How to integrate Erpnext MCP with Claude Code

Manage your Erpnext directly from Claude Code with zero worries about OAuth hassles, API-breaking issues, or reliability and security concerns. You can do this in two different ways: Via Composio Connect - Direct and easiest approach Via Composio SDK - Programmatic approach with more control

Erpnext logoErpnext
Api Key

Erpnext is a free, open-source ERP platform built on the Frappe Framework. It streamlines business operations by integrating accounting, inventory, HR, and more in one place.

52 Tools

Introduction

Manage your Erpnext directly from Claude Code with zero worries about OAuth hassles, API-breaking issues, or reliability and security concerns.

You can do this in two different ways:

  1. Via Composio Connect - Direct and easiest approach
  2. Via Composio SDK - Programmatic approach with more control

Also integrate Erpnext with

Why use Composio?

  • Only one MCP URL to connect multiple apps with Claude Code with zero auth hassles.
  • Programmatic tool calling allows LLMs to write its code in a remote workbench to handle complex tool chaining. Reduces to-and-fro with LLMs for frequent tool calling.
  • Handling Large tool responses out of LLM context to minimize 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 LLMs aren't overwhelmed by tools you don't need.

Connecting Erpnext to Claude Code using Composio

1. Add the Composio MCP to Claude

Terminal

2. Start Claude Code

bash
claude

3. Open your MCP list

bash
/mcp

4. Select Composio and click on Authenticate

Select Composio and click Authenticate

5. This will redirect you to the Composio OAuth page. Complete the flow by authorizing Composio and you're all set.

Composio OAuth authorization page
Composio authorization complete
Ask Claude to connect to your account and authenticate via the link

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

The Erpnext MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Erpnext account. It provides structured and secure access so your agent can perform Erpnext operations on your behalf.

Connecting Erpnext via Composio SDK

Composio SDK is the underlying tech that powers Rube. It's a universal gateway that does everything Rube does but with much more programmatic control. You can programmatically generate an MCP URL with the app you need (here Erpnext) for even more tool search precision. It's secure and reliable.

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 step10 STEPS
1

Prerequisites

Before starting, make sure you have:
  • Claude Pro, Max, or API billing enabled Anthropic account
  • Composio API Key
  • A Erpnext account
  • Basic knowledge of Python or TypeScript
2

Install Claude Code

bash
# macOS, Linux, WSL
curl -fsSL https://claude.ai/install.sh | bash

# Windows PowerShell
irm https://claude.ai/install.ps1 | iex

# Windows CMD
curl -fsSL https://claude.ai/install.cmd -o install.cmd && install.cmd && del install.cmd

To install Claude Code, use one of the following methods based on your operating system:

3

Set up Claude Code

bash
cd your-project-folder
claude

Open a terminal, go to your project folder, and start Claude Code:

  • Claude Code will open in your terminal
  • Follow the prompts to sign in with your Anthropic account
  • Complete the authentication flow
  • Once authenticated, you can start using Claude Code
Claude Code initial setup showing sign-in prompt
Claude Code terminal after successful login
4

Set up environment variables

bash
COMPOSIO_API_KEY=your_composio_api_key_here
USER_ID=your_user_id_here

Create a .env file in your project root with the following variables:

  • COMPOSIO_API_KEY authenticates with Composio (get it from Composio dashboard)
  • USER_ID identifies the user for session management (use any unique identifier)
5

Install Composio library

npm install @composio/core dotenv

Install the Composio TypeScript library to create MCP sessions.

  • @composio/core provides the core Composio functionality
  • dotenv loads environment variables from your .env file
6

Generate Composio MCP URL

import 'dotenv/config';
import { Composio } from '@composio/core';

const { COMPOSIO_API_KEY, USER_ID } = process.env;

if (!COMPOSIO_API_KEY || !USER_ID) {
  throw new Error('COMPOSIO_API_KEY and USER_ID required in .env');
}

const composioClient = new Composio({ apiKey: COMPOSIO_API_KEY });

const composioSession = await composioClient.create(USER_ID, {
  toolkits: ['erpnext'],
});

const composioMcpUrl = composioSession?.mcp.url;

console.log(`MCP URL: ${composioMcpUrl}`);
console.log(`\nUse this command to add to Claude Code:`);
console.log(`claude mcp add --transport http erpnext-composio "${composioMcpUrl}" --headers "X-API-Key:${COMPOSIO_API_KEY}"`);

Create a script to generate a Composio MCP URL for Erpnext. This URL will be used to connect Claude Code to Erpnext.

