Zoho mail skill

Read, search, and manage Zoho Mail via the Zoho Mail REST API.

Install

openclaw skills install @ragsagar/zoho-mail-skill

Zoho Mail Skill

Read, search, and manage Zoho Mail directly from Clawdbot.

Setup

Go to Zoho API Console and create a Self Client
Note the Client ID and Client Secret
Generate a grant code with scopes: ZohoMail.messages.READ,ZohoMail.folders.READ,ZohoMail.accounts.READ

Exchange the grant code for a refresh token:

bash

curl -s -X POST "https://accounts.zoho.com/oauth/v2/token" \
  -d "code=YOUR_GRANT_CODE" \
  -d "client_id=YOUR_CLIENT_ID" \
  -d "client_secret=YOUR_CLIENT_SECRET" \
  -d "grant_type=authorization_code" | jq

Set environment variables:

bash

export ZOHO_CLIENT_ID="your-client-id"
export ZOHO_CLIENT_SECRET="your-client-secret"
export ZOHO_REFRESH_TOKEN="your-refresh-token"

Authentication

Zoho uses OAuth 2.0. Access tokens expire after 1 hour, so always refresh before making API calls. The refresh token does not expire unless revoked.

Get an access token

bash

ZOHO_ACCESS_TOKEN=$(curl -s -X POST "https://accounts.zoho.com/oauth/v2/token" \
  -d "refresh_token=$ZOHO_REFRESH_TOKEN" \
  -d "client_id=$ZOHO_CLIENT_ID" \
  -d "client_secret=$ZOHO_CLIENT_SECRET" \
  -d "grant_type=refresh_token" | jq -r '.access_token')

Important: Run this command before every API session or when you get a 401 error. All commands below assume $ZOHO_ACCESS_TOKEN is set.

Usage

All commands use curl with the Zoho-oauthtoken authorization header. Note: Zoho uses Zoho-oauthtoken prefix, not Bearer.

Get account ID

bash

curl -s "https://mail.zoho.com/api/accounts" \
  -H "Authorization: Zoho-oauthtoken $ZOHO_ACCESS_TOKEN" | jq '.data[0] | {accountId, mailboxAddress, firstName, lastName}'

Store the account ID for subsequent calls:

bash

ZOHO_ACCOUNT_ID=$(curl -s "https://mail.zoho.com/api/accounts" \
  -H "Authorization: Zoho-oauthtoken $ZOHO_ACCESS_TOKEN" | jq -r '.data[0].accountId')

List folders

bash

curl -s "https://mail.zoho.com/api/accounts/$ZOHO_ACCOUNT_ID/folders" \
  -H "Authorization: Zoho-oauthtoken $ZOHO_ACCESS_TOKEN" | jq '.data[] | {folderName, folderId, unreadCount, messageCount}'

Get Inbox folder ID

bash

INBOX_ID=$(curl -s "https://mail.zoho.com/api/accounts/$ZOHO_ACCOUNT_ID/folders" \
  -H "Authorization: Zoho-oauthtoken $ZOHO_ACCESS_TOKEN" | jq -r '.data[] | select(.folderName=="Inbox") | .folderId')

List inbox messages

bash

curl -s "https://mail.zoho.com/api/accounts/$ZOHO_ACCOUNT_ID/messages/view?folderId=$INBOX_ID&limit=10&start=0" \
  -H "Authorization: Zoho-oauthtoken $ZOHO_ACCESS_TOKEN" | jq '.data[] | {subject, sender, fromAddress, receivedTime, messageId, status2}'

List messages in a specific folder

bash

curl -s "https://mail.zoho.com/api/accounts/$ZOHO_ACCOUNT_ID/messages/view?folderId={folderId}&limit=10&start=0" \
  -H "Authorization: Zoho-oauthtoken $ZOHO_ACCESS_TOKEN" | jq '.data[] | {subject, sender, receivedTime, messageId}'

Read a specific email

bash

curl -s "https://mail.zoho.com/api/accounts/$ZOHO_ACCOUNT_ID/messages/{messageId}" \
  -H "Authorization: Zoho-oauthtoken $ZOHO_ACCESS_TOKEN" | jq '.data | {subject, sender, fromAddress, toAddress, ccAddress, receivedTime, content}'

Get email body content only

bash

curl -s "https://mail.zoho.com/api/accounts/$ZOHO_ACCOUNT_ID/messages/{messageId}/content" \
  -H "Authorization: Zoho-oauthtoken $ZOHO_ACCESS_TOKEN" | jq -r '.data.content'

Search emails

bash

curl -s "https://mail.zoho.com/api/accounts/$ZOHO_ACCOUNT_ID/messages/search?searchKey={query}&limit=10" \
  -H "Authorization: Zoho-oauthtoken $ZOHO_ACCESS_TOKEN" | jq '.data[] | {subject, sender, receivedTime, messageId, summary}'

Search syntax supports:

Simple text: searchKey=invoice
From filter: searchKey=from:john@example.com
Subject filter: searchKey=subject:quarterly report
Date range: searchKey=after:2024-01-01 before:2024-06-30
Combined: searchKey=from:boss@company.com subject:meeting

