How do I find my Nubarium API Key?

Log in to your [**Nubarium dashboard**](https://nubarium.com/), and you will find your API Key under the 'API Settings' or 'My Keys' section. Copy and paste it below.

Can the agent validate Mexican tax IDs (RFC)?

Yes. Use the `validate_mex_rfc` tool providing the RFC string. Your agent will verify its status with official sources instantly.

Is CURP validation supported for individuals?

Yes. The `validate_mex_curp` tool allows your agent to check the identity status of individuals in Mexico using their unique CURP ID.

Nubarium MCP Server for LangChain 6 tools — connect in under 2 minutes

Name: Nubarium
Availability: InStock
Author: Vinkius

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

Built by Vinkius GDPR 6 Tools Framework

LangChain is the leading Python framework for composable LLM applications. Connect Nubarium 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({
        "nubarium": {
            "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 Nubarium, 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 Nubarium MCP Server

Empower your AI agent to orchestrate your entire Mexican identity and corporate research workflow with Nubarium, the leading platform for Mexican data intelligence. By connecting Nubarium to your agent, you transform complex national lookups into a natural conversation. Your agent can instantly validate RFC (Tax ID) and CURP (Identity ID) records, audit company profiles, and verify legal representative status without you ever touching a manual portal. Whether you are conducting KYC checks or regional due diligence, your agent acts as a real-time institutional analyst, ensuring your Mexican data is always verified and up-to-date.

LangChain's ecosystem of 500+ components combines seamlessly with Nubarium through native MCP adapters. Connect 6 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

Identity Auditing — Validate Mexican CURP records and retrieve detailed personal metadata, including names and birth details.
Tax Oversight — Verify RFC registration status and retrieve comprehensive tax profiles for individuals and businesses.
Corporate Discovery — Search for Mexican companies by name and retrieve detailed dossiers to understand organizational status.
Compliance Intelligence — Verify the link between legal representatives and companies to assist in due diligence.
Operational Monitoring — Check API usage metadata to maintain strict control over your research volume.

The Nubarium MCP Server exposes 6 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 Nubarium to LangChain via MCP

Follow these steps to integrate the Nubarium 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 6 tools from Nubarium via MCP

Why Use LangChain with the Nubarium MCP Server

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

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

Nubarium + LangChain Use Cases

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

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

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

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

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

Nubarium MCP Tools for LangChain (6)

These 6 tools become available when you connect Nubarium to LangChain via MCP:

get_api_usage

Get current API usage metadata from Nubarium

get_mex_company_details

Get full details for a Mexican company by ID

search_mex_companies

Search for companies in Mexico by name

validate_mex_curp

Validate a Mexican CURP (identity ID) and retrieve details

validate_mex_legal_representative

Verify the legal representative status for an RFC and CURP

validate_mex_rfc

Validate a Mexican RFC (tax ID) and retrieve details

Example Prompts for Nubarium in LangChain

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

"Validate the Mexican RFC 'ABC123456XYZ' using Nubarium."

"Check the Mexican CURP for 'John Doe'."

"Find companies in Mexico with name 'Soluciones Tech'."

Troubleshooting Nubarium MCP Server with LangChain

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

MultiServerMCPClient not found

Install: pip install langchain-mcp-adapters

Nubarium + LangChain FAQ

Common questions about integrating Nubarium 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.