freee MCP Server for Vercel AI SDK 9 tools — connect in under 2 minutes
The Vercel AI SDK is the TypeScript toolkit for building AI-powered applications. Connect freee through Vinkius and every tool is available as a typed function. ready for React Server Components, API routes, or any Node.js backend.
ASK AI ABOUT THIS MCP SERVER
Vinkius supports streamable HTTP and SSE.
import { createMCPClient } from "@ai-sdk/mcp";
import { generateText } from "ai";
import { openai } from "@ai-sdk/openai";
async function main() {
const mcpClient = await createMCPClient({
transport: {
type: "http",
// Your Vinkius token. get it at cloud.vinkius.com
url: "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp",
},
});
try {
const tools = await mcpClient.tools();
const { text } = await generateText({
model: openai("gpt-4o"),
tools,
prompt: "Using freee, list all available capabilities.",
});
console.log(text);
} finally {
await mcpClient.close();
}
}
main();
* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure
About freee MCP Server
Connect your freee (Accounting/HR) account to any AI agent and take full control of your Japanese business operations and general ledger through natural conversation.
The Vercel AI SDK gives every freee tool full TypeScript type inference, IDE autocomplete, and compile-time error checking. Connect 9 tools through Vinkius and stream results progressively to React, Svelte, or Vue components. works on Edge Functions, Cloudflare Workers, and any Node.js runtime.
What you can do
- Accounting Deal Orchestration — Extract explicit general ledger accounting entries including income, expense, and journal boundaries mapped to your Company ID natively
- Invoice State Auditing — Retrieve explicitly attached invoice statuses (sent, unsent, paid, overdue) to resolve your tenant's Accounts Receivable limits limitlessly
- Partner & Address Book Control — Enumerate official business counterparts linking precise vendor, customer, and tax ID profiles synchronously
- Expense Management — Analyze explicit expense claims submitted by employees and track managerial approval states before final settlement flawlessly
- Financial Account Oversight — Identify connected physical bank accounts, credit cards, and offline cash repositories tracked in your freee instance securely
- Tax Compliance Mapping — Execute bulk iterations tracking explicitly registered Japanese Tax mappings evaluating 8%, 10%, and reduced rates synchronously
- Deal Detail Inspection — Fetch strict sub-entry details for specific deals to view settlement flags and connected bank sync boundaries natively
The freee MCP Server exposes 9 tools through the Vinkius. Connect it to Vercel AI SDK in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.
How to Connect freee to Vercel AI SDK via MCP
Follow these steps to integrate the freee MCP Server with Vercel AI SDK.
Install dependencies
Run npm install @ai-sdk/mcp ai @ai-sdk/openai
Replace the token
Replace [YOUR_TOKEN_HERE] with your Vinkius token
Run the script
Save to agent.ts and run with npx tsx agent.ts
Explore tools
The SDK discovers 9 tools from freee and passes them to the LLM
Why Use Vercel AI SDK with the freee MCP Server
Vercel AI SDK provides unique advantages when paired with freee through the Model Context Protocol.
TypeScript-first: every MCP tool gets full type inference, IDE autocomplete, and compile-time error checking out of the box
Framework-agnostic core works with Next.js, Nuxt, SvelteKit, or any Node.js runtime. same freee integration everywhere
Built-in streaming UI primitives let you display freee tool results progressively in React, Svelte, or Vue components
Edge-compatible: the AI SDK runs on Vercel Edge Functions, Cloudflare Workers, and other edge runtimes for minimal latency
freee + Vercel AI SDK Use Cases
Practical scenarios where Vercel AI SDK combined with the freee MCP Server delivers measurable value.
AI-powered web apps: build dashboards that query freee in real-time and stream results to the UI with zero loading states
API backends: create serverless endpoints that orchestrate freee tools and return structured JSON responses to any frontend
Chatbots with tool use: embed freee capabilities into conversational interfaces with streaming responses and tool call visibility
Internal tools: build admin panels where team members interact with freee through natural language queries
freee MCP Tools for Vercel AI SDK (9)
These 9 tools become available when you connect freee to Vercel AI SDK via MCP:
get_deal
Get deal details
get_partner
Get partner details
list_accounts
List all account items
list_deals
List all accounting deals (transactions)
list_expenses
List expense applications
list_invoices
List all invoices
list_partners
List all business partners
list_taxes
List tax codes
list_walletables
List bank accounts and wallets
Example Prompts for freee in Vercel AI SDK
Ready-to-use prompts you can give your Vercel AI SDK agent to start working with freee immediately.
"List the last 5 accounting deals in freee"
"Show me pending expense applications"
"What are my active bank accounts in freee?"
Troubleshooting freee MCP Server with Vercel AI SDK
Common issues when connecting freee to Vercel AI SDK through the Vinkius, and how to resolve them.
createMCPClient is not a function
npm install @ai-sdk/mcpfreee + Vercel AI SDK FAQ
Common questions about integrating freee MCP Server with Vercel AI SDK.
How does the Vercel AI SDK connect to MCP servers?
createMCPClient from @ai-sdk/mcp and pass the server URL. The SDK discovers all tools and provides typed TypeScript interfaces for each one.Can I use MCP tools in Edge Functions?
Does it support streaming tool results?
useChat and streamText that handle tool calls and display results progressively in the UI.Connect freee with your favorite client
Step-by-step setup guides for every MCP-compatible client and framework:
Anthropic's native desktop app for Claude with built-in MCP support.
AI-first code editor with integrated LLM-powered coding assistance.
GitHub Copilot in VS Code with Agent mode and MCP support.
Purpose-built IDE for agentic AI coding workflows.
Autonomous AI coding agent that runs inside VS Code.
Anthropic's agentic CLI for terminal-first development.
Python SDK for building production-grade OpenAI agent workflows.
Google's framework for building production AI agents.
Type-safe agent development for Python with first-class MCP support.
TypeScript toolkit for building AI-powered web applications.
TypeScript-native agent framework for modern web stacks.
Python framework for orchestrating collaborative AI agent crews.
Leading Python framework for composable LLM applications.
Data-aware AI agent framework for structured and unstructured sources.
Microsoft's framework for multi-agent collaborative conversations.
Connect freee to Vercel AI SDK
Get your token, paste the configuration, and start using 9 tools in under 2 minutes. No API key management needed.