Nubarium MCP for AI. Audit full corporate records & identities in Mexico.
Works with every AI agent you already use
…and any MCP-compatible client








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Nubarium gives your AI agent access to Mexican corporate and identity data. It lets you validate RFC (tax ID), CURP (identity ID), and search for companies directly in natural conversation.
You can audit legal representatives, check company status, and verify complex national records without touching a manual government portal.
What your AI can do
Validate mex curp
Confirms if a provided Mexican CURP is valid and returns associated personal details like names or birth locations.
Validate mex rfc
Validates a Mexican tax ID (RFC) and retrieves comprehensive, up-to-date tax profile information.
Get mex company details
Pulls a full, detailed record for a Mexican company using its unique identification number.
Confirms a Mexican CURP ID is active and pulls detailed personal metadata linked to that identifier.
Checks the status of any RFC (Tax ID) for both individuals and businesses, returning comprehensive tax profiles.
Queries the database to find multiple matching Mexican company records using a simple name search.
Retrieves all available details for a specific Mexican company ID, providing a complete view of its status and history.
Checks the official link between an individual (CURP/RFC) and a corporate entity to confirm representative status for due diligence.
Reports current API call metadata, letting you track how much research volume your agent is generating.
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Nubarium MCP Server: 6 Tools for Mexican Compliance
This server gives your agent six tools to run complete identity validation, tax audits, and corporate searches against authoritative Mexican records.
Make your AI actually useful.
Add this MCP to Claude, Cursor, or Windsurf and your AI stops guessing. It gets real tools to look things up, take action, and handle the stuff you keep doing by hand.
Start using Nubarium on VinkiusValidate Mex Curp
Confirms if a provided Mexican CURP is valid and returns associated personal details like names or birth locations.
Validate Mex Rfc
Validates a Mexican tax ID (RFC) and retrieves comprehensive, up-to-date tax profile...
Get Mex Company Details
Pulls a full, detailed record for a Mexican company using its unique identification...
Get Api Usage
Retrieves metadata showing the current usage and consumption limits for your...
Search Mex Companies
Searches the directory for multiple Mexican companies based only on a name string...
Validate Mex Legal Representative
Checks the official records to confirm an individual's legal representative status for both their RFC and CURP against a company.
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Works with Claude, ChatGPT, Cursor, and more
The Model Context Protocol standardizes how applications expose capabilities to LLMs. Instead of operating in isolation, your AI gains direct access to external platforms, live data, and real-world actions through secure, standardized connections.
This connection provides 6 powerful capabilities that interface natively with Claude, ChatGPT, Cursor, and other compatible AI platforms. No middleware. No custom integration required.
Checking corporate background shouldn't require six different government portals.
Today, running due diligence is a nightmare of manual tabs. You start by searching an official company registry, then open another portal to check the Tax ID (RFC), and maybe a third one just to see who the legal representative is. It's copy-paste hell—and you lose track of which data point came from where.
With Nubarium, your agent runs that whole sequence in milliseconds. You ask it: 'What's the status of Acme Corp?' And it returns a single answer, pulling company details (using `get_mex_company_details`), verifying its tax ID (`validate_mex_rfc`), and confirming representation—all without you ever leaving the chat window.
Nubarium: Get full corporate records with get_mex_company_details.
Before this server, getting a comprehensive picture of a company meant piecing together five or six disparate data points from different government sources. You'd end up with incomplete dossiers that were hard to trust.
Now you get the full dossier. The `get_mex_company_details` tool gathers all relevant corporate metadata in one call, giving you maximum context and minimum friction. It’s the single source of truth for Mexican business intelligence.
What your AI can actually do with this
Nubarium gives your AI agent direct access to Mexican corporate records and national identity data. When you connect this server, your agent runs deep due diligence against authoritative Mexican sources without needing a manual portal login. It's built for risk managers and compliance teams who need hard facts fast.
Validating Personal Identity Records
You can confirm if a person’s CURP is active and pull associated personal metadata using validate_mex_curp. This tool retrieves details like names or birth locations linked to the identifier. To check tax status, you use validate_mex_rfc, which verifies both individual and business RFC numbers and returns comprehensive, up-to-date tax profiles for that entity.
Researching Corporate Entities
You can start by querying the directory with search_mex_companies to pull a list of potential Mexican businesses based solely on a name string. Once you have an ID, you get all available details—a full corporate dossier—by calling get_mex_company_details. This provides a complete view of the company’s status and history.
Verifying Legal Links (Due Diligence)
The most critical check is verifying legal representation. You use validate_mex_legal_representative to confirm if an individual is officially linked as a representative for a specific corporate entity, cross-referencing both their RFC and CURP against the company's records.
Monitoring Usage
For operational visibility, you can check your API consumption limits using get_api_usage. This reports the current usage metadata so you know exactly how much research volume your agent is generating.
It's simple: You just ask the agent questions in plain English. It handles all the function calls behind the scenes. Don't worry about complicated data structures; just give it names, IDs, and concepts, and your AI client runs the necessary checks.
019d8461-882d-716e-b9dd-9a4aa31853df Here's how it actually works
The bottom line is you get validated Mexican data directly in chat, without leaving your AI client.
Subscribe to the Nubarium MCP Server and input your unique API key.
Connect your preferred AI client (Claude, Cursor, etc.) to the server via the MCP protocol.
