Middesk MCP. Verify any business's legal standing and tax compliance.
Middesk MCP connects your AI client to comprehensive Business Identity (KYB) and compliance verification. It lets you verify corporate entities, access Secretary of State documents, manage tax registrations, and auto-complete business details using real-time data.
Give Claude and any AI agent real-world access
You send a request and get real-time status updates while creating and tracking new business verification jobs.
The MCP fetches official documents directly from the Secretary of State, like Articles of Incorporation.
It takes a single identifier, like an EIN or URL, and automatically fills in core business information fields.
You can manage and track specific state tax registrations and overall payroll compliance status for multiple entities.
The system searches existing records, offering live suggestions for businesses based on Secretary of State data.
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What AI agents can do with Middesk: 9 Tools for Compliance Data
These tools let your agent perform specific, verifiable actions like searching business lists or retrieving single corporate documents based on official identifiers.
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 Middesk MCPAutocomplete Identity
Suggests complete business identities based on partial information you provide.
Create Business
Initiates a new, monitored request to verify an entire business entity using its...
Get Business
Retrieves all available public and official records for a specific, known company ID.
Get Document
Fetches the content of one specific corporate filing or document by its unique...
Get Tax Registration
Retrieves all compliance details for a single state tax registration number.
List Businesses
Searches and returns lists of multiple businesses based on general criteria you specify.
List Documents
Returns a list of all available official documents associated with a specific business ID.
List Tax Registrations
Lists all state tax registrations linked to a particular corporate entity.
Prefill Business
Quickly populates common business details when you provide an identifier, like a...
Security and governance baked right in.
Pick your AI client below to get set up. Just create a Vinkius account, subscribe, and you're instantly up and running. We handle the entire backend infrastructure, delivering out-of-the-box support for HTTPS Streamable, SSE, and OAuth2—zero messy routing required.
Choose How to Get Started
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Build Your Own
Turn any API into an MCP. Import a spec, define Agent Skills, or deploy with MCPFusion.
- Import from OpenAPI, Swagger, or YAML specs
- Create Agent Skills with progressive disclosure
- Deploy to edge with MCPFusion framework
- Built in DLP, auth, and compliance on each call
- Real time usage dashboard and cost metering
- Publish to catalog or keep private
Make Your AI Do More
Start with Middesk, then connect any of our 5,200+ other servers whenever your AI needs more. One click, no limits.
- Use this MCP plus 5,200+ others, all in one place
- Add new capabilities to your AI anytime you want
- Connections are secured and governed automatically
- Track usage and costs across all your servers
- Works with Claude, ChatGPT, Cursor, and more
- New servers added to the catalog weekly
Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Middesk. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.
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Compliance checks shouldn't feel like detective work.
Today, verifying a company’s identity is a mess. You start with the corporate website, which gives you a name. Then you have to open State A's Secretary of State portal and manually search for filings. If that doesn't work, you move to State B, then maybe the IRS site to check tax status. It's hours of clicking through different portals and copy-pasting IDs into forms just to establish basic legitimacy.
With this MCP, that entire sequence vanishes. You give your agent a simple prompt. The system handles the routing: it checks the corporate records, pulls necessary filings from multiple states, and compiles everything for you in one clean response. You get verified, actionable data instantly.
Middesk MCP Provides Verified Business Identity Data
You no longer have to copy-paste a name into three different state websites just to confirm incorporation status. The agent can use the `get_business` tool, which pulls verified data from multiple sources simultaneously.
The result is immediate confirmation of legitimacy and compliance across jurisdictions. You stop wasting time on redundant manual checks and start making decisions with certainty.
What Middesk MCP does for your AI
This MCP gives your agent the ability to handle complex identity checks for businesses. You can start by asking it to populate core business data just from an EIN or a website address. Need to know if a company is properly registered? It retrieves official Secretary of State filings and documents, so you don't have to check multiple state websites.
The system also lets you manage tax registrations and track payroll compliance across states. When the information is complex, linking up through Vinkius makes it easy; your agent gets access to all these tools in one place. You can monitor verification requests live or search for businesses using suggestions based on existing SOS records.
019d75d4-8478-731a-b654-e26c92daf8cd How to set up Middesk MCP
The bottom line is that you stop hopping between compliance tools and run all your KYC checks in one place.
Subscribe to this MCP and enter your Middesk API Key into your client.
