How to Use the Working Capital Calculator MCP in Vercel AI SDK

Stream real-time Cash Conversion Cycle and working capital metrics into your React UI using the Vercel AI SDK.

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…and any MCP-compatible client

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Connect Working Capital Calculator MCP to Vercel AI SDK

Create your Vinkius account to connect Working Capital Calculator to Vercel AI SDK — we handle the hosting, security, and runtime updates so you don't have to. No server setup required.

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Setup Working Capital Calculator with Vercel AI SDK

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Stream MCP Tool Results to React

`calculate_cash_conversion_cycle` pulls the exact number of days your cash sits trapped in inventory and receivables. You pass the days inventory outstanding, days sales outstanding, and days payable outstanding. The MCP returns a single integer representing your cash conversion cycle. Your Vercel AI SDK frontend streams this number straight to the dashboard. Users watch the days tick down in real time as they adjust input sliders. There are no loading spinners. Just live math updating on the screen.

Compute Monetary Need in Real Time

`calculate_monetary_working_capital` translates that timeframe into actual dollars. You feed it the cycle duration and your company turnover. It spits out the exact monetary value tied up in your daily operations. This matters when you need to show the board how much cash is bleeding out. The SDK streams the dollar amount directly into your financial widgets. Stakeholders see the liquidity gap widen or shrink the moment they change the turnover variable.

Fetch Full Cycle Summary via Edge

`get_financial_cycle_summary` dumps the entire financial profile in one call. It returns every constituent period and the final calculated values together. You get DIO, DSO, DPO, the cycle days, and the monetary need all at once. The AI SDK takes this JSON payload and maps it to your React state. Your UI renders a complete breakdown without making three separate network requests. The MCP keeps your Edge Functions lean and your frontend fast.

Setup guide

Set up Working Capital Calculator MCP in Vercel AI SDK

Prerequisites

Node.js 18+ and a TypeScript project
ai + @modelcontextprotocol/sdk packages
Active Vinkius subscription with a valid endpoint token

1

Install dependencies

Run npm install ai @modelcontextprotocol/sdk plus your preferred model provider (e.g. @ai-sdk/openai).
2

Create the Streamable HTTP transport

Use StreamableHTTPClientTransport with your Vinkius endpoint URL. Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com.
3

Discover and use tools

Call mcpClient.tools() to auto-discover all Working Capital Calculator tools. Pass them directly to generateText() or streamText() — no manual schema definitions needed.
4

Works with any model provider

Swap openai("gpt-4o") for any AI SDK provider — Anthropic, Google, Mistral. The MCP tools work identically across all supported models.

index.ts

import { experimental_createMCPClient as createMCPClient } from "ai";
import { StreamableHTTPClientTransport } from "@modelcontextprotocol/sdk/client/streamableHttp";
import { generateText } from "ai";
import { openai } from "@ai-sdk/openai";

const transport = new StreamableHTTPClientTransport(
  new URL("https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp")
);

const mcpClient = await createMCPClient({ transport });
const tools = await mcpClient.tools();

const { text } = await generateText({
  model: openai("gpt-4o"),
  tools,
  prompt: "List recent Working Capital Calculator transactions",
});

console.log(text);
await mcpClient.close();

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Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Working Capital Calculator. 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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Common questions about Working Capital Calculator MCP in Vercel AI SDK

You install the MCP client and pass the tools directly to your streamText function. The SDK handles the HTTP transport and streams the tool results to your frontend as they generate.

Yes. The MCP uses standard HTTP transport, which works perfectly in Edge environments. Just make sure to close the client connection when the request finishes.

It does. You can pass an authProvider to the MCP client configuration. This lets your end users authenticate with their own financial data providers securely.

You need days inventory outstanding, days sales outstanding, days payable outstanding, and your total company turnover. The tools use these to compute the cycle and monetary values.

The MCP only transmits days inventory outstanding, days sales outstanding, days payable outstanding, and total company turnover. It doesn't send raw ledger data or personally identifiable information.

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