What's happening

  • We import the Composio client and load environment variables
  • Create a Composio instance with your API key
  • Call create() to create a Tool Router session for Erpnext
  • The returned mcp.url is the MCP server URL that Claude Code will use
  • The script prints this URL so you can copy it
7

Run the script and copy the MCP URL

node --loader ts-node/esm generate_mcp_url.ts
# or if using tsx
tsx generate_mcp_url.ts

Run your TypeScript script to generate the MCP URL.

  • The script connects to Composio and creates a Tool Router session
  • It prints the MCP URL and the exact command you need to run
  • Copy the entire claude mcp add command from the output
8

Add Erpnext MCP to Claude Code

bash
claude mcp add --transport http erpnext-composio "YOUR_MCP_URL_HERE" --headers "X-API-Key:YOUR_COMPOSIO_API_KEY"

# Then restart Claude Code
exit
claude

In your terminal, add the MCP server using the command from the previous step. The command format is:

  • claude mcp add registers a new MCP server with Claude Code
  • --transport http specifies that this is an HTTP-based MCP server
  • The server name (erpnext-composio) is how you'll reference it
  • The URL points to your Composio Tool Router session
  • --headers includes your Composio API key for authentication

After running the command, close the current Claude Code session and start a new one for the changes to take effect.

9

Verify the installation

bash
claude mcp list

Check that your Erpnext MCP server is properly configured.

  • This command lists all MCP servers registered with Claude Code
  • You should see your erpnext-composio entry in the list
  • This confirms that Claude Code can now access Erpnext tools

If everything is wired up, you should see your erpnext-composio entry listed:

Claude Code MCP list showing the toolkit MCP server
10

Authenticate Erpnext

The first time you try to use Erpnext tools, you'll be prompted to authenticate.

  • Claude Code will detect that you need to authenticate with Erpnext
  • It will show you an authentication link
  • Open the link in your browser (or copy/paste it)
  • Complete the Erpnext authorization flow
  • Return to the terminal and start using Erpnext through Claude Code

Once authenticated, you can ask Claude Code to perform Erpnext operations in natural language. For example:

  • "List overdue tasks for all projects"
  • "Create a new customer record"
  • "Get all open purchase orders"

Complete Code

Here's the complete code to get you started with Erpnext and Claude Code:

import 'dotenv/config';
import { Composio } from '@composio/core';

const { COMPOSIO_API_KEY, USER_ID } = process.env;

if (!COMPOSIO_API_KEY || !USER_ID) {
  throw new Error('COMPOSIO_API_KEY and USER_ID required in .env');
}

const composioClient = new Composio({ apiKey: COMPOSIO_API_KEY });

const composioSession = await composioClient.create(USER_ID, {
  toolkits: ['erpnext'],
});

const composioMcpUrl = composioSession?.mcp.url;

console.log(`MCP URL: ${composioMcpUrl}`);
console.log(`\nUse this command to add to Claude Code:`);
console.log(`claude mcp add --transport http erpnext-composio "${composioMcpUrl}" --headers "X-API-Key:${COMPOSIO_API_KEY}"`);

Conclusion

You've successfully integrated Erpnext with Claude Code using Composio's MCP server. Now you can interact with Erpnext directly from your terminal using natural language commands.

Key features of this setup:

  • Terminal-native experience without switching contexts
  • Natural language commands for Erpnext operations
  • Secure authentication through Composio's managed MCP
  • Tool Router for dynamic tool discovery and execution

Next steps:

  • Try asking Claude Code to perform various Erpnext operations
  • Add more toolkits to your Tool Router session for multi-app workflows
  • Integrate this setup into your development workflow for increased productivity

You can extend this by adding more toolkits, implementing custom workflows, or building automation scripts that leverage Claude Code's capabilities.

TOOLS

Supported Tools

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

Add Comment

Tool to add a comment to a document in ERPNext/Frappe.

Add Tag

Tool to add a tag to a document in ERPNext.

Apply Workflow

Tool to apply a workflow action to a document in ERPNext/Frappe.

