How to integrate Zoho inventory MCP with Mastra AI

This guide walks you through connecting Zoho inventory to Mastra AI using the Composio tool router. By the end, you'll have a working Zoho inventory agent that can check current stock for a specific item, list all pending sales orders today, create a new purchase order for supplier through natural language commands. This guide will help you understand how to give your Mastra AI agent real control over a Zoho inventory account through Composio's Zoho inventory MCP server. Before we dive in, let's take a quick look at the key ideas and tools involved.

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Zoho Inventory is a cloud-based inventory and order management solution for businesses. It streamlines stock tracking, order fulfillment, and multi-channel inventory control.

58 Tools

Introduction

This guide walks you through connecting Zoho inventory to Mastra AI using the Composio tool router. By the end, you'll have a working Zoho inventory agent that can check current stock for a specific item, list all pending sales orders today, create a new purchase order for supplier through natural language commands.

This guide will help you understand how to give your Mastra AI agent real control over a Zoho inventory account through Composio's Zoho inventory MCP server.

Before we dive in, let's take a quick look at the key ideas and tools involved.

Also integrate Zoho inventory with

ChatGPTOpenAI Agents SDKClaude Agent SDKClaude CodeClaude CoworkCodexOpenCodeCursorVS CodeOpenClawHermesCLIGoogle ADKLangChainVercel AI SDKLlamaIndexCrewAI

TL;DR

Here's what you'll learn:
  • Set up your environment so Mastra, OpenAI, and Composio work together
  • Create a Tool Router session in Composio that exposes Zoho inventory tools
  • Connect Mastra's MCP client to the Composio generated MCP URL
  • Fetch Zoho inventory tool definitions and attach them as a toolset
  • Build a Mastra agent that can reason, call tools, and return structured results
  • Run an interactive CLI where you can chat with your Zoho inventory agent

What is Mastra AI?

Mastra AI is a TypeScript framework for building AI agents with tool support. It provides a clean API for creating agents that can use external services through MCP.

Key features include:

  • MCP Client: Built-in support for Model Context Protocol servers
  • Toolsets: Organize tools into logical groups
  • Step Callbacks: Monitor and debug agent execution
  • OpenAI Integration: Works with OpenAI models via @ai-sdk/openai

What is the Zoho inventory MCP server, and what's possible with it?

The Zoho inventory MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Zoho Inventory account. It provides structured and secure access to your inventory management system, so your agent can perform actions like tracking stock levels, managing sales and purchase orders, updating product details, and syncing inventory across sales channels on your behalf.

  • Real-time stock tracking and updates: Let your agent monitor inventory levels, adjust quantities, and receive alerts when items are running low or out of stock.
  • Order management automation: Have the agent create, update, or track sales and purchase orders, making it easy to keep tabs on every transaction.
  • Product catalog management: Direct your agent to add new products, update existing details, or manage pricing and SKU information to keep your catalog current and accurate.
  • Multi-channel inventory syncing: Enable your agent to synchronize inventory data across multiple online stores and marketplaces, ensuring consistency and reducing errors.
  • Shipment and fulfillment handling: Empower your agent to generate shipment orders, track deliveries, and manage warehouse operations for streamlined fulfillment.

What is the Composio tool router, and how does it fit here?

What is Composio SDK?

Composio's Composio SDK helps agents find the right tools for a task at runtime. You can plug in multiple toolkits (like Gmail, HubSpot, and GitHub), and the agent will identify the relevant app and action to complete multi-step workflows. This can reduce token usage and improve the reliability of tool calls. Read more here: Getting started with Composio SDK

The tool router generates a secure MCP URL that your agents can access to perform actions.

How the Composio SDK works

The Composio SDK follows a three-phase workflow:

  1. Discovery: Searches for tools matching your task and returns relevant toolkits with their details.
  2. Authentication: Checks for active connections. If missing, creates an auth config and returns a connection URL via Auth Link.
  3. Execution: Executes the action using the authenticated connection.

Step-by-step Guide

Step by step09 STEPS
1

Prerequisites

Before starting, make sure you have:
  • Node.js 18 or higher
  • A Composio account with an active API key
  • An OpenAI API key
  • Basic familiarity with TypeScript
2

Getting API Keys for OpenAI and Composio

OpenAI API Key
  • Go to the OpenAI dashboard and create an API key.
  • You need credits or a connected billing setup to use the models.
  • Store the key somewhere safe.
Composio API Key
  • Log in to the Composio dashboard.
  • Go to Settings and copy your API key.
  • This key lets your Mastra agent talk to Composio and reach Zoho inventory through MCP.
3

Install dependencies

bash
npm install @composio/core @mastra/core @mastra/mcp @ai-sdk/openai dotenv

Install the required packages.