Ask your agent to perform an identity check or retrieve a specific document for the business you're investigating.
The MCP executes the lookup, pulls the data from official sources, and returns verified records directly to your workflow.
Who uses Middesk MCP
Anyone who deals with corporate onboarding, due diligence, or financial compliance. If your job involves verifying a company's legal standing before making a deal, you need this.
Needs to run full Know Your Business (KYB) checks on new partners and track their state tax registrations for regulatory audits.
Requires the ability to pull official corporate documents, like articles of incorporation, and validate entity existence quickly during M&A due diligence.
Often needs to verify a company's legal details or check its status against Secretary of State records before running financial models.
Benefits of connecting Middesk MCP
Instead of manually checking state websites for documents, this MCP lets your agent retrieve official Secretary of State filings instantly using the get_document tool. You get verified history in seconds.
When onboarding a client, you can use prefill_business to populate basic details from just one identifier. This saves hours of copy-pasting and initial data gathering.
Compliance checks are simpler. Use list_tax_registrations to see every state tax registration tied to an entity in one API call, instead of running multiple searches.
You can monitor the full lifecycle of a check. Start with create_business, which kicks off a request you then track until it's fully verified, providing clear status updates.
Need to find an unknown company? Use autocomplete_identity first. This provides live suggestions based on SOS data, guiding your investigation before you even know the full name.
Middesk MCP use cases
Due diligence for a potential acquisition.
The M&A team needs to validate the target company's legal standing. They ask their agent to use list_documents and get_document on the primary business ID, instantly retrieving all articles of incorporation and annual reports needed for the pitchbook.
Onboarding a new vendor from another state.
The procurement officer needs to know if the vendor is compliant everywhere. They use list_tax_registrations to check all known states, ensuring tax compliance before signing any purchase order.
Investigating a suspicious business name online.
Instead of searching Google for conflicting addresses, the user asks their agent to use autocomplete_identity. The MCP provides live, accurate suggestions based on official Secretary of State records immediately.
Validating a client's primary corporate identity.
The sales team receives an EIN and needs basic facts. They ask the agent to run prefill_business, which quickly pulls verified legal names, addresses, and other core details, allowing the pitch to move forward immediately.
Middesk MCP tradeoffs
What to watch out for, and the recommended way to handle each one.
Treating it like a general search engine
Asking your agent: 'Tell me everything about Acme Corp.' This returns random links and requires you to sift through non-official data, wasting time.
Be specific. Tell the MCP exactly what you need, like: 'Use get_document to find the Articles of Incorporation for Acme Corp's ID.' Use specific tools for precise results.
Relying on partial information without context
Just sending a name and saying, 'Is this company real?' The system can't tell if it needs state, federal, or corporate records.
Start with autocomplete_identity to get the official ID first. Once you have that ID, use tools like get_business for comprehensive data.
Assuming all compliance data is in one place
Thinking a single search will show tax status for every state.
Use list_tax_registrations to gather all known registrations first. Then, use get_tax_registration on the specific numbers you need to confirm compliance.
When to use Middesk MCP
Use this MCP if your job requires verifiable proof of a company's legal status or tax standing. If due diligence involves checking corporate records, state filings, EIN validation, or multi-state tax IDs, this is your tool. Don't use it if you just need general business contact information—other directories are fine for that. Also, don't rely on it to find internal company documents; it only accesses public and official government records. If you simply need to draft an email based on a name, use a standard text generator instead.
Frequently asked questions about Middesk MCP
Does the Middesk MCP verify private business information? +
No, this MCP only accesses official public records like those maintained by Secretary of State offices. It won't provide internal financial data or non-public employee info.
How do I use the `autocomplete_identity` tool with Middesk MCP? +
To use it, just ask your agent to autocomplete an identity using a partial detail like a website. The tool returns live suggestions based on existing Secretary of State records.
Can I check tax compliance for multiple states using the Middesk MCP? +
Yes. You can use list_tax_registrations to find all known state registrations, then confirm specific statuses with get_tax_registration.
What if I don't know the company ID for a business? +
You can start by using prefill_business. Providing an EIN or website will often allow the system to look up and confirm core details without needing the specific internal ID.
Is this MCP better than manually checking corporate records? +
Yes. It automates the multi-step process of gathering data from multiple, disparate government sources into a single structured response.