Can my AI agent issue a DIAN-compliant electronic invoice for Colombia?

Yes! Use the `create_invoice` tool with the client ID, line items, and dates. Alegra automatically handles DIAN electronic validation and stamping for Colombian tax compliance. The invoice number sequence is managed by Alegra's configured resolution.

How do I look up a client's outstanding balance and contact details?

Use the `get_contact` tool with the client's Alegra ID. You'll receive their complete profile including legal name, NIT or CC number, fiscal regime, address, phone, email, and any outstanding receivable balance.

Can I manage inventory across multiple warehouses through my AI agent?

Yes. Use `list_warehouses` to see all your configured locations, then use `list_items` to browse your catalog with stock levels per warehouse. You can also create new items with `create_item` specifying their type (product or service) and pricing.

Alegra Alternative MCP Server for LangChain 14 tools — connect in under 2 minutes

Name: Alegra Alternative
Availability: InStock
Author: Vinkius

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

Built by Vinkius GDPR 14 Tools Framework

LangChain is the leading Python framework for composable LLM applications. Connect Alegra Alternative 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({
        "alegra-alternative": {
            "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 Alegra Alternative, show me what tools are available.",
            }]
        })
        print(response["messages"][-1].content)

asyncio.run(main())

Fully ManagedVinkius Servers

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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 Alegra Alternative MCP Server

Connect your Alegra cloud accounting platform to any AI agent and manage your entire financial operation through natural conversation.

LangChain's ecosystem of 500+ components combines seamlessly with Alegra Alternative through native MCP adapters. Connect 14 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

Invoice Management — Create, list, and inspect sales invoices with DIAN electronic invoicing compliance for Colombia, including tax breakdowns and payment tracking
Contact Directory — Manage your complete client and supplier database with NIT/CC identification, fiscal regime classification, and outstanding balances
Inventory Control — Browse products and services, check stock per warehouse, manage pricing, and create new catalog items
Expense Tracking — List supplier bills, purchase invoices, and track payable obligations across your accounting periods
Payment Monitoring — Query received payments, bank account balances, and reconciliation status in real-time
Tax Configuration — Access IVA rates, retention types, ICA taxes, and country-specific tax parameters

The Alegra Alternative MCP Server exposes 14 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 Alegra Alternative to LangChain via MCP

Follow these steps to integrate the Alegra Alternative 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 14 tools from Alegra Alternative via MCP

Why Use LangChain with the Alegra Alternative MCP Server

LangChain provides unique advantages when paired with Alegra Alternative through the Model Context Protocol.

The largest ecosystem of integrations, chains, and agents. combine Alegra Alternative 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 Alegra Alternative queries for multi-turn workflows

Alegra Alternative + LangChain Use Cases

Practical scenarios where LangChain combined with the Alegra Alternative MCP Server delivers measurable value.

RAG with live data: combine Alegra Alternative tool results with vector store retrievals for answers grounded in both real-time and historical data

Autonomous research agents: LangChain agents query Alegra Alternative, synthesize findings, and generate comprehensive research reports

Multi-tool orchestration: chain Alegra Alternative tools with web scrapers, databases, and calculators in a single agent run

Production monitoring: use LangSmith to trace every Alegra Alternative tool call, measure latency, and optimize your agent's performance

Alegra Alternative MCP Tools for LangChain (14)

These 14 tools become available when you connect Alegra Alternative to LangChain via MCP:

create_contact

For Colombian tax compliance (DIAN), include the identification type (NIT, CC, CE) and number. The contact can be tagged as client, supplier, or both. Create a new contact (client or supplier)

create_invoice

For Colombian DIAN electronic invoicing compliance, the invoice is automatically validated and stamped. Requires a client ID and at least one line item with the product/service details. Create a new sales invoice

create_item

The item can be used in future invoices, purchase orders, and inventory tracking. Set the type to "product" for physical goods with stock management or "service" for intangible services. Create a new inventory item

get_contact

Get full details of a specific contact

get_invoice

Get full details of a specific invoice

get_item

Get full details of a specific inventory item

list_bank_accounts

List all bank accounts

list_bills

List supplier bills and purchase invoices

list_contacts

Each contact includes their legal name, NIT/CC identification, address, phone, email, and whether they are classified as a client, supplier, or both. List all contacts (clients and suppliers)

list_invoices

List sales invoices

list_items

List all inventory items

list_payments

List received payments

list_taxes

List configured tax rates

list_warehouses

List all warehouses

Example Prompts for Alegra Alternative in LangChain

Ready-to-use prompts you can give your LangChain agent to start working with Alegra Alternative immediately.

"List the last 5 invoices and show me which ones are still unpaid."

"Create an invoice for client ID 42 with 3 units of item 15 at $50,000 COP each."

"Show me all IVA tax rates configured in my Alegra account."

Troubleshooting Alegra Alternative MCP Server with LangChain

Common issues when connecting Alegra Alternative to LangChain through the Vinkius, and how to resolve them.

MultiServerMCPClient not found

Install: pip install langchain-mcp-adapters

Alegra Alternative + LangChain FAQ

Common questions about integrating Alegra Alternative 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.