How to integrate Netsuite MCP with Codex

Codex is one of the most popular coding harnesses out there. And MCP makes the experience even better. With Netsuite MCP integration, you can draft, triage, summarise emails, and much more, all without leaving the terminal or the app, whichever you prefer.

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NetSuite by Oracle is a cloud-based ERP suite combining accounting, CRM, e-commerce, and inventory management. It streamlines business operations with real-time insights and unified data.

85 Tools

Introduction

Codex is one of the most popular coding harnesses out there. And MCP makes the experience even better. With Netsuite MCP integration, you can draft, triage, summarise emails, and much more, all without leaving the terminal or the app, whichever you prefer.

Also integrate Netsuite with

ChatGPTOpenAI Agents SDKClaude Agent SDKClaude CodeClaude CoworkOpenCodeCursorVS CodeOpenClawHermesCLIGoogle ADKLangChainVercel AI SDKMastra AILlamaIndexCrewAI

Why use Composio?

Apart from a managed and hosted MCP server, you will get:

  • CodeAct: A dedicated workbench that allows GPT to write its code to handle complex tool chaining. Reduces to-and-fro with LLMs for frequent tool calling.
  • Large tool responses: Handle them to minimise context rot.
  • Dynamic just-in-time access to 20,000 tools across 1000+ other Apps for cross-app workflows. It loads the tools you need, so GPTs aren't overwhelmed by tools you don't need.

How to install Netsuite MCP in Codex

Run the setup command

Run this command in your terminal to add the Composio MCP server to Codex.

Terminal

It will initiate the authentication in a browser window, authorize Codex to access your Composio account.

Composio authentication page

(Optional) Authenticate with OAuth

To authenticate manually, run the login command to open a browser window and authorize Codex to access your Composio account.

bash
codex mcp login composio

Verify the connection

Run codex mcp list to confirm Composio appears as a registered MCP server.

bash
codex mcp list

Codex App

Codex App follows the same approach as VS Code.

  1. Click ⚙️ on the bottom left → MCP Servers → + Add servers → Streamable HTTP:
  2. Fill the header and Key fields with { "x-consumer-api-key" = "ck_*******" }.
  3. The Key is the Composio API key, that you can find on dashboard.composio.dev
  4. Click on Authenticate and authorize Codex to your Composio account and you're all set.
Codex App MCP setup
  1. Restart and verify if it's there in .codex/config.toml
bash
[mcp_servers.composio]
url = "https://connect.composio.dev/mcp"
http_headers = { "x-consumer-api-key" = "ck_*******" }

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.

Conclusion

You've successfully integrated Netsuite with Codex using Composio's MCP server. Now you can interact with Netsuite directly from your terminal, VS Code, or the Codex App using natural language commands.

Key benefits of this setup:

  • Seamless integration across CLI, VS Code, and standalone app
  • Natural language commands for Netsuite operations
  • Managed authentication through Composio
  • Access to 20,000+ tools across 1000+ apps for cross-app workflows
  • CodeAct workbench for complex tool chaining

Next steps:

  • Try asking Codex to perform various Netsuite operations
  • Explore cross-app workflows by connecting more toolkits
  • Build automation scripts that leverage Codex's AI capabilities
TOOLS

Supported Tools

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

Get Async Job Status

Retrieves the current status of an asynchronous NetSuite REST job.

Get Async Job Task

Retrieves the task reference (task ID and URL) for an asynchronous job in NetSuite.

Async Get Job Task Result

Tool to retrieve the payload result of a completed async task.

Create Customer

Creates a new customer record in NetSuite.

Create Customer Payment

Creates a customer payment record in NetSuite.

Create Employee

Creates a new employee record in NetSuite.

Create Invoice

Tool to create a new invoice record.

Create Item

Creates a new item record in NetSuite via REST API.

Create Journal Entry

Tool to create a new journal entry record.

Create JWT Client Assertion

Tool to build a JWT client assertion for NetSuite OAuth2 client credentials.

Create Purchase Order

Tool to create a new purchase order record.

Create Record

Creates a new NetSuite record of any type (customer, vendor, invoice, sales order, etc.

Create Sales Order

Tool to create a new sales order record in NetSuite.

Create Vendor

Creates a new vendor record in NetSuite.

Create Vendor Bill

Tool to create a new vendor bill record.

Delete Customer

Tool to delete a customer record by ID.

Delete Customer Payment

Delete a customer payment record from NetSuite by its ID.

Delete Employee

Deletes an employee record from NetSuite by its internal ID.

Delete Invoice

Tool to delete an invoice record by ID.

Delete Item

Tool to delete an item record by its type and ID.

Delete Item Fulfillment

Tool to delete an Item Fulfillment record.

Delete Item Receipt

Tool to delete an item receipt record by ID.

Delete Journal Entry

Tool to delete a journal entry record by ID.

Delete Purchase Order

Tool to delete a purchase order record by ID.

Delete Sales Order

Tool to delete a sales order by internal ID.

Delete Vendor Payment

Tool to delete a vendor payment record by ID.

Execute Dataset

Tool to execute a SuiteAnalytics dataset and return paged results.

Get Customer

Tool to retrieve a customer record by internal ID.

Get Customer Payment

Tool to retrieve a customer payment record by ID.

Get Data Center URLs

Tool to discover account-specific service domains.

Get Employee

Tool to retrieve an employee record by ID.

Get Governance Limits

Retrieve NetSuite account and integration concurrency governance limits.