What's happening:

  • @composio/core is the Composio SDK for creating MCP sessions
  • @mastra/core provides the Agent class
  • @mastra/mcp is Mastra's MCP client
  • @ai-sdk/openai is the model wrapper for OpenAI
  • dotenv loads environment variables from .env
4

Set up environment variables

bash
COMPOSIO_API_KEY=your_composio_api_key_here
COMPOSIO_USER_ID=your_user_id_here
OPENAI_API_KEY=your_openai_api_key_here

Create a .env file in your project root.

What's happening:

  • COMPOSIO_API_KEY authenticates your requests to Composio
  • COMPOSIO_USER_ID tells Composio which user this session belongs to
  • OPENAI_API_KEY lets the Mastra agent call OpenAI models
5

Import libraries and validate environment

typescript
import "dotenv/config";
import { openai } from "@ai-sdk/openai";
import { Agent } from "@mastra/core/agent";
import { MCPClient } from "@mastra/mcp";
import { Composio } from "@composio/core";
import * as readline from "readline";

import type { AiMessageType } from "@mastra/core/agent";

const openaiAPIKey = process.env.OPENAI_API_KEY;
const composioAPIKey = process.env.COMPOSIO_API_KEY;
const composioUserID = process.env.COMPOSIO_USER_ID;

if (!openaiAPIKey) throw new Error("OPENAI_API_KEY is not set");
if (!composioAPIKey) throw new Error("COMPOSIO_API_KEY is not set");
if (!composioUserID) throw new Error("COMPOSIO_USER_ID is not set");

const composio = new Composio({
  apiKey: composioAPIKey as string,
});
What's happening:
  • dotenv/config auto loads your .env so process.env.* is available
  • openai gives you a Mastra compatible model wrapper
  • Agent is the Mastra agent that will call tools and produce answers
  • MCPClient connects Mastra to your Composio MCP server
  • Composio is used to create a Tool Router session
6

Create a Tool Router session for Zoho inventory

typescript
async function main() {
  const session = await composio.create(
    composioUserID as string,
    {
      toolkits: ["zoho_inventory"],
    },
  );

  const composioMCPUrl = session.mcp.url;
  console.log("Zoho inventory MCP URL:", composioMCPUrl);
What's happening:
  • create spins up a short-lived MCP HTTP endpoint for this user
  • The toolkits array contains "zoho_inventory" for Zoho inventory access
  • session.mcp.url is the MCP URL that Mastra's MCPClient will connect to
7

Configure Mastra MCP client and fetch tools

typescript
const mcpClient = new MCPClient({
    id: composioUserID as string,
    servers: {
      nasdaq: {
        url: new URL(composioMCPUrl),
        requestInit: {
          headers: session.mcp.headers,
        },
      },
    },
    timeout: 30_000,
  });

console.log("Fetching MCP tools from Composio...");
const composioTools = await mcpClient.getTools();
console.log("Number of tools:", Object.keys(composioTools).length);
What's happening:
  • MCPClient takes an id for this client and a list of MCP servers
  • The headers property includes the x-api-key for authentication
  • getTools fetches the tool definitions exposed by the Zoho inventory toolkit
8

Create the Mastra agent

typescript
const agent = new Agent({
    name: "zoho_inventory-mastra-agent",
    instructions: "You are an AI agent with Zoho inventory tools via Composio.",
    model: "openai/gpt-5",
  });
What's happening:
  • Agent is the core Mastra agent
  • name is just an identifier for logging and debugging
  • instructions guide the agent to use tools instead of only answering in natural language
  • model uses openai("gpt-5") to configure the underlying LLM
9

Set up interactive chat interface

typescript
let messages: AiMessageType[] = [];

console.log("Chat started! Type 'exit' or 'quit' to end.\n");

const rl = readline.createInterface({
  input: process.stdin,
  output: process.stdout,
  prompt: "> ",
});

rl.prompt();

rl.on("line", async (userInput: string) => {
  const trimmedInput = userInput.trim();

  if (["exit", "quit", "bye"].includes(trimmedInput.toLowerCase())) {
    console.log("\nGoodbye!");
    rl.close();
    process.exit(0);
  }

  if (!trimmedInput) {
    rl.prompt();
    return;
  }

  messages.push({
    id: crypto.randomUUID(),
    role: "user",
    content: trimmedInput,
  });

  console.log("\nAgent is thinking...\n");

  try {
    const response = await agent.generate(messages, {
      toolsets: {
        zoho_inventory: composioTools,
      },
      maxSteps: 8,
    });

    const { text } = response;

    if (text && text.trim().length > 0) {
      console.log(`Agent: ${text}\n`);
        messages.push({
          id: crypto.randomUUID(),
          role: "assistant",
          content: text,
        });
      }
    } catch (error) {
      console.error("\nError:", error);
    }

    rl.prompt();
  });

  rl.on("close", async () => {
    console.log("\nSession ended.");
    await mcpClient.disconnect();
    process.exit(0);
  });
}

main().catch((err) => {
  console.error("Fatal error:", err);
  process.exit(1);
});
What's happening:
  • messages keeps the full conversation history in Mastra's expected format
  • agent.generate runs the agent with conversation history and Zoho inventory toolsets
  • maxSteps limits how many tool calls the agent can take in a single run
  • onStepFinish is a hook that prints intermediate steps for debugging

