Zoho mail MCP server for AI agents and assistants

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with Zoho mail MCP or direct API to read messages, send emails, organize conversations, and manage labels through natural language.

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Zoho Mail is a secure and ad-free email hosting platform with collaboration features. It helps businesses communicate efficiently while maintaining privacy and administrative control.

15 Tools

Try Zoho mail now

Type what you want done — sign in and watch it run live in the Tool Router playground.

TOOL ROUTER PLAYGROUND
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TOOLS

Supported Tools

Every Zoho mail action and event your agent gets out of the box.

List Zoho Mail Accounts

Retrieves all Zoho Mail accounts associated with the authenticated user.

Domain Operations

Tool to perform domain operations like verify, set primary domain, hosting, aliases, MX/SPF checks, DKIM management, and notifications.

Get All Bookmarks

Tool to retrieve all personal bookmarks from a Zoho Mail account.

Delete Groups in Bulk

Delete multiple groups in a single API call.

Delete Group

Tool to delete a specific mail group by its zgid.

Create Email Draft

Tool to create and save an email draft in Zoho Mail without sending it.

Get Message Content

Tool to retrieve the full content/body of a specific Zoho Mail email.

List Emails

Tool to retrieve a list of emails from a Zoho Mail account folder.

Reply to Email

Tool to reply to an existing email via Zoho Mail API.

Send Email

Tool to send an email via Zoho Mail API.

Get Organization User Storage Details

Tool to retrieve storage details for a specific user in the organization.

Update Organization Spam Process Type

Tool to update organization spam processing type.

Update User Storage

Updates a user's storage allocation within a Zoho Mail organization.

Search Messages

Tool to search emails in a Zoho Mail account using Zoho's searchKey syntax.

Update Group Settings

Tool to update group settings.

SETUP GUIDE

Connect Zoho mail MCP Tool with your Agent

1

Install Composio

typescript
npm install @composio/core ai @ai-sdk/mcp @ai-sdk/openai
Install the Composio SDK and your agent framework
2

Create a session with MCP enabled

typescript
import { Composio } from "@composio/core";

const composio = new Composio();
const { mcp } = await composio.create("your-user-id", {
  toolkits: ["zoho_mail"],
  mcp: true,
});
Create a session scoped to Zoho mail and read its MCP URL and headers
3

Connect your agent to the MCP server

typescript
import { createMCPClient } from "@ai-sdk/mcp";
import { openai } from "@ai-sdk/openai";
import { generateText, stepCountIs } from "ai";

const client = await createMCPClient({
  transport: { type: "http", url: mcp.url, headers: mcp.headers },
});

const { text } = await generateText({
  model: openai("gpt-5.6-sol"),
  tools: await client.tools(),
  prompt: "Get my latest 5 emails from the inbox",
  stopWhen: stepCountIs(10),
});

console.log(text);
await client.close();
Pass the session's MCP URL and headers to your agent and run a Zoho mail request
SETUP GUIDE

Connect Zoho mail API Tool with your Agent

1

Install Composio

typescript
npm install @composio/core @composio/openai openai
Install the Composio SDK, the OpenAI provider, and the OpenAI SDK
2

Create a Composio session

typescript
import OpenAI from "openai";
import { Composio } from "@composio/core";
import { OpenAIResponsesProvider } from "@composio/openai";

const composio = new Composio({ provider: new OpenAIResponsesProvider() });
const client = new OpenAI();

const session = await composio.create("your-user-id", { toolkits: ["zoho_mail"] });
const tools = await session.tools();
Initialize Composio with the OpenAI Responses provider and create a session scoped to Zoho mail
3

Run Zoho mail tools with your agent

typescript
let response = await client.responses.create({
  model: "gpt-5.6-sol",
  tools,
  input: [{ role: "user", content: "Get my latest 5 emails from the inbox" }],
});

while (response.output.some((o) => o.type === "function_call")) {
  const outputs = await composio.provider.handleToolCalls(session, response.output);
  response = await client.responses.create({
    model: "gpt-5.6-sol",
    tools,
    previous_response_id: response.id,
    input: outputs,
  });
}

console.log(response.output_text);
Send a request, execute the Zoho mail tool calls through the session, and print the final answer

Why Use Composio?

AI Native Zoho mail Integration

  • Supports both Zoho mail MCP and direct API based integrations
  • Structured, LLM-friendly schemas for reliable tool execution
  • Rich coverage for reading, writing, and querying your Zoho mail data

Managed Auth

  • Built-in OAuth handling with automatic token refresh and rotation
  • Central place to manage, scope, and revoke Zoho mail access
  • Per user and per environment credentials instead of hard-coded keys

Agent Optimized Design

  • Tools are tuned using real error and success rates to improve reliability over time
  • Comprehensive execution logs so you always know what ran, when, and on whose behalf

Enterprise Grade Security

  • Fine-grained RBAC so you control which agents and users can access Zoho mail
  • Scoped, least privilege access to Zoho mail resources
  • Full audit trail of agent actions to support review and compliance

Rolling this out across your team?

Give your team centralized access control across every framework with Composio’s MCP Gateway.

EXPLORE MCP GATEWAY
FAQ

Frequently asked questions

No. Composio provides a managed OAuth app for Zoho mail, so you sign in with your normal Zoho mail account and approve access. If you later want the consent screen to show your own company name, you can add your own Zoho mail OAuth app in the Composio dashboard, and every connection after that uses it.

Yes! Composio's Tool Router enables agents to use multiple toolkits. Learn more.

Yes. Composio is SOC 2 Type II compliant and is built to keep your Zoho mail connection and credentials secure. OAuth tokens and API keys are encrypted, and sensitive customer data is protected at rest and in transit.

Composio also undergoes independent security testing and continuously monitors its systems for security threats. You can review the latest reports and policies in the Composio Trust Center.

Composio maintains and updates all toolkit integrations automatically, so your agents always work with the latest API versions.

When you connect a Zoho mail account through Composio, every action runs under that account, so anything the agent creates, sends, or changes shows up in Zoho mail as done by you. Keep an approval step in your prompt for actions with side effects, such as sending or deleting, and have the agent draft first.

Exactly the ones Zoho mail lists on its consent screen when you connect. Review that screen before approving. If you connect a work account, your Zoho mail administrator may need to approve the app first, and you can revoke the access inside Zoho mail whenever you want.

Yes. Composio supports multiple connected accounts for the same app, and that works in Claude, ChatGPT, or any other assistant you connect through Composio. Give each Zoho mail connection a name such as work or personal, and the assistant uses the one you mention in the request. Each account keeps its own credentials and nothing is merged.

Composio refreshes Zoho mail tokens automatically, so day to day you do nothing. If you revoke access inside Zoho mail, or Zoho mail invalidates the session, the connection shows as expired in Composio and the agent stops acting on that account until you reconnect it, which is a single sign-in.

Composio's free Hobby plan includes 100,000 tool calls per month with no credit card, and up to 20,000 of those can run through Composio-managed apps like Zoho mail. Personal Zoho mail use rarely gets near that. Paid plans add higher limits and team features, and Zoho mail's own pricing is unaffected.

Built-in connectors usually give one AI access to a limited set of apps. Many people use Composio because it lets their AI connect to more apps than it normally supports, or connect to multiple accounts for the same app (e.g. connect Claude to multiple Zoho mail accounts).

With Composio, you connect Zoho mail once and then use it across different AI assistants without setting it up separately in each one. Connect your apps to Composio once, then connect Composio to whichever AI you use, whether that's Claude, ChatGPT, Hermes, or your own custom assistant.

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