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

Built by Vinkius GDPR 10 Tools Framework

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

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({
        "kvcore": {
            "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 kvCORE, show me what tools are available.",
            }]
        })
        print(response["messages"][-1].content)

asyncio.run(main())
kvCORE
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 kvCORE MCP Server

Connect your AI agent to kvCORE, the primary platform for real estate professionals to manage their entire business.

LangChain's ecosystem of 500+ components combines seamlessly with kvCORE 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.

Key Features

  • Lead Management — Search and audit lead profiles, update statuses, and add manual notes through natural language
  • Listing Intelligence — Access active property listings and detailed metadata including features and pricing
  • Marketing Visibility — List and monitor smart campaigns and automated marketing sequences
  • Agent Workflow — Audit pending tasks, reminders, and recent lead activities to stay on top of follow-ups
  • Profile Insights — Fetch agent profile data and high-level account configuration

Simple Setup

1. Subscribe to this server
2. Log in to kvCORE, go to Settings > API, and generate an API Key
3. Enter your key in the configuration panel
4. Start managing your real estate business via chat

The kvCORE 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 kvCORE to LangChain via MCP

Follow these steps to integrate the kvCORE MCP Server with LangChain.

01

Install dependencies

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

02

Replace the token

Replace [YOUR_TOKEN_HERE] with your Vinkius token

03

Run the agent

Save the code and run python agent.py

04

Explore tools

The agent discovers 10 tools from kvCORE via MCP

Why Use LangChain with the kvCORE MCP Server

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

01

The largest ecosystem of integrations, chains, and agents. combine kvCORE MCP tools with 500+ LangChain components

02

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

03

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

04

Memory and conversation persistence let agents maintain context across kvCORE queries for multi-turn workflows

kvCORE + LangChain Use Cases

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

01

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

02

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

03

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

04

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

kvCORE MCP Tools for LangChain (10)

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

01

create_lead_note

Add a note to a lead profile

02

get_agent_profile

Get current agent information

03

get_lead_details

Get details for a specific lead

04

get_listing_details

Get metadata for a specific listing

05

list_agent_tasks

List pending tasks for the agent

06

list_lead_activity

List recent activity for a lead

07

list_marketing_campaigns

List all marketing campaigns

08

list_property_listings

List active property listings

09

search_kvcore_leads

Returns lead IDs and basic contact info. Search for leads in kvCORE

10

update_lead_info

g., status, phone). Provide data as a JSON string. Update an existing lead

Example Prompts for kvCORE in LangChain

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

01

"Search for a lead named 'Alice' in my kvCORE"

02

"Show me details for the property at '123 Maple St'"

03

"List my tasks for today"

Troubleshooting kvCORE MCP Server with LangChain

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

01

MultiServerMCPClient not found

Install: pip install langchain-mcp-adapters

kvCORE + LangChain FAQ

Common questions about integrating kvCORE MCP Server with LangChain.

01

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.
02

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.
03

Can I trace MCP tool calls in LangSmith?

Yes. All MCP tool invocations appear as traced steps in LangSmith, showing input parameters, response payloads, latency, and token usage.

Connect kvCORE to LangChain

Get your token, paste the configuration, and start using 10 tools in under 2 minutes. No API key management needed.