How do I get my Meituan Waimai App ID and App Secret?

Log in to the [Meituan Waimai Developer Console](https://developer.waimai.meituan.com/), navigate to **API Documentation** > **Access Guide**, and register your application. You'll receive an App ID and App Secret. Make sure your application has the required API permissions for order management, menu access, and refund handling. The signature algorithm uses MD5 hashing of sorted parameters combined with your App Secret.

What's the order lifecycle in Meituan Waimai?

The typical order flow is: **1) Pending (待确认, status=1)** — Customer placed order, awaiting merchant confirmation. **2) Confirmed (已确认, status=3)** — Merchant accepted the order, kitchen starts preparation. **3) Delivering (配送中, status=5)** — Food is out for delivery with rider. **4) Completed (已完成, status=7)** — Customer received the order, payment settled. **5) Cancelled (已取消, status=8)** — Order was cancelled by merchant or customer. At each stage, you can query details, and merchants can con

How do I handle stock management and sold-out items?

Use the `update_stock` tool to set stock quantities for menu items. Set `stock=0` to mark an item as sold out (it will immediately disappear from the customer menu). Set a positive number to replenish stock. Get the food ID from the `list_menus` tool first. This is critical during peak hours when ingredients run out — quickly updating stock prevents customers from ordering unavailable items and reduces refund requests.

Meituan Waimai MCP Server for LangChain 10 tools — connect in under 2 minutes

Name: Meituan Waimai
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 Meituan Waimai through the 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({
        "meituan-waimai": {
            "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 Meituan Waimai, show me what tools are available.",
            }]
        })
        print(response["messages"][-1].content)

asyncio.run(main())

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About Meituan Waimai MCP Server

Connect your Meituan Waimai (美团外卖) restaurant operations to any AI agent and transform your delivery management through natural conversation. Meituan Waimai is China's largest food delivery platform, handling millions of daily orders across hundreds of thousands of restaurants.

LangChain's ecosystem of 500+ components combines seamlessly with Meituan Waimai through native MCP adapters. Connect 10 tools via the 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 Management — Retrieve detailed order information, list orders by status (pending, confirmed, delivering, completed, cancelled)
Order Lifecycle Control — Confirm new orders, mark orders as delivering, complete deliveries, or cancel with explanations
Refund Processing — Approve or reject customer refund requests with detailed reasoning and order verification
Restaurant Information — Query restaurant details including ratings, addresses, business hours, and delivery coverage
Menu Management — List full restaurant catalogs, filter by category, view prices, descriptions, and stock levels
Stock Control — Update item availability in real-time, mark items as sold out, or replenish inventory
Delivery Tracking — Mark orders as out for delivery with rider information for customer transparency

The Meituan Waimai 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 Meituan Waimai to LangChain via MCP

Follow these steps to integrate the Meituan Waimai 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 Meituan Waimai via MCP

Why Use LangChain with the Meituan Waimai MCP Server

LangChain provides unique advantages when paired with Meituan Waimai through the Model Context Protocol.

The largest ecosystem of integrations, chains, and agents — combine Meituan Waimai 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 Meituan Waimai queries for multi-turn workflows

Meituan Waimai + LangChain Use Cases

Practical scenarios where LangChain combined with the Meituan Waimai MCP Server delivers measurable value.

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

Autonomous research agents: LangChain agents query Meituan Waimai, synthesize findings, and generate comprehensive research reports

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

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

Meituan Waimai MCP Tools for LangChain (10)

These 10 tools become available when you connect Meituan Waimai to LangChain via MCP:

cancel_order

Requires a cancellation reason explaining why the order is being cancelled (e.g., "restaurant closed", "item out of stock", "unable to prepare"). The order must be in a cancellable state (not already completed or delivered). Use carefully as cancellations impact merchant ratings and customer experience. Cancel a Meituan delivery order with a reason

complete_order

This is the final state in the order lifecycle and indicates the customer has received their food. Should only be called after the delivery rider has confirmed drop-off or the customer has picked up the order. Triggers payment settlement to the merchant. Mark a Meituan delivery order as completed

confirm_order

This transitions the order to confirmed status and begins the preparation workflow. Required step before marking the order as delivering. Use the order ID from the order list and the restaurant POI ID. Essential for acknowledging new orders and starting the fulfillment process. Confirm a pending Meituan delivery order

get_order_detail

Use the order ID obtained from the order list to track specific orders, verify order contents, check delivery addresses, or investigate customer complaints. Essential for order management and customer service operations. Get detailed information about a specific Meituan delivery order

get_order_list

Filter by order status: 1=待确认 (pending confirmation), 3=已确认 (confirmed), 5=配送中 (delivering), 7=已完成 (completed), 8=已取消 (cancelled). Pagination uses page number and limit parameters. Critical for monitoring incoming orders, tracking order volume, and managing the order pipeline. List orders for a Meituan restaurant with optional status filter

get_restaurant_info

Use the POI ID (Point of Interest identifier) to get restaurant details before managing orders, verifying delivery coverage, or checking business hours. Essential for multi-restaurant operators managing multiple POIs. Get detailed information about a Meituan restaurant/POI

handle_refund

When rejecting, provide a reason explaining the refusal. Refund requests typically come with customer explanations and evidence. Use order details to verify the claim before making a decision. Approved refunds are processed back to the customer's original payment method. Approve or reject a refund request for a Meituan order

list_menus

Optionally filter by category ID to get items from a specific menu section (e.g., appetizers, mains, drinks). Critical for inventory management, price updates, and menu optimization. Returns stock quantities to help identify low-stock items. List menu items for a Meituan restaurant

mark_delivering

Optionally includes delivery rider name and phone number for customer tracking. Use this for self-delivery orders where the restaurant manages their own riders. For Meituan-managed delivery, the platform handles this automatically. Mark a Meituan order as being delivered (out for delivery)

update_stock

Use this to mark items as sold out (stock=0) when ingredients run out, or replenish stock when new inventory arrives. Stock changes immediately reflect on the customer-facing menu. Essential for preventing orders for unavailable items and maintaining accurate inventory. Food ID is obtained from the list_menus tool. Update stock quantity for a menu item in Meituan

Example Prompts for Meituan Waimai in LangChain

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

"Show me all pending orders for my restaurant POI123."

"Mark food ID 4567 as sold out for POI123 — we ran out of chicken."

"Handle refund request for order ORD-789 — customer says food never arrived. Approve it."

Troubleshooting Meituan Waimai MCP Server with LangChain

Common issues when connecting Meituan Waimai to LangChain through the Vinkius, and how to resolve them.

MultiServerMCPClient not found

Install: pip install langchain-mcp-adapters

Meituan Waimai + LangChain FAQ

Common questions about integrating Meituan Waimai 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.