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Green Street MCP Server for LangChain 12 tools — connect in under 2 minutes

Built by Vinkius GDPR 12 Tools Framework

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

asyncio.run(main())
Green Street
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 Green Street MCP Server

Connect your Green Street account to any AI agent and take full control of your commercial real estate (CRE) and REIT intelligence through natural conversation.

LangChain's ecosystem of 500+ components combines seamlessly with Green Street through native MCP adapters. Connect 12 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

  • Company Orchestration — List all listed REITs and companies in your coverage and retrieve primary financial summaries natively
  • Live Metric Retrieval — Resolve deep specific metrics including Net Asset Values (NAVs), earnings (FFO/FAD), and capitalization rates flawlessly
  • Market Analytics — Extract market-level analytics and grades to understand competitive rankings across property sectors synchronously
  • Strategic Forecasting — Access forward-looking market projections and NOI forecasts generated by Green Street's advisory teams natively
  • News Intelligence — Search and retrieve curated commercial real estate news articles and excerpts to stay ahead of market shifts synchronously
  • Portfolio Navigation — Identify geographic and property-type breakouts for specific REIT portfolios to audit exposure flawlessly

The Green Street MCP Server exposes 12 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 Green Street to LangChain via MCP

Follow these steps to integrate the Green Street 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 12 tools from Green Street via MCP

Why Use LangChain with the Green Street MCP Server

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

01

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

Green Street + LangChain Use Cases

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

01

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

02

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

03

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

04

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

Green Street MCP Tools for LangChain (12)

These 12 tools become available when you connect Green Street to LangChain via MCP:

01

get_company_summary

Get financial summary for a specific company by symbol

02

get_earnings_metrics

Get FFO/FAD earnings data for a company

03

get_forecast_scenarios

Retrieve forward-looking market and sector projections

04

get_historical_transactions

Retrieve historical transaction summaries

05

get_market_grades

Get grades and rankings for a specific market

06

get_market_projections

Get forward-looking NOI projections for a market

07

get_market_sector_summary

Get analytics and grades for a specific market sector

08

get_nav_estimates

Get Net Asset Value (NAV) estimates for a company

09

get_news_articles

Search and retrieve commercial real estate news

10

get_portfolio_breakout

Get geographic and property-type breakouts for a portfolio

11

list_companies

List all REITs and real estate companies covered by Green Street

12

list_sectors

List available real estate sectors

Example Prompts for Green Street in LangChain

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

01

"List all listed REITs in the Industrial sector"

02

"What is the market grade for the New York Office market?"

03

"Show me the portfolio breakout for Prologis (PLD)"

Troubleshooting Green Street MCP Server with LangChain

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

01

MultiServerMCPClient not found

Install: pip install langchain-mcp-adapters

Green Street + LangChain FAQ

Common questions about integrating Green Street 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 Green Street to LangChain

Get your token, paste the configuration, and start using 12 tools in under 2 minutes. No API key management needed.