Complete Code

Here's the complete code to get you started with Zoho inventory and Mastra AI:

typescript
import "dotenv/config";
import { openai } from "@ai-sdk/openai";
import { Agent } from "@mastra/core/agent";
import { MCPClient } from "@mastra/mcp";
import { Composio } from "@composio/core";
import * as readline from "readline";

import type { AiMessageType } from "@mastra/core/agent";

const openaiAPIKey = process.env.OPENAI_API_KEY;
const composioAPIKey = process.env.COMPOSIO_API_KEY;
const composioUserID = process.env.COMPOSIO_USER_ID;

if (!openaiAPIKey) throw new Error("OPENAI_API_KEY is not set");
if (!composioAPIKey) throw new Error("COMPOSIO_API_KEY is not set");
if (!composioUserID) throw new Error("COMPOSIO_USER_ID is not set");

const composio = new Composio({ apiKey: composioAPIKey as string });

async function main() {
  const session = await composio.create(composioUserID as string, {
    toolkits: ["zoho_inventory"],
  });

  const composioMCPUrl = session.mcp.url;

  const mcpClient = new MCPClient({
    id: composioUserID as string,
    servers: {
      zoho_inventory: {
        url: new URL(composioMCPUrl),
        requestInit: {
          headers: session.mcp.headers,
        },
      },
    },
    timeout: 30_000,
  });

  const composioTools = await mcpClient.getTools();

  const agent = new Agent({
    name: "zoho_inventory-mastra-agent",
    instructions: "You are an AI agent with Zoho inventory tools via Composio.",
    model: "openai/gpt-5",
  });

  let messages: AiMessageType[] = [];

  const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout,
    prompt: "> ",
  });

  rl.prompt();

  rl.on("line", async (input: string) => {
    const trimmed = input.trim();
    if (["exit", "quit"].includes(trimmed.toLowerCase())) {
      rl.close();
      return;
    }

    messages.push({ id: crypto.randomUUID(), role: "user", content: trimmed });

    const { text } = await agent.generate(messages, {
      toolsets: { zoho_inventory: composioTools },
      maxSteps: 8,
    });

    if (text) {
      console.log(`Agent: ${text}\n`);
      messages.push({ id: crypto.randomUUID(), role: "assistant", content: text });
    }

    rl.prompt();
  });

  rl.on("close", async () => {
    await mcpClient.disconnect();
    process.exit(0);
  });
}

main();

Conclusion

You've built a Mastra AI agent that can interact with Zoho inventory through Composio's Tool Router. You can extend this further by:
  • Adding other toolkits like Gmail, Slack, or GitHub
  • Building a web-based chat interface around this agent
  • Using multiple MCP endpoints to enable cross-app workflows
TOOLS

Supported Tools

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

Add Credit Note Comment

Tool to add a comment to a credit note in Zoho Inventory.

Add Invoice Attachment

Tool to upload an attachment to a specific invoice.

Add Invoice Comment

Tool to add a comment to a specific invoice in Zoho Inventory.

Apply Credits To Invoices

Tool to apply credits from a credit note to one or more invoices.

Bulk Delete Sales Orders

Tool to bulk delete sales orders.

Bulk Email Invoices

Sends multiple invoices by email to a contact in a single API call.

Bulk Export Invoices

Tool to bulk export invoices as a single PDF.

Bulk Print Invoices

Generate a consolidated PDF containing multiple invoices for printing or archiving.

Bulk Print Packages

Tool to bulk print package slips as a consolidated PDF.

Cancel Invoice Write Off

Tool to cancel write off for an invoice.

Create Bill

Tool to create a bill in Zoho Inventory.

Create Contact

Tool to create a new contact (customer or vendor) in Zoho Inventory.

Create Contact Person

Tool to create a contact person.

Create Credit Note

Tool to create a new credit note in Zoho Inventory.

Create Customer Payment

Tool to create a customer payment in Zoho Inventory.

Create Invoice

Tool to create a new invoice in Zoho Inventory.

Create Item

Tool to create a new item in Zoho Inventory.

