How to integrate Netsuite MCP with Google ADK

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Introduction

This guide walks you through connecting Netsuite to Google ADK using the Composio tool router. By the end, you'll have a working Netsuite agent that can generate monthly profit and loss report, list overdue invoices for all customers, create new sales order for a client through natural language commands.

This guide will help you understand how to give your Google ADK agent real control over a Netsuite account through Composio's Netsuite MCP server.

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

Also integrate Netsuite with

TL;DR

Here's what you'll learn:
  • Get a Netsuite account set up and connected to Composio
  • Install the Google ADK and Composio packages
  • Create a Composio Tool Router session for Netsuite
  • Build an agent that connects to Netsuite through MCP
  • Interact with Netsuite using natural language

What is Google ADK?

Google ADK (Agents Development Kit) is Google's framework for building AI agents powered by Gemini models. It provides tools for creating agents that can use external services through the Model Context Protocol.

Key features include:

  • Gemini Integration: Native support for Google's Gemini models
  • MCP Toolset: Built-in support for Model Context Protocol tools
  • Streamable HTTP: Connect to external services through streamable HTTP
  • CLI and Web UI: Run agents via command line or web interface

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

The Netsuite MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Netsuite account. It provides structured and secure access to your business data, so your agent can perform actions like creating invoices, managing inventory, tracking customer records, and automating financial workflows on your behalf.

  • Automated invoice creation and management: Let your agent generate, send, and update invoices for customers, streamlining your accounts receivable process.
  • Real-time inventory control: Ask your agent to check stock levels, update inventory records, and manage supply chain transactions seamlessly.
  • Customer and vendor record management: Have the agent create, update, or retrieve customer and vendor profiles, keeping your CRM data fresh and accurate.
  • Financial reporting and analytics: Direct your agent to pull balance sheets, profit & loss statements, or transaction histories for up-to-date business insights.
  • Order processing automation: Enable your agent to create sales orders, manage purchase orders, and track fulfillment status across your operations.

