How can I see all my pending orders?

Use the `search_orders` tool with status set to 'paid' or 'handling'. It will return a list of orders ready to be shipped.

How do I update the tracking number for a shipment?

Use the `set_tracking` action with the Order ID, Shipment ID, Carrier ID, and the Tracking Number.

Yes, use `cancel_order`. Be aware that cancelling orders can negatively impact your seller reputation metrics.

Can I register an invoice (Nota Fiscal) for a shipment?

Absolutely. Use the `register_invoice` tool with the shipment ID, invoice number (NF-e key), and access key. This is required for sellers in Brazil to comply with tax regulations.

Mercado Livre Orders MCP Server for LangChain 7 tools — connect in under 2 minutes

Name: Mercado Livre Orders
Availability: InStock
Author: Vinkius

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

Built by Vinkius GDPR 7 Tools Framework

LangChain is the leading Python framework for composable LLM applications. Connect Mercado Livre Orders 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({
        "mercado-livre-orders": {
            "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 Mercado Livre Orders, show me what tools are available.",
            }]
        })
        print(response["messages"][-1].content)

asyncio.run(main())

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* 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 Mercado Livre Orders MCP Server

Connect Mercado Livre Orders to any AI agent and take full control of your order management system — search sales, track shipments, register invoices, and handle cancellations through natural conversation.

LangChain's ecosystem of 500+ components combines seamlessly with Mercado Livre Orders through native MCP adapters. Connect 7 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

Order Search — Find sales by status (paid, shipping, delivered, cancelled)
Order Details — Get full info on buyer, items, and totals for a specific sale
Shipping Management — View shipping status, carrier info, and tracking codes
Tracking Updates — Set tracking numbers for shipments handled outside Mercado Envios
Buyer Feedback — Check ratings and comments left by buyers
Order Cancellation — Cancel sales when necessary (requires valid reason)

The Mercado Livre Orders MCP Server exposes 7 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 Mercado Livre Orders to LangChain via MCP

Follow these steps to integrate the Mercado Livre Orders 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 7 tools from Mercado Livre Orders via MCP

Why Use LangChain with the Mercado Livre Orders MCP Server

LangChain provides unique advantages when paired with Mercado Livre Orders through the Model Context Protocol.

The largest ecosystem of integrations, chains, and agents. combine Mercado Livre Orders 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 Mercado Livre Orders queries for multi-turn workflows

Mercado Livre Orders + LangChain Use Cases

Practical scenarios where LangChain combined with the Mercado Livre Orders MCP Server delivers measurable value.

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

Autonomous research agents: LangChain agents query Mercado Livre Orders, synthesize findings, and generate comprehensive research reports

Multi-tool orchestration: chain Mercado Livre Orders tools with web scrapers, databases, and calculators in a single agent run

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

Mercado Livre Orders MCP Tools for LangChain (7)

These 7 tools become available when you connect Mercado Livre Orders to LangChain via MCP:

cancel_order

Requires a valid reason. Cancel a sale

get_feedback

Get buyer feedback/reputation for a sale

get_order

Get details of a specific sale

get_shipments

List shipments associated with an order

get_shipping_info

Get shipping details for an order

search_orders

Search for sales/orders

set_tracking

Set tracking number for a shipment

Example Prompts for Mercado Livre Orders in LangChain

Ready-to-use prompts you can give your LangChain agent to start working with Mercado Livre Orders immediately.

"Show me all orders that need shipping."

"Get details for order MLB-Order123."

"Register invoice 9999 for shipment 12345 with tracking XYZ."

Troubleshooting Mercado Livre Orders MCP Server with LangChain

Common issues when connecting Mercado Livre Orders to LangChain through the Vinkius, and how to resolve them.

MultiServerMCPClient not found

Install: pip install langchain-mcp-adapters

Mercado Livre Orders + LangChain FAQ

Common questions about integrating Mercado Livre Orders 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.