Create Item Group

Tool to create an item group in Zoho Inventory.

Create Package

Tool to create a package for a sales order in Zoho Inventory.

Create Purchase Order

Tool to create a purchase order in Zoho Inventory.

Create Sales Order

Tool to create a sales order in Zoho Inventory.

Deactivate Contact

Tool to mark a contact as inactive in Zoho Inventory.

Deactivate Item

Tool to mark an item as inactive in Zoho Inventory.

Deactivate Item Group

Tool to mark an item group as inactive in Zoho Inventory.

Delete Composite Item

Permanently deletes a composite item from Zoho Inventory.

Delete Contact

Tool to delete a contact.

Delete Contact Person

Tool to delete a contact person.

Delete Invoice

Tool to delete an invoice.

Delete Invoice Attachment

Tool to delete an invoice attachment.

Delete Invoice Comment

Delete a specific comment from an invoice in Zoho Inventory.

Delete Item

Tool to delete an item.

Delete Item Group

Tool to delete an item group.

Delete Item Image

Tool to delete an image associated with an item.

Delete Package

Tool to delete a package.

Delete Sales Order

Tool to delete a sales order.

Disable Payment Reminder

Tool to disable payment reminders for an invoice.

Email Contact

Tool to email a contact in Zoho Inventory.

Email Contact Statement

Tool to email a statement of transactions to a contact.

Email Credit Note

Tool to email a credit note to customers.

Email Invoice

Tool to email a specific invoice to customers.

Enable Invoice Payment Reminder

Tool to enable payment reminders for an invoice.

Get Contact

Tool to retrieve a specific contact by ID from Zoho Inventory.

Get Contact Address

Tool to get contact address.

Get Credit Note

Tool to retrieve a credit note by ID.

Get Credit Note Email Content

Tool to get credit note email content including subject, body, recipients, and available templates.

Get Current User

Tool to get details of the currently authenticated user in Zoho Inventory.

Get Sales Order

Tool to retrieve the details of an existing sales order.

List Bills

Tool to list bills.

List Contacts

Tool to list all contacts (customers and vendors) in Zoho Inventory.

List Credit Notes

Tool to list all credit notes.

List Currencies

Tool to list all currencies configured in Zoho Inventory.

List Invoice Payments

Tool to list all payments received for a specific invoice.

List Invoices

Tool to list all invoices in Zoho Inventory.

List Item Groups

Tool to list all item groups in Zoho Inventory.

List Items

Tool to list all items in Zoho Inventory.

List Organizations

Tool to list all organizations the user has access to in Zoho Inventory.

List Purchase Orders

Tool to list purchase orders.

List Sales Orders

Tool to list sales orders.

FRAMEWORKS

How to build Zoho inventory MCP Agent with another framework

ChatGPT logo

ChatGPT

Use Zoho inventory MCP with ChatGPT

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Zoho inventory MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use Zoho inventory MCP with Claude Agent SDK

Claude Code logo

Claude Code

Use Zoho inventory MCP with Claude Code

Claude Cowork logo

Claude Cowork

Use Zoho inventory MCP with Claude Cowork

Codex logo

Codex

Use Zoho inventory MCP with Codex

Cursor logo

Cursor

Use Zoho inventory MCP with Cursor

OpenClaw logo

OpenClaw

Use Zoho inventory MCP with OpenClaw

Hermes logo

Hermes

Use Zoho inventory MCP with Hermes

CLI logo

CLI

Use Zoho inventory MCP with CLI

Google ADK logo

Google ADK

Use Zoho inventory MCP with Google ADK

LangChain logo

LangChain

Use Zoho inventory MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Zoho inventory MCP with Vercel AI SDK

LlamaIndex logo

LlamaIndex

Use Zoho inventory MCP with LlamaIndex

CrewAI logo

CrewAI

Use Zoho inventory MCP with CrewAI

OpenCode logo

OpenCode

Use Zoho inventory MCP with OpenCode

VS Code logo

VS Code

Use Zoho inventory MCP with VS Code

FAQ

Frequently asked questions

With a standalone Zoho inventory MCP server, the agents and LLMs can only access a fixed set of Zoho inventory tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Zoho inventory and many other apps based on the task at hand, all through a single MCP endpoint.

Yes, you can. Mastra AI fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Zoho inventory tools.

Yes, absolutely. You can configure which Zoho inventory scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Zoho inventory data and credentials are handled as safely as possible.

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Co-founder, Slashy

A lot of students tell us that the moment their connected tools start talking to each other inside Opennote feels almost magical. The agent just knows them, and it's immensely helped keep new users on the platform.

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Before Composio, adding tool integrations was slow and resource-intensive. Each one could take weeks of engineering time, and maintaining them meant constantly keeping up with API changes.

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