Supported Tools & Triggers

Tools
Get Async Job StatusRetrieves the current status of an asynchronous NetSuite REST job.
Get Async Job TaskRetrieves the task reference (task ID and URL) for an asynchronous job in NetSuite.
Async Get Job Task ResultTool to retrieve the payload result of a completed async task.
Create CustomerCreates a new customer record in NetSuite.
Create Customer PaymentCreates a customer payment record in NetSuite.
Create EmployeeCreates a new employee record in NetSuite.
Create InvoiceTool to create a new invoice record.
Create ItemCreates a new item record in NetSuite via REST API.
Create Journal EntryTool to create a new journal entry record.
Create JWT Client AssertionTool to build a JWT client assertion for NetSuite OAuth2 client credentials.
Create Purchase OrderTool to create a new purchase order record.
Create RecordCreates a new NetSuite record of any type (customer, vendor, invoice, sales order, etc.
Create Sales OrderTool to create a new sales order record in NetSuite.
Create VendorCreates a new vendor record in NetSuite.
Create Vendor BillTool to create a new vendor bill record.
Delete CustomerTool to delete a customer record by ID.
Delete Customer PaymentDelete a customer payment record from NetSuite by its ID.
Delete EmployeeDeletes an employee record from NetSuite by its internal ID.
Delete InvoiceTool to delete an invoice record by ID.
Delete ItemTool to delete an item record by its type and ID.
Delete Item FulfillmentTool to delete an Item Fulfillment record.
Delete Item ReceiptTool to delete an item receipt record by ID.
Delete Journal EntryTool to delete a journal entry record by ID.
Delete Purchase OrderTool to delete a purchase order record by ID.
Delete Sales OrderTool to delete a sales order by internal ID.
Delete Vendor PaymentTool to delete a vendor payment record by ID.
Execute DatasetTool to execute a SuiteAnalytics dataset and return paged results.
Get CustomerTool to retrieve a customer record by internal ID.
Get Customer PaymentTool to retrieve a customer payment record by ID.
Get Data Center URLsTool to discover account-specific service domains.
Get EmployeeTool to retrieve an employee record by ID.
Get Governance LimitsRetrieve NetSuite account and integration concurrency governance limits.
Get InvoiceTool to retrieve an invoice record by internal ID.
Get ItemTool to retrieve an item record by internal ID.
Get Item FulfillmentTool to retrieve an item fulfillment record by internal ID.
Get Item ReceiptTool to retrieve an item receipt record by internal ID.
Get Journal EntryTool to retrieve a journal entry by internal ID.
Get Purchase OrderRetrieves complete details of a purchase order by its internal ID using the NetSuite REST API.
Get Record MetadataRetrieves the complete metadata schema for a NetSuite record type, including all field definitions, data types, constraints, and descriptions.
Get Reference Select FieldRetrieves the complete record referenced by a select-type field on a parent record.
Get Sales OrderTool to retrieve a sales order record by internal ID.
Get Server TimeTool to retrieve NetSuite server time in UTC.
Get Sublist CollectionTool to retrieve a sublist collection from a parent record.
Get Sublist LineTool to retrieve a specific line from a sublist of a record.
Get SubrecordRetrieves a specific subrecord from a parent NetSuite record.
Get VendorTool to get a single vendor record by internal ID.
Get Vendor BillRetrieve a vendor bill record by its internal ID.
Get Vendor PaymentRetrieves a single vendor payment record by its internal ID from NetSuite.
List Customer PaymentsTool to list customer payment records.
List DatasetsTool to list SuiteAnalytics Workbook datasets.
List EmployeesTool to list employee records.
List IntegrationsTool to list integration applications.
List InvoicesTool to list invoice records.
List Item FulfillmentsTool to list item fulfillment records.
List Item ReceiptsTool to list item receipt records.
List Journal EntriesTool to list journal entry records.
List Metadata CatalogTool to list all record types and their metadata.
List Purchase OrdersTool to list purchase order records.
List RecordsTool to list record instances.
List Sales OrdersTool to list sales order records.
List Vendor PaymentsTool to list vendor payment records.
OAuth2 Authorize Account DomainTool to construct an OAuth2 authorization URL for a NetSuite account-specific domain.
OAuth2 Authorize System DomainInitiates the OAuth2 authorization code flow using NetSuite's system domain endpoint.
Get OAuth2 JWKS KeysTool to retrieve OAuth2 JWKS public keys.
OAuth2 LogoutTool to revoke an ID token and its associated access and refresh tokens.
Revoke OAuth2 Refresh TokenRevokes a NetSuite OAuth2 refresh token and all associated access tokens, immediately invalidating them.
Exchange OAuth2 Authorization Code for TokensExchange an OAuth2 authorization code for access and refresh tokens using the NetSuite token endpoint.
OAuth2 Token Client CredentialsTool to obtain an OAuth2 access token via client credentials grant.
OAuth2 Token RefreshTool to refresh an OAuth2 access token.
Run SuiteQL QueryTool to execute a SuiteQL query.
Transform RecordTransform an existing NetSuite record into another record type (e.
Update CustomerUpdates an existing NetSuite customer record using PATCH semantics - only fields included in the 'data' parameter are modified.
Update Customer PaymentTool to update an existing customer payment by ID.
Update EmployeeTool to update an employee record by ID.
Update InvoiceUpdates an existing NetSuite invoice record by ID using the PATCH method.
Update ItemTool to update an item record by ID.
Update Item FulfillmentTool to update an Item Fulfillment record by ID.
Update Item ReceiptTool to update an item receipt record by ID.
Update Journal EntryTool to update a journal entry record by ID.
Update Purchase OrderTool to update a purchase order record by ID.
Update Sales OrderUpdates an existing NetSuite sales order record by ID using PATCH semantics.
Update VendorTool to update a vendor record by ID.
Update Vendor BillTool to update a vendor bill record by ID.
Update Vendor PaymentTool to update a vendor payment record by ID.
Upsert Record by External IDTool to create or update a record by external ID.