List email threads

bash

curl -s "https://mail.zoho.com/api/accounts/$ZOHO_ACCOUNT_ID/threads/view?folderId=$INBOX_ID&limit=10&start=0" \
  -H "Authorization: Zoho-oauthtoken $ZOHO_ACCESS_TOKEN" | jq '.data[] | {subject, threadId, messageCount}'

Get thread details (all messages in a thread)

bash

curl -s "https://mail.zoho.com/api/accounts/$ZOHO_ACCOUNT_ID/threads/{threadId}" \
  -H "Authorization: Zoho-oauthtoken $ZOHO_ACCESS_TOKEN" | jq

List labels/tags

bash

curl -s "https://mail.zoho.com/api/accounts/$ZOHO_ACCOUNT_ID/tags" \
  -H "Authorization: Zoho-oauthtoken $ZOHO_ACCESS_TOKEN" | jq '.data[] | {tagName, tagId, color}'

List attachments on an email

bash

curl -s "https://mail.zoho.com/api/accounts/$ZOHO_ACCOUNT_ID/folders/{folderId}/messages/{messageId}/attachments" \
  -H "Authorization: Zoho-oauthtoken $ZOHO_ACCESS_TOKEN" | jq '.data[] | {attachmentName, attachmentId, fileSize}'

Get account info

bash

curl -s "https://mail.zoho.com/api/accounts/$ZOHO_ACCOUNT_ID" \
  -H "Authorization: Zoho-oauthtoken $ZOHO_ACCESS_TOKEN" | jq '.data | {firstName, lastName, mailboxAddress, usedStorage, planStorage}'

Regional Endpoints

If your Zoho account is not in the US region, replace mail.zoho.com and accounts.zoho.com with:

Region	Mail API	Auth
US	mail.zoho.com	accounts.zoho.com
EU	mail.zoho.eu	accounts.zoho.eu
India	mail.zoho.in	accounts.zoho.in
Australia	mail.zoho.com.au	accounts.zoho.com.au
Japan	mail.zoho.jp	accounts.zoho.jp
Canada	mail.zohocloud.ca	accounts.zohocloud.ca

Notes

Access tokens expire after 1 hour — refresh before each session
The refresh token does not expire unless revoked
Rate limit: 30 API requests per minute per account
receivedTime is in milliseconds since epoch — convert with: date -d @$((receivedTime/1000))
status2 field: "0" = unread, "1" = read
Auth header uses Zoho-oauthtoken prefix, not Bearer
Keep your Client Secret and Refresh Token secure!

Examples

bash

# Full session: refresh token, get account, list inbox
ZOHO_ACCESS_TOKEN=$(curl -s -X POST "https://accounts.zoho.com/oauth/v2/token" \
  -d "refresh_token=$ZOHO_REFRESH_TOKEN" \
  -d "client_id=$ZOHO_CLIENT_ID" \
  -d "client_secret=$ZOHO_CLIENT_SECRET" \
  -d "grant_type=refresh_token" | jq -r '.access_token')

ZOHO_ACCOUNT_ID=$(curl -s "https://mail.zoho.com/api/accounts" \
  -H "Authorization: Zoho-oauthtoken $ZOHO_ACCESS_TOKEN" | jq -r '.data[0].accountId')

INBOX_ID=$(curl -s "https://mail.zoho.com/api/accounts/$ZOHO_ACCOUNT_ID/folders" \
  -H "Authorization: Zoho-oauthtoken $ZOHO_ACCESS_TOKEN" | jq -r '.data[] | select(.folderName=="Inbox") | .folderId')

# List latest 5 inbox emails
curl -s "https://mail.zoho.com/api/accounts/$ZOHO_ACCOUNT_ID/messages/view?folderId=$INBOX_ID&limit=5" \
  -H "Authorization: Zoho-oauthtoken $ZOHO_ACCESS_TOKEN" | jq '.data[] | {subject, sender, receivedTime}'

# Search for emails from a specific person
curl -s "https://mail.zoho.com/api/accounts/$ZOHO_ACCOUNT_ID/messages/search?searchKey=from:monika@example.com&limit=5" \
  -H "Authorization: Zoho-oauthtoken $ZOHO_ACCESS_TOKEN" | jq '.data[] | {subject, sender, summary}'

# Get unread count per folder
curl -s "https://mail.zoho.com/api/accounts/$ZOHO_ACCOUNT_ID/folders" \
  -H "Authorization: Zoho-oauthtoken $ZOHO_ACCESS_TOKEN" | jq '.data[] | select(.unreadCount > 0) | {folderName, unreadCount}'

Zoho mail skill

Install

Zoho Mail Skill

Setup

Authentication

Get an access token

Usage

Get account ID

List folders

Get Inbox folder ID

List inbox messages

List messages in a specific folder

Read a specific email

Get email body content only

Search emails

List email threads

Get thread details (all messages in a thread)

List labels/tags

List attachments on an email

Get account info

Regional Endpoints

Notes

Examples

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