eBay Seller MCP Server for LangChain 12 tools — connect in under 2 minutes
LangChain is the leading Python framework for composable LLM applications. Connect eBay Seller through Vinkius and LangChain agents can call every tool natively. combine them with retrievers, memory, and output parsers for sophisticated AI pipelines.
ASK AI ABOUT THIS MCP SERVER
Vinkius supports streamable HTTP and SSE.
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({
"ebay-seller": {
"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 eBay Seller, show me what tools are available.",
}]
})
print(response["messages"][-1].content)
asyncio.run(main())
* 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 eBay Seller MCP Server
Connect eBay Seller to any AI agent via MCP.
How to Connect eBay Seller to LangChain via MCP
Follow these steps to integrate the eBay Seller 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 12 tools from eBay Seller via MCP
Why Use LangChain with the eBay Seller MCP Server
LangChain provides unique advantages when paired with eBay Seller through the Model Context Protocol.
The largest ecosystem of integrations, chains, and agents. combine eBay Seller 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 eBay Seller queries for multi-turn workflows
eBay Seller + LangChain Use Cases
Practical scenarios where LangChain combined with the eBay Seller MCP Server delivers measurable value.
RAG with live data: combine eBay Seller tool results with vector store retrievals for answers grounded in both real-time and historical data
Autonomous research agents: LangChain agents query eBay Seller, synthesize findings, and generate comprehensive research reports
Multi-tool orchestration: chain eBay Seller tools with web scrapers, databases, and calculators in a single agent run
Production monitoring: use LangSmith to trace every eBay Seller tool call, measure latency, and optimize your agent's performance
eBay Seller MCP Tools for LangChain (12)
These 12 tools become available when you connect eBay Seller to LangChain via MCP:
create_listing
Requires SKU (from inventory), listing title, category ID, pricing, format (FIXED_PRICE or AUCTION), and return/shipping policies. Returns listingId for management. Use this to make your inventory products visible to buyers. Create a new eBay listing for an inventory item
delete_inventory
Note: you cannot delete inventory items that have active listings. Use this to clean up discontinued products. Delete an inventory item by SKU
delete_listing
If there are active bids (auction), this may violate eBay policies. For fixed-price, this simply removes the item from sale. Use this to quickly remove unwanted inventory from the marketplace. Delete/end an eBay listing
get_account_info
Use this to verify account status or display seller metrics. Get your eBay seller account information and feedback score
get_inventory_item
Use this to verify product details before updating or creating listings. Get detailed information for a specific inventory item by SKU
get_order_details
Use this to verify order contents before packing and shipping. Get detailed information for a specific order
get_orders
Optional filter parameter accepts criteria like "creationDate:[2024-01-01..2024-12-31]", "orderFulfillmentStatus:NOT_STARTED". Use this to manage order fulfillment pipeline. List recent orders with optional filtering
list_inventory
Each item includes SKU, title, condition, and available quantity. Use optional limit (default 50) and offset for pagination. Essential for reviewing stock levels. List all inventory items with SKUs, titles, and available quantities
list_listings
Each listing includes title, price, status, listing ID, and associated SKU. Use this to review what is currently live on eBay or recently ended. List active eBay listings for your store
ship_order
Updates buyer with shipping notification. Requires orderId, lineItemId, carrier name (e.g., "USPS", "FedEx", "UPS"), and tracking number. Use this to confirm shipment and complete the order cycle. Mark an order as shipped with carrier and tracking number
update_inventory
Requires SKU, title, condition, and product details (brand, MPN, UPC/EAN, description). Also updates stock quantity and pricing. Use this to manage your product catalog before listing items for sale. Update or create an inventory item with product details and stock quantity
update_listing
Note: certain fields cannot be changed once listing is active. Use this to adjust pricing or correct listing errors. Update an existing eBay listing (price, title, details)
Troubleshooting eBay Seller MCP Server with LangChain
Common issues when connecting eBay Seller to LangChain through the Vinkius, and how to resolve them.
MultiServerMCPClient not found
pip install langchain-mcp-adapterseBay Seller + LangChain FAQ
Common questions about integrating eBay Seller MCP Server with LangChain.
How does LangChain connect to MCP servers?
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?
Can I trace MCP tool calls in LangSmith?
Connect eBay Seller with your favorite client
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Leading Python framework for composable LLM applications.
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Microsoft's framework for multi-agent collaborative conversations.
Connect eBay Seller to LangChain
Get your token, paste the configuration, and start using 12 tools in under 2 minutes. No API key management needed.