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

Prerequisites

Before starting, make sure you have:
  • A Google API key for Gemini models
  • A Composio account and API key
  • Python 3.9 or later installed
  • Basic familiarity with Python

Getting API Keys for Google and Composio

Google API Key
  • Go to Google AI Studio and create an API key.
  • Copy the key and keep it safe. You will put this in GOOGLE_API_KEY.
Composio API Key and User ID
  • Log in to the Composio dashboard.
  • Go to Settings → API Keys and copy your Composio API key. Use this for COMPOSIO_API_KEY.
  • Decide on a stable user identifier to scope sessions, often your email or a user ID. Use this for COMPOSIO_USER_ID.

Install dependencies

bash
pip install google-adk composio python-dotenv

Inside your virtual environment, install the required packages.

What's happening:

  • google-adk is Google's Agents Development Kit
  • composio connects your agent to Netsuite via MCP
  • python-dotenv loads environment variables

Set up ADK project

bash
adk create my_agent

Set up a new Google ADK project.

What's happening:

  • This creates an agent folder with a root agent file and .env file

Set environment variables

bash
GOOGLE_API_KEY=your-google-api-key
COMPOSIO_API_KEY=your-composio-api-key
COMPOSIO_USER_ID=your-user-id-or-email

Save all your credentials in the .env file.

What's happening:

  • GOOGLE_API_KEY authenticates with Google's Gemini models
  • COMPOSIO_API_KEY authenticates with Composio
  • COMPOSIO_USER_ID identifies the user for session management

Import modules and validate environment

python
import os
import warnings

from composio import Composio
from dotenv import load_dotenv
from google.adk.agents.llm_agent import Agent
from google.adk.tools.mcp_tool.mcp_session_manager import StreamableHTTPConnectionParams
from google.adk.tools.mcp_tool.mcp_toolset import McpToolset

load_dotenv()

warnings.filterwarnings("ignore", message=".*BaseAuthenticatedTool.*")

GOOGLE_API_KEY = os.getenv("GOOGLE_API_KEY")
COMPOSIO_API_KEY = os.getenv("COMPOSIO_API_KEY")
COMPOSIO_USER_ID = os.getenv("COMPOSIO_USER_ID")

if not GOOGLE_API_KEY:
    raise ValueError("GOOGLE_API_KEY is not set in the environment.")
if not COMPOSIO_API_KEY:
    raise ValueError("COMPOSIO_API_KEY is not set in the environment.")
if not COMPOSIO_USER_ID:
    raise ValueError("COMPOSIO_USER_ID is not set in the environment.")
What's happening:
  • os reads environment variables
  • Composio is the main Composio SDK client
  • GoogleProvider declares that you are using Google ADK as the agent runtime
  • Agent is the Google ADK LLM agent class
  • McpToolset lets the ADK agent call MCP tools over HTTP

Create Composio client and Tool Router session

python
composio_client = Composio(api_key=COMPOSIO_API_KEY)

composio_session = composio_client.create(
    user_id=COMPOSIO_USER_ID,
    toolkits=["netsuite"],
)

COMPOSIO_MCP_URL = composio_session.mcp.url,
print(f"Composio MCP URL: {COMPOSIO_MCP_URL}")
What's happening:
  • Authenticates to Composio with your API key
  • Declares Google ADK as the provider
  • Spins up a short-lived MCP endpoint for your user and selected toolkit
  • Stores the MCP HTTP URL for the ADK MCP integration

Set up the McpToolset and create the Agent

python
composio_toolset = McpToolset(
    connection_params=StreamableHTTPConnectionParams(
        url=COMPOSIO_MCP_URL,
        headers={"x-api-key": COMPOSIO_API_KEY}
    )
)

root_agent = Agent(
    model="gemini-2.5-flash",
    name="composio_agent",
    description="An agent that uses Composio tools to perform actions.",
    instruction=(
        "You are a helpful assistant connected to Composio. "
        "You have the following tools available: "
        "COMPOSIO_SEARCH_TOOLS, COMPOSIO_MULTI_EXECUTE_TOOL, "
        "COMPOSIO_MANAGE_CONNECTIONS, COMPOSIO_REMOTE_BASH_TOOL, COMPOSIO_REMOTE_WORKBENCH. "
        "Use these tools to help users with Netsuite operations."
    ),
    tools=[composio_toolset],
)

print("\nAgent setup complete. You can now run this agent directly ;)")
What's happening:
  • Connects the ADK agent to the Composio MCP endpoint through McpToolset
  • Uses Gemini as the model powering the agent
  • Lists exact tool names in instruction to reduce misnamed tool calls

