

| `searchKey` | string | Search query |

| `limit` | integer | Number of results to return |

| `start` | integer | Offset for pagination |

**Example:**

python <<'EOF'
import urllib.request, os, json
import urllib.parse
query = urllib.parse.quote('from:sender@example.com')
req = urllib.request.Request(f'https://gateway.maton.ai/zoho-mail/api/accounts/{{accountId}}/messages/search?searchKey={query}')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

#### Get Email Content

GET /zoho-mail/api/accounts/{accountId}/folders/{folderId}/messages/{messageId}/content

**Example:**

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://gateway.maton.ai/zoho-mail/api/accounts/{accountId}/folders/{folderId}/messages/{messageId}/content')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

#### Get Email Headers

GET /zoho-mail/api/accounts/{accountId}/folders/{folderId}/messages/{messageId}/header

#### Get Email Metadata

GET /zoho-mail/api/accounts/{accountId}/folders/{folderId}/messages/{messageId}/details

#### Get Original Message (MIME)

GET /zoho-mail/api/accounts/{accountId}/messages/{messageId}/originalmessage

#### Send Email

POST /zoho-mail/api/accounts/{accountId}/messages
Content-Type: application/json

{
  "fromAddress": "sender@yourdomain.com",
  "toAddress": "recipient@example.com",
  "subject": "Email Subject",
  "content": "Email body content",
  "mailFormat": "html"
}

**Request Body Fields:**

| Field | Type | Required | Description |

|-------|------|----------|-------------|

| `fromAddress` | string | Yes | Sender's email address |

| `toAddress` | string | Yes | Recipient's email address |

| `subject` | string | Yes | Email subject |

| `content` | string | Yes | Email body content |

| `ccAddress` | string | No | CC recipient |

| `bccAddress` | string | No | BCC recipient |

| `mailFormat` | string | No | `html` or `plaintext` (default: `html`) |

| `askReceipt` | string | No | `yes` or `no` for read receipt |

| `encoding` | string | No | Character encoding (default: `UTF-8`) |

**Example - Send Email:**

python <<'EOF'
import urllib.request, os, json
data = json.dumps({
    "fromAddress": "sender@yourdomain.com",
    "toAddress": "recipient@example.com",
    "subject": "Hello from Zoho Mail API",
    "content": "<h1>Hello!</h1><p>This is a test email.</p>",
    "mailFormat": "html"
}).encode()
req = urllib.request.Request('https://gateway.maton.ai/zoho-mail/api/accounts/{accountId}/messages', 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

**Scheduling Parameters (Optional):**

| Field | Type | Description |

|-------|------|-------------|

| `isSchedule` | boolean | Enable scheduling |

| `scheduleType` | integer | 1-5 for preset times; 6 for custom |

| `timeZone` | string | Required if scheduleType=6 (e.g., `GMT 5:30`) |

| `scheduleTime` | string | Required if scheduleType=6 (format: `MM/DD/YYYY HH:MM:SS`) |

#### Reply to Email

POST /zoho-mail/api/accounts/{accountId}/messages/{messageId}
Content-Type: application/json

{
  "fromAddress": "sender@yourdomain.com",
  "toAddress": "recipient@example.com",
  "subject": "Re: Original Subject",
  "content": "Reply content"
}

#### Save Draft

POST /zoho-mail/api/accounts/{accountId}/messages
Content-Type: application/json

{
  "fromAddress": "sender@yourdomain.com",
  "toAddress": "recipient@example.com",
  "subject": "Draft Subject",
  "content": "Draft content",
  "mode": "draft"
}

#### Update Message (Mark as Read/Unread, Move, Flag)

PUT /zoho-mail/api/accounts/{accountId}/updatemessage
Content-Type: application/json

{
  "messageId": ["messageId1", "messageId2"],
  "folderId": "folderId",
  "mode": "markAsRead"
}

**Mode Options:**

**Example - Mark as Read:**

python <<'EOF'
import urllib.request, os, json
data = json.dumps({
    "messageId": ["1234567890123456789"],
    "folderId": "9876543210987654321",
    "mode": "markAsRead"
}).encode()
req = urllib.request.Request('https://gateway.maton.ai/zoho-mail/api/accounts/{accountId}/updatemessage', data=data, method='PUT')
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

#### Delete Email

DELETE /zoho-mail/api/accounts/{accountId}/folders/{folderId}/messages/{messageId}

Attachment Operations

#### Upload Attachment

POST /zoho-mail/api/accounts/{accountId}/messages/attachments
Content-Type: multipart/form-data

#### Get Attachment Info

GET /zoho-mail/api/accounts/{accountId}/folders/{folderId}/messages/{messageId}/attachmentinfo

#### Download Attachment

GET /zoho-mail/api/accounts/{accountId}/folders/{folderId}/messages/{messageId}/attachments/{attachmentId}

Pagination

Zoho Mail uses offset-based pagination:

GET /zoho-mail/api/accounts/{accountId}/messages/view?folderId={folderId}&start=0&limit=50

For subsequent pages, increment `start` by `limit`:

Code Examples

JavaScript

const response = await fetch(
  'https://gateway.maton.ai/zoho-mail/api/accounts',
  {
    headers: {
      'Authorization': `Bearer ${process.env.MATON_API_KEY}`
    }
  }
);
const data = await response.json();

Python

import os
import requests

response = requests.get(
    'https://gateway.maton.ai/zoho-mail/api/accounts',
    headers={'Authorization': f'Bearer {os.environ["MATON_API_KEY"]}'}
)
data = response.json()

Notes

Error Handling

| Status | Meaning |

|--------|---------|

| 400 | Missing Zoho Mail connection or invalid request |

| 401 | Invalid or missing Maton API key |

| 429 | Rate limited |

| 4xx/5xx | Passthrough error from Zoho Mail API |

Troubleshooting: API Key Issues

1. Check that the `MATON_API_KEY` environment variable is set:

echo $MATON_API_KEY

2. 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

1. Ensure your URL path starts with `zoho-mail`. For example:

Resources