How do I get Erply API credentials?

You need your **Client Code** (found in your Erply account URL) and a **Session Token**. You can generate a Session Token by making a login request to the Erply API using your credentials. Please refer to the Erply API documentation for details on generating long-lived tokens.

Is the inventory data real-time?

Yes, you can use the list_inventory_stock_levels tool to retrieve current available and reserved counts directly from the Erply database.

Can the agent process new sales in the POS?

This integration currently focuses on listing and auditing products, sales documents, and inventory. Processing live transactions should be performed via the Erply POS interface or dedicated hardware.

Erply ERP & POS MCP Server for LangChain 10 tools — connect in under 2 minutes

Name: Erply ERP & POS
Availability: InStock
Author: Vinkius

python.langchain.com/docs/integrations/tools/mcp

Built by Vinkius GDPR 10 Tools Framework

LangChain is the leading Python framework for composable LLM applications. Connect Erply ERP & POS through Vinkius and LangChain agents can call every tool natively. combine them with retrievers, memory, and output parsers for sophisticated AI pipelines.

Get MCP Server for AI Agents

ASK AI ABOUT THIS MCP SERVER

Open in ChatGPT Open in Claude Open in Perplexity

Vinkius supports streamable HTTP and SSE.

python

import asyncio
from langchain_mcp_adapters.client import MultiServerMCPClient
from langchain_openai import ChatOpenAI
from langgraph.prebuilt import create_react_agent

async def main():
    # Your Vinkius token. get it at cloud.vinkius.com
    async with MultiServerMCPClient({
        "erply-erp-pos": {
            "transport": "streamable_http",
            "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp",
        }
    }) as client:
        tools = client.get_tools()
        agent = create_react_agent(
            ChatOpenAI(model="gpt-4o"),
            tools,
        )
        response = await agent.ainvoke({
            "messages": [{
                "role": "user",
                "content": "Using Erply ERP & POS, show me what tools are available.",
            }]
        })
        print(response["messages"][-1].content)

asyncio.run(main())

Fully ManagedVinkius Servers

60%Token savings

High SecurityEnterprise-grade

IAMAccess control

EU AI ActCompliant

DLPData protection

V8 IsolateSandboxed

Ed25519Audit chain

<40msKill switch

Stream every event to Splunk, Datadog, or your own webhook in real-time

* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure

About Erply ERP & POS MCP Server

Integrate Erply, the powerful enterprise resource planning (ERP) and point-of-sale (POS) platform, directly into your AI workflow. Manage your retail product catalog and pricing, track sales documents and invoices, monitor real-time inventory levels across locations, and oversee your customer database using natural language.

LangChain's ecosystem of 500+ components combines seamlessly with Erply ERP & POS through native MCP adapters. Connect 10 tools via Vinkius and use ReAct agents, Plan-and-Execute strategies, or custom agent architectures. with LangSmith tracing giving full visibility into every tool call, latency, and token cost.

What you can do

Product Oversight — List and retrieve detailed information, SKUs, and pricing for all your retail products.
Sales Intelligence — Monitor sales documents and invoices, resolving document numbers, total amounts, and payment statuses.
Inventory Management — Access and monitor real-time stock levels, tracking available quantities and reserved counts across your ERP.
Retail Auditing — Retrieve high-level summaries of product volume, sales performance, and organizational inventory health instantly.

The Erply ERP & POS MCP Server exposes 10 tools through the Vinkius. Connect it to LangChain in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.

How to Connect Erply ERP & POS to LangChain via MCP

Follow these steps to integrate the Erply ERP & POS MCP Server with LangChain.

Install dependencies

Run pip install langchain langchain-mcp-adapters langgraph langchain-openai

Replace the token

Replace [YOUR_TOKEN_HERE] with your Vinkius token

Run the agent

Save the code and run python agent.py

Explore tools

The agent discovers 10 tools from Erply ERP & POS via MCP

Why Use LangChain with the Erply ERP & POS MCP Server

LangChain provides unique advantages when paired with Erply ERP & POS through the Model Context Protocol.

The largest ecosystem of integrations, chains, and agents. combine Erply ERP & POS MCP tools with 500+ LangChain components

Agent architecture supports ReAct, Plan-and-Execute, and custom strategies with full MCP tool access at every step

LangSmith tracing gives you complete visibility into tool calls, latencies, and token usage for production debugging

Memory and conversation persistence let agents maintain context across Erply ERP & POS queries for multi-turn workflows

Erply ERP & POS + LangChain Use Cases

Practical scenarios where LangChain combined with the Erply ERP & POS MCP Server delivers measurable value.

RAG with live data: combine Erply ERP & POS tool results with vector store retrievals for answers grounded in both real-time and historical data

Autonomous research agents: LangChain agents query Erply ERP & POS, synthesize findings, and generate comprehensive research reports

Multi-tool orchestration: chain Erply ERP & POS tools with web scrapers, databases, and calculators in a single agent run

Production monitoring: use LangSmith to trace every Erply ERP & POS tool call, measure latency, and optimize your agent's performance

Erply ERP & POS MCP Tools for LangChain (10)

These 10 tools become available when you connect Erply ERP & POS to LangChain via MCP:

get_erply_user_metadata

Retrieve metadata and settings for the current Erply user

get_product_detailed_data

Get detailed settings and information for a specific product

list_crm_customers

List all customers registered in your ERP

list_inventory_stock_levels

List real-time inventory levels across all products

list_latest_sales_transactions

Identify the most recently recorded sales documents

list_retail_price_lists

List all active price lists and promotion schemes

list_retail_products

List all products in your Erply retail account

list_sales_documents

List all sales invoices and documents

quick_retail_performance_audit

Retrieve a high-level summary of products, sales, and stock

search_products_by_name

Search for products using a name keyword

Example Prompts for Erply ERP & POS in LangChain

Ready-to-use prompts you can give your LangChain agent to start working with Erply ERP & POS immediately.

"List all products with zero stock."

"Show me the last 5 sales invoices."

"Search for product 'Wireless Mouse'."

Troubleshooting Erply ERP & POS MCP Server with LangChain

Common issues when connecting Erply ERP & POS to LangChain through the Vinkius, and how to resolve them.

MultiServerMCPClient not found

Install: pip install langchain-mcp-adapters

Erply ERP & POS + LangChain FAQ

Common questions about integrating Erply ERP & POS MCP Server with LangChain.

How does LangChain connect to MCP servers?

Use langchain-mcp-adapters to create an MCP client. LangChain discovers all tools and wraps them as native LangChain tools compatible with any agent type.

Which LangChain agent types work with MCP?

All agent types including ReAct, OpenAI Functions, and custom agents work with MCP tools. The tools appear as standard LangChain tools after the adapter wraps them.