Run the agent

bash
# Run in CLI mode
adk run my_agent

# Or run in web UI mode
adk web

Execute the agent from the project root. The web command opens a web portal where you can chat with the agent.

What's happening:

  • adk run runs the agent in CLI mode
  • adk web . opens a web UI for interactive testing

Complete Code

Here's the complete code to get you started with Netsuite and Google ADK:

python
import os
import warnings

from composio import Composio
from composio_google import GoogleProvider
from dotenv import load_dotenv
from google.adk.agents.llm_agent import Agent
from google.adk.tools.mcp_tool.mcp_session_manager import StreamableHTTPConnectionParams
from google.adk.tools.mcp_tool.mcp_toolset import McpToolset

load_dotenv()
warnings.filterwarnings("ignore", message=".*BaseAuthenticatedTool.*")

GOOGLE_API_KEY = os.getenv("GOOGLE_API_KEY")
COMPOSIO_API_KEY = os.getenv("COMPOSIO_API_KEY")
COMPOSIO_USER_ID = os.getenv("COMPOSIO_USER_ID")

if not GOOGLE_API_KEY:
    raise ValueError("GOOGLE_API_KEY is not set in the environment.")
if not COMPOSIO_API_KEY:
    raise ValueError("COMPOSIO_API_KEY is not set in the environment.")
if not COMPOSIO_USER_ID:
    raise ValueError("COMPOSIO_USER_ID is not set in the environment.")

composio_client = Composio(api_key=COMPOSIO_API_KEY, provider=GoogleProvider())

composio_session = composio_client.create(
    user_id=COMPOSIO_USER_ID,
    toolkits=["netsuite"],
)

COMPOSIO_MCP_URL = composio_session.mcp.url


composio_toolset = McpToolset(
    connection_params=StreamableHTTPConnectionParams(
        url=COMPOSIO_MCP_URL,
        headers={"x-api-key": COMPOSIO_API_KEY}
    )
)

root_agent = Agent(
    model="gemini-2.5-flash",
    name="composio_agent",
    description="An agent that uses Composio tools to perform actions.",
    instruction=(
        "You are a helpful assistant connected to Composio. "
        "You have the following tools available: "
        "COMPOSIO_SEARCH_TOOLS, COMPOSIO_MULTI_EXECUTE_TOOL, "
        "COMPOSIO_MANAGE_CONNECTIONS, COMPOSIO_REMOTE_BASH_TOOL, COMPOSIO_REMOTE_WORKBENCH. "
        "Use these tools to help users with Netsuite operations."
    ),  
    tools=[composio_toolset],
)

print("\nAgent setup complete. You can now run this agent directly ;)")

Conclusion

You've successfully integrated Netsuite with the Google ADK through Composio's MCP Tool Router. Your agent can now interact with Netsuite using natural language commands.

Key takeaways:

  • The Tool Router approach dynamically routes requests to the appropriate Netsuite tools
  • Environment variables keep your credentials secure and separate from code
  • Clear agent instructions reduce tool calling errors
  • The ADK web UI provides an interactive interface for testing and development

You can extend this setup by adding more toolkits to the toolkits array in your session configuration.

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FAQ

What are the differences in Tool Router MCP and Netsuite MCP?

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

Can I use Tool Router MCP with Google ADK?

Yes, you can. Google ADK 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 Netsuite tools.

Can I manage the permissions and scopes for Netsuite while using Tool Router?

Yes, absolutely. You can configure which Netsuite 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.

How safe is my data with Composio Tool Router?

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 Netsuite data and credentials are handled as safely as possible.

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