How to Use the Highnote MCP in Mastra AI

Build automated financial workflows with Mastra AI and the Highnote MCP server.

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Connect Highnote MCP to Mastra AI

Create your Vinkius account to connect Highnote 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.

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Setup Highnote with Mastra AI

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Automated ledger reconciliation with Mastra AI

Create workflows that automatically trigger `list_ledger_entries` to cross-reference transactions. If the agent detects a mismatch, it can flag the entry for your review. This automates the tedious parts of accounting. You define the logic, and the agent handles the manual lookups against the Highnote database.

Conditional card management in Mastra AI

Set up branching logic based on `list_payment_cards` output. If a card is flagged as suspicious, the agent can automatically invoke `update_card_status` to freeze it. You gain a proactive security layer. The agent reacts to events faster than any manual process could.

Programmatic account holder lookup in Mastra AI

Use `list_account_holders` to map incoming support tickets to specific Highnote accounts. Your agents can then pull account data to answer questions instantly. It removes the friction of searching through databases. The agent does the heavy lifting, connecting the user to their financial records.

Setup guide

Set up Highnote 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 Highnote 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: "highnote-mcp-client",
  servers: {
    "highnote-mcp": {
      url: new URL(
        "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
      ),
    },
  },
});

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

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

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Why Choose Vinkius

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Common questions about Highnote MCP in Mastra AI

Yes. You build a workflow that monitors for fraud and triggers `update_card_status` automatically when specific conditions are met.

Yes. You can require tool approval for sensitive operations like modifying card status, ensuring you keep control over financial account changes.

The framework includes retry logic. You can define backoff strategies if the Highnote API faces rate limits during peak transaction times.

The server returns raw data from the ledger. You can build validation steps into your workflow to ensure the figures match your internal records.

We isolate your financial data within the V8 sandbox. Each request for ledger entries is ephemeral, and no data is stored after the workflow completes.

Use it with your favorite AI tools

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