Instruct your agent with natural language queries (e.g., 'Validate this RFC'). The agent executes the necessary tool calls using the stored credentials.
Who is this actually for?
Anyone who needs to verify legal status or corporate background on Mexican entities. This is for Compliance Officers running daily KYC checks; Risk Managers needing immediate due diligence before a transaction; and Data Analysts automating regional tax ID audits that would otherwise take days of manual portal work.
Uses validate_mex_curp and validate_mex_rfc to ensure all clients meet local identity standards before onboarding.
Employs the server to check corporate backgrounds (get_mex_company_details) and verify legal representative status for high-risk accounts.
Automates large-scale checks, using search_mex_companies followed by targeted API calls to build datasets of regional tax IDs.
What Changes When You Connect
Complete Compliance Checks: Use validate_mex_curp and validate_mex_rfc to instantly audit identity IDs. You get confirmation that the data is accurate, saving days of manual portal work.
Deep Corporate Dossiers: Don't just get a name match. Run get_mex_company_details after using search_mex_companies to pull an entire corporate history for due diligence.
Confirm Legal Status: Use validate_mex_legal_representative to prove who runs the company. This is crucial; you verify the link between a person and the entity, not just their IDs.
Speed Over Manual Portals: Your agent handles all the complex lookup logic. You don't open six different government websites—you ask one question in chat.
Track Usage Effortlessly: Run get_api_usage to monitor your research volume and keep strict control over API consumption, which is vital for large-scale data analysis.
See it in action
Onboarding a new partner in Mexico
The risk manager needs to onboard 'Acme Corp.' They first run search_mex_companies by name. Once they get the ID, they use get_mex_company_details. Finally, they verify the primary signatory using validate_mex_legal_representative, ensuring all compliance checks pass before signing a contract.
Auditing a suspect tax profile
A data analyst suspects an individual's tax status. They start by running validate_mex_rfc with the known ID. This confirms if the RFC is active and retrieves the full tax regime metadata, solving the problem of incomplete public records.
Verifying a client's personal identity
A compliance officer gets a new lead. They use validate_mex_curp with the provided ID and name. The tool validates the CURP and returns detailed birth information, instantly confirming if the person is who they claim to be.
Due diligence on an unknown entity
A user needs to know everything about 'Soluciones Tech'. They run search_mex_companies to get a list of potential matches, then pick the most likely ID and execute get_mex_company_details. This gives them a full corporate picture in one sequence.
The honest tradeoffs
Assuming IDs are enough
A user runs only validate_mex_rfc and assumes the company is legitimate. They miss checking who actually holds legal authority.
You must follow up with validate_mex_legal_representative. This confirms that the RFC owner is genuinely authorized to act for the corporate entity, adding a critical layer of security.
Running searches too vaguely
Trying to validate an identity without first confirming if they are associated with a known company profile.
Always use search_mex_companies first. Getting a company ID helps narrow the scope, allowing you to run targeted checks like validating the representative using validate_mex_legal_representative.
Ignoring usage limits
Running hundreds of validation calls back-to-back without checking consumption.
Before massive data pulls, run get_api_usage. This lets you monitor your current API quota and prevents unexpected service interruptions mid-workflow.
When It Fits, When It Doesn't
Use this server if your workflow requires official Mexican identity (CURP) or tax ID (RFC) verification. If your goal is simple, general research—like finding a company by name alone—you can start with search_mex_companies. But if you need to know the legal status of that company or who signed off on it, you must run the deeper tools: get_mex_company_details and validate_mex_legal_representative. Don't use this if you just need a list of names; use it when you need proof backed by Mexican governmental data. The server handles the complexity; you focus on the compliance outcome.
Questions you might have
How do I validate a person's identity using validate_mex_curp? +
You provide the CURP ID and the agent validates it against records. It confirms if the ID is active and returns associated personal metadata, like names or birth locations.
Which tool should I use to check a company's tax status? +
Use validate_mex_rfc. This checks the RFC (Tax ID) for both individuals and businesses, providing comprehensive and current tax profile data.
Can I only search companies by name using search_mex_companies? +
Yes. The search_mex_companies tool takes a name string as input to locate potential matches across the directory, which you then refine with get_mex_company_details.
How does validate_mex_legal_representative work? +
This tool verifies the formal link between an individual (using CURP/RFC) and a corporate entity. It confirms if that person is officially recognized as a legal representative for the business.
Is there a way to track my API usage with Nubarium? +
Yes, you use get_api_usage. This tool pulls metadata showing your current quota and consumption limits, helping you manage large-scale data queries.
What's the proper workflow when I first use `search_mex_companies` to find a record? +
You must run search_mex_companies before getting details. The search returns potential matches, and you then need the specific company ID to pass into get_mex_company_details. This ensures you pull the correct dossier for that entity.
If I use `validate_mex_rfc` and receive an error message, does it mean the tax ID is fake? +
It means the system could not find a match or the ID isn't active. The specific error code tells you if the issue is invalid formatting or simply that no record exists for that RFC.
When I call `validate_mex_curp`, what kind of personal data do I get back besides validation status? +
You receive comprehensive identity metadata. This includes the name associated with the ID, birth date, and location details for the record found in Mexico.
How do I find my Nubarium API Key? +
Log in to your Nubarium dashboard, 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.
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