Cancel Document

Cancel a submitted document in ERPNext/Frappe to change its status from Submitted to Cancelled.

Create Document

Tool to create a new document of a specific DocType in ERPNext.

Create Timesheet

Tool to create a new Timesheet record in ERPNext.

Create Webhook

Tool to create a new webhook configuration in ERPNext.

Delete Document

Tool to delete a document using the Frappe client API.

Delete Document

Tool to delete a specific document by DocType and name.

Download file from ERPNext

Tool to download a file from ERPNext by its URL.

Download PDF Document

Tool to download a document as PDF from ERPNext with optional print format.

Get All Languages

Tool to get a list of all available languages in the ERPNext/Frappe system.

Get All Roles

Tool to get a list of all roles available in the ERPNext system.

Get Document

Tool to get a single document by DocType and name or filters from Frappe/ERPNext.

Get Document Count

Tool to get the count of documents matching specified filters in ERPNext/Frappe.

Get DocType Metadata

Tool to retrieve complete DocType metadata/schema including field definitions, field types, permissions, and configurations.

Get Document

Tool to retrieve a specific document by its DocType and name (ID).

Get Document with Metadata

Tool to retrieve a document with full metadata including attachments, comments, activity logs, and related information.

Get Exchange Rate

Tool to get the currency exchange rate between two currencies in ERPNext.

Get Fiscal Year

Tool to get fiscal year information for a given date in ERPNext.

Get Framework Version

Tool to get the Frappe framework version and all installed app versions.

Get Item Details

Tool to get detailed item information including pricing, taxes, and stock details from ERPNext.

Get List of Documents

Tool to retrieve a list of documents from ERPNext/Frappe with filtering, field selection, and pagination.

Get Logged User

Tool to get the email/ID of the currently authenticated user.

Get Party Details

Tool to get comprehensive customer or supplier details including addresses, contacts, and default financial settings.

Get Payment Entry

Tool to get payment entry details for an invoice or order from ERPNext.

Get Stock Balance

Tool to retrieve the current stock balance for a specific item in a warehouse.

Get Timezones

Tool to get a list of all available timezones in the ERPNext system.

Get User Roles

Tool to get roles assigned to a user.

Get Field Value

Tool to get specific field value(s) from a document in ERPNext.

Get Workflow Transitions

Tool to get available workflow transitions for a document.

Insert Document

Tool to insert a new document in ERPNext/Frappe using the client API.

Insert Multiple Documents

Tool to insert multiple documents at once into ERPNext/Frappe.

List DocTypes

Tool to get a list of all DocTypes available in the ERPNext system.

List ERPNext Documents

Tool to list documents of a specific DocType from ERPNext.

List Employees

Tool to retrieve a list of Employee records from ERPNext.

List Projects

Tool to retrieve a list of Project records from ERPNext.

List Timesheets

Tool to get a list of Timesheet records from ERPNext.

List Webhooks

Tool to list webhook configurations in ERPNext.

Make Delivery Note

Create a draft Delivery Note from an existing Sales Order in ERPNext.

Make Purchase Order

Create a draft Purchase Order from an existing Material Request in ERPNext.

Make Sales Invoice

Tool to create a Sales Invoice from an existing Sales Order in ERPNext.

Make Stock Entry

Tool to create a Stock Entry for material transfer, receipt, or issue in ERPNext.

Ping API

Tool to check if the ERPNext/Frappe API is reachable.

Rename Document

Tool to rename an ERPNext document by changing its unique ID/name.

Save Document with Action

Tool to save, submit, cancel, or update a document in ERPNext.

Save Document

Tool to save an existing ERPNext/Frappe document with changes.

Global Search

Tool to perform global text search across ERPNext documents.

Search Link Field Documents

Tool to search for documents to link in ERPNext/Frappe Link fields.

Set Value

Tool to set a specific field value on a document in ERPNext.

Submit Document

Submit a draft document in ERPNext/Frappe to change its status from Draft to Submitted.

Update ERPNext document

Tool to update a specific ERPNext document.

FAQ

Frequently asked questions

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

Yes, you can. Claude Code 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 Erpnext tools.

Yes, absolutely. You can configure which Erpnext 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 Erpnext data and credentials are handled as safely as possible.

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