Get Invoice

Tool to retrieve an invoice record by internal ID.

Get Item

Tool to retrieve an item record by internal ID.

Get Item Fulfillment

Tool to retrieve an item fulfillment record by internal ID.

Get Item Receipt

Tool to retrieve an item receipt record by internal ID.

Get Journal Entry

Tool to retrieve a journal entry by internal ID.

Get Purchase Order

Retrieves complete details of a purchase order by its internal ID using the NetSuite REST API.

Get Record Metadata

Retrieves the complete metadata schema for a NetSuite record type, including all field definitions, data types, constraints, and descriptions.

Get Reference Select Field

Retrieves the complete record referenced by a select-type field on a parent record.

Get Sales Order

Tool to retrieve a sales order record by internal ID.

Get Server Time

Tool to retrieve NetSuite server time in UTC.

Get Sublist Collection

Tool to retrieve a sublist collection from a parent record.

Get Sublist Line

Tool to retrieve a specific line from a sublist of a record.

Get Subrecord

Retrieves a specific subrecord from a parent NetSuite record.

Get Vendor

Tool to get a single vendor record by internal ID.

Get Vendor Bill

Retrieve a vendor bill record by its internal ID.

Get Vendor Payment

Retrieves a single vendor payment record by its internal ID from NetSuite.

List Customer Payments

Tool to list customer payment records.

List Datasets

Tool to list SuiteAnalytics Workbook datasets.

List Employees

Tool to list employee records.

List Integrations

Tool to list integration applications.

List Invoices

Tool to list invoice records.

List Item Fulfillments

Tool to list item fulfillment records.

List Item Receipts

Tool to list item receipt records.

List Journal Entries

Tool to list journal entry records.

List Metadata Catalog

Tool to list all record types and their metadata.

List Purchase Orders

Tool to list purchase order records.

List Records

Tool to list record instances.

List Sales Orders

Tool to list sales order records.

List Vendor Payments

Tool to list vendor payment records.

OAuth2 Authorize Account Domain

Tool to construct an OAuth2 authorization URL for a NetSuite account-specific domain.

OAuth2 Authorize System Domain

Initiates the OAuth2 authorization code flow using NetSuite's system domain endpoint.

Get OAuth2 JWKS Keys

Tool to retrieve OAuth2 JWKS public keys.

OAuth2 Logout

Tool to revoke an ID token and its associated access and refresh tokens.

Revoke OAuth2 Refresh Token

Revokes a NetSuite OAuth2 refresh token and all associated access tokens, immediately invalidating them.

Exchange OAuth2 Authorization Code for Tokens

Exchange an OAuth2 authorization code for access and refresh tokens using the NetSuite token endpoint.

OAuth2 Token Client Credentials

Tool to obtain an OAuth2 access token via client credentials grant.

OAuth2 Token Refresh

Tool to refresh an OAuth2 access token.

Run SuiteQL Query

Tool to execute a SuiteQL query.

Transform Record

Transform an existing NetSuite record into another record type (e.

Update Customer

Updates an existing NetSuite customer record using PATCH semantics - only fields included in the 'data' parameter are modified.

Update Customer Payment

Tool to update an existing customer payment by ID.

Update Employee

Tool to update an employee record by ID.

Update Invoice

Updates an existing NetSuite invoice record by ID using the PATCH method.

Update Item

Tool to update an item record by ID.

Update Item Fulfillment

Tool to update an Item Fulfillment record by ID.

Update Item Receipt

Tool to update an item receipt record by ID.

Update Journal Entry

Tool to update a journal entry record by ID.

Update Purchase Order

Tool to update a purchase order record by ID.

Update Sales Order

Updates an existing NetSuite sales order record by ID using PATCH semantics.

Update Vendor

Tool to update a vendor record by ID.

Update Vendor Bill

Tool to update a vendor bill record by ID.

Update Vendor Payment

Tool to update a vendor payment record by ID.

Upsert Record by External ID

Tool to create or update a record by external ID.

FRAMEWORKS

How to build Netsuite MCP Agent with another framework

ChatGPT logo

ChatGPT

Use Netsuite MCP with ChatGPT

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Netsuite MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use Netsuite MCP with Claude Agent SDK

Claude Code logo

Claude Code

Use Netsuite MCP with Claude Code

Claude Cowork logo

Claude Cowork

Use Netsuite MCP with Claude Cowork

Cursor logo

Cursor

Use Netsuite MCP with Cursor

OpenClaw logo

OpenClaw

Use Netsuite MCP with OpenClaw

Hermes logo

Hermes

Use Netsuite MCP with Hermes

CLI logo

CLI

Use Netsuite MCP with CLI

Google ADK logo

Google ADK

Use Netsuite MCP with Google ADK

LangChain logo

LangChain

Use Netsuite MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Netsuite MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Netsuite MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Netsuite MCP with LlamaIndex

CrewAI logo

CrewAI

Use Netsuite MCP with CrewAI

OpenCode logo

OpenCode

Use Netsuite MCP with OpenCode

VS Code logo

VS Code

Use Netsuite MCP with VS Code

FAQ

Frequently asked questions

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.

Yes, you can. Codex 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.

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.

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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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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As a solo builder, shipping fast is life or death. The only way I can outcompete incumbents is by outmanoeuvring them. Getting bogged down managing agent auth would have been a death sentence.

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Founder, Extra Thursday

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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Co-Founder, Ingram Technologies