How to Use the Middesk MCP in Mastra AI

Build reliable KYB workflows with Mastra AI and Middesk to automate complex business checks.

See Vinkius in Action

Works with every AI agent you already use

…and any MCP-compatible client

MCP Servers - Free for Subscribers

Connect Middesk MCP to Mastra AI

Create your Vinkius account to connect Middesk to Mastra AI and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

GDPR Free for Subscribers

Setup Middesk with Mastra AI

Ask AI about this MCP

ChatGPT

Claude

Perplexity

Automated Multi-Step Business Creation

The `create_business` tool registers a new entity verification pipeline inside your Mastra AI workflow. This MCP Server allows your agent to use the legal name provided during signup to kick off state database searches. If the initial check fails, Mastra's workflow engine uses its built-in retry logic to query `prefill_business` with the company's website. This double-check mechanism keeps your onboarding pipeline running without manual developer intervention.

Conditional Tax Registration Audits

The `list_tax_registrations` tool pulls all state-level tax records associated with a specific corporate entity. Your Mastra AI agent evaluates these tax IDs against your compliance rules to determine if the business is active. If the agent detects missing tax records, it triggers a conditional branch to execute `get_tax_registration` for deeper verification. This ensures your system flags high-risk accounts before they can access your financial platform.

Human-in-the-Loop Document Verification

The `list_documents` tool gathers all Secretary of State filing documents for a target business entity. This workflow pauses execution when it detects complex filing histories, preventing the MCP client from making unverified decisions. By calling `get_document`, the agent retrieves the exact PDF file and presents it to your compliance team. Once approved, the agent continues the automated onboarding process.

Setup guide

Set up Middesk MCP in Mastra AI

Prerequisites

Node.js 18+ and a TypeScript project
@mastra/mcp + @mastra/core packages
Active Vinkius subscription with a valid endpoint token

1

Install dependencies
Run npm install @mastra/mcp @mastra/core plus your preferred model provider (e.g. @ai-sdk/openai).
2

Configure the MCPClient
Create an MCPClient with your Vinkius endpoint as a URL object. Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com.
3

Discover and inject tools
Call mcpClient.listTools() and spread the result into your agent's tools object. All Middesk tools become native Mastra tools.
4

Run with any model
Swap openai("gpt-4o") for any AI SDK-compatible provider. Call agent.generate() and the agent routes tool calls through MCP automatically.

agent.ts

import { MCPClient } from "@mastra/mcp";
import { Agent } from "@mastra/core/agent";
import { openai } from "@ai-sdk/openai";

const mcpClient = new MCPClient({
  id: "middesk-mcp-client",
  servers: {
    "middesk-mcp": {
      url: new URL(
        "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
      ),
    },
  },
});

const agent = new Agent({
  name: "Middesk Agent",
  model: openai("gpt-4o"),
  instructions: "You have access to Middesk tools.",
  tools: {
    ...(await mcpClient.listTools()),
  },
});

const result = await agent.generate(
  "List recent Middesk transactions"
);
console.log(result.text);

Get your connection token →

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.

Why Choose Vinkius

Vinkius connects your tools to AI with real-time monitoring and automatic cost savings — all from one dashboard.

Connect Middesk now

Real-time monitoring

Live

visibility into every interaction

Connect your favorite tools to your AI and see exactly what's happening — every request, every response, in real time.

Built-in savings

60%

lower AI costs

Vinkius compresses data between your apps and your AI automatically. Lower bills every month — no configuration required.

Single dashboard

One

place for every integration

Every tool your AI connects to, managed from a single screen. One account, complete control.

Common questions about Middesk MCP in Mastra AI

Mastra AI uses its workflow engine to configure automatic retries with exponential backoff. If get_business fails due to a state registry timeout, the agent pauses and retries the call before failing the workflow.

Yes, you configure the requireToolApproval option on the agent for get_document. This stops the agent from pulling Secretary of State files until a human compliance officer clicks approve.

You initialize the MCP Server, call listTools(), and spread them directly into the agent's tool array. The agent automatically selects tools like autocomplete_identity based on the user's prompt.

This server supports both Streamable HTTP and SSE transports. Mastra AI auto-detects the transport type when you register the server URL, making deployment to serverless environments straightforward.

All business legal names and downloaded Secretary of State documents go directly from Middesk to your Mastra AI runtime. The Vinkius sandbox executes the MCP Server in an ephemeral environment, ensuring zero data persistence.

Use it with your favorite AI tools

Connect this server to Cursor, Claude, VS Code, and more.

OpenAI Agents SDK sdk-python

Google ADK sdk-python

Pydantic AI sdk-python

Vercel AI SDK sdk-typescript