How to Use the BILL Spend & Expense MCP in Vercel AI SDK

Q: How does the BILL Spend & Expense MCP Server stream data to Vercel AI SDK?

You pass the server URL to createMCPClient and feed its tools into streamText. The system pipes transaction data from BILL straight into your React components without intermediate API endpoints.

Q: Can I use Vercel AI SDK to filter BILL Spend & Expense budgets?

Yes, your agent calls the listbudgets tool and filters the JSON payload directly in the edge runtime. You get clean, sorted budget lists delivered to your UI in real-time.

Q: Does Vercel AI SDK support multi-user views for BILL Spend & Expense?

The SDK routes user-specific queries through listusers to isolate corporate cardholders on your frontend. It matches active sessions with their specific BILL profiles automatically.

Q: How do I handle token expiration with this MCP setup?

You configure the authProvider in your client setup to refresh credentials. This keeps your card and transaction data flowing without manual restarts.

Stream real-time corporate budget and card data directly into your Next.js UI using Vercel AI SDK and this MCP Server.

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Connect BILL Spend & Expense MCP to Vercel AI SDK

Create your Vinkius account to connect BILL Spend & Expense to Vercel AI SDK 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 BILL Spend & Expense with Vercel AI SDK

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Claude

Perplexity

Live Spend Feeds via Vercel AI SDK

The `list_transactions` tool fetches the latest corporate card swipes directly from the BILL platform. Your React components render these transactions as they stream in, bypassing slow loading spinners entirely. Edge functions execute these requests in milliseconds. Users see their actual spend history the moment the AI client finishes parsing the feed.

Instant Budget Auditing

The `list_budgets` tool matches current team allocations against real-time balances in your BILL account. Your custom agent evaluates this data to flag overages instantly. By streaming the output using `streamText`, the interface displays budget charts that populate line-by-line. This keeps financial managers from staring at blank loading screens.

Card and Reimbursement Tracking

The `list_cards` and `list_reimbursements` tools expose active corporate cards and pending employee paybacks. This allows your frontend to display live ledger tables dynamically. Setting up this MCP Server requires just the `createMCPClient` function pointed at your secure endpoint. It handles the financial data transfer safely without exposing master API keys to the client browser.

Setup guide

Set up BILL Spend & Expense 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 BILL Spend & Expense 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 BILL Spend & Expense transactions",
});

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

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 BILL Spend & Expense. 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 BILL Spend & Expense MCP in Vercel AI SDK

You pass the server URL to `createMCPClient` and feed its tools into `streamText`. The system pipes transaction data from BILL straight into your React components without intermediate API endpoints.

Yes, your agent calls the `list_budgets` tool and filters the JSON payload directly in the edge runtime. You get clean, sorted budget lists delivered to your UI in real-time.

The SDK routes user-specific queries through `list_users` to isolate corporate cardholders on your frontend. It matches active sessions with their specific BILL profiles automatically.

You configure the `authProvider` in your client setup to refresh credentials. This keeps your card and transaction data flowing without manual restarts.

This integration never persists your budgets, cards, or reimbursements on third-party databases. The server acts as an ephemeral proxy, passing raw BILL financial data directly to your secure Vercel edge function.

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