4,000+ servers built on MCP Fusion
Vinkius
OpenAI Agents SDKSDK
OpenAI Agents SDK
Why use freee MCP Server with OpenAI Agents SDK?

Bring Tax Compliance
to OpenAI Agents SDK

Create your Vinkius account to connect freee to OpenAI Agents SDK and start using all 9 AI tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code. No hosting, no server setup — just connect and start using.

MCP Inspector GDPR Free for Subscribers
Get DealGet PartnerList AccountsList DealsList ExpensesList InvoicesList PartnersList TaxesList Walletables
ChatGPT Claude Perplexity

Compatible with every major AI agent and IDE

ClaudeClaude
ChatGPTChatGPT
CursorCursor
GeminiGemini
WindsurfWindsurf
VS CodeVS Code
JetBrainsJetBrains
VercelVercel
+ other MCP clients
freee

What is the 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.

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

How it works

  1. Subscribe to this server
  2. Enter your freee Access Token and Company ID (found in freee Developer Console and Business Settings)
  3. Start managing your Japanese business from Claude, Cursor, or any MCP-compatible client

Who is this for?

  • Business Owners in Japan — monitor company cash flow and audit invoices without navigating the freee web UI
  • Accounting Teams — verify tax code mappings and manage business partner records using natural language
  • Ops Managers — track employee expense applications and verify settlement statuses in real-time
  • Developers — test and debug Japanese accounting API integrations and verify financial schemas through natural conversation

Built-in capabilities (9)

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

Why OpenAI Agents SDK?

The OpenAI Agents SDK auto-discovers all 9 tools from freee through native MCP integration. Build agents with built-in guardrails, tracing, and handoff patterns. chain multiple agents where one queries freee, another analyzes results, and a third generates reports, all orchestrated through Vinkius.

  • Native MCP integration via MCPServerSse, pass the URL and the SDK auto-discovers all tools with full type safety

  • Built-in guardrails, tracing, and handoff patterns let you build production-grade agents without reinventing safety infrastructure

  • Lightweight and composable: chain multiple agents and MCP servers in a single pipeline with minimal boilerplate

  • First-party OpenAI support ensures optimal compatibility with GPT models for tool calling and structured output

O
See it in action

freee in OpenAI Agents SDK

AI AgentVinkius
High Security·Kill Switch·Plug and Play
Enterprise Security

Why run freee with Vinkius?

The freee connection runs on our fully managed, secure cloud infrastructure. We handle the hosting, maintenance, and security so you don't have to deal with servers or code. All 9 tools are ready to work instantly without any complex setup.

You stay in complete control of your data. Your AI only accesses the information you approve, keeping your sensitive passwords and private details completely safe. Plus, with automatic optimizations, your AI works faster and more efficiently.

View full freee details →
freee
Fully ManagedNo server setup
Plug & PlayNo coding needed
SecurePrivacy protected
PrivateYour data is safe
Cost ControlBudget limits
Control1-click disconnect
Auto-UpdatesMaintenance free
High SpeedOptimized for AI
Reliable99.9% uptime
Your credentials and connection tokens are fully encrypted

* Every connection is hosted and maintained by Vinkius. We handle the security, updates, and infrastructure so you don't have to write code or manage servers. See our infrastructure

01 / Catalog

Over 4,000 integrations ready for AI agents

Explore a vast library of pre-built integrations, optimized and ready to deploy.

02 / Credentials

Connect securely in under 30 seconds

Generate tokens to authenticate and link external services in a single step.

03 / Guardian

Complete visibility into every agent action

Audit live requests, latency, success rates, and active security compliance policies.

04 / FinOps

Optimize spending and track token ROI

Analyze real-time token consumption and cost metrics detailed by connection.

Over 4,000 integrations ready for AI agents
Connect securely in under 30 seconds
Complete visibility into every agent action
Optimize spending and track token ROI

Explore our live AI Agents Analytics dashboard to see it all working

This dashboard is included when you connect freee using Vinkius. You will never be left in the dark about what your AI agents are doing with your tools.

Why Vinkius

freee and 4,000+ other AI tools. No hosting, no code, ready to use.

Professionals who connect freee to OpenAI Agents SDK through Vinkius don't need to write code, manage servers, or worry about security. Everything is pre-configured, secure, and runs automatically in the background.

4,000+MCP Integrations
<40msResponse time
100%Fully managed
Raw MCP
Vinkius
Ready-to-use MCPsFind and configure each manually4,000+ MCPs ready to use
Connection SetupManual coding & server setup1-click instant connection
Server HostingYou host it yourself (needs 24/7 uptime)100% hosted & managed by Vinkius
Security & PrivacyStored in plaintext config filesBank-grade encrypted vault
Activity VisibilityBlind execution (no logs or tracking)Live dashboard with real-time logs
Cost ControlRunaway AI token spend riskAutomatic budget limits
Revoking AccessMust delete files or code to stop1-click disconnect button
The Vinkius Advantage

How Vinkius secures freee for OpenAI Agents SDK

Every request between OpenAI Agents SDK and freee is protected by our secure gateway. We automatically keep your sensitive data private, prevent unauthorized access, and let you disconnect instantly at any time.

< 40msCold start
Ed25519Signed audit chain
60%Token savings
FAQ

Frequently asked questions

01

Can my agent list all unpaid invoices in freee?

Yes. Use the 'list_invoices' tool. The agent retrieves explicitly attached invoice states, allowing you to filter for 'unpaid' or 'overdue' status to monitor your tenant's AR limits flawlessly.

02

How do I check the details of a specific business partner via chat?

Use the 'get_partner' tool. Provide the Partner ID. Your agent will retrieve the strict physical mapping from the freee address book, including vendor/customer profiles and tax ID metadata.

03

Can I see my connected bank accounts and their balances through the agent?

Absolutely. The 'list_walletables' tool identifies connected physical bank accounts, credit cards, and cash repositories. You can query current balances and sync states natively within your chat context.

04

How does the OpenAI Agents SDK connect to MCP?

Use MCPServerSse(url=...) to create a server connection. The SDK auto-discovers all tools and makes them available to your agent with full type information.

05

Can I use multiple MCP servers in one agent?

Yes. Pass a list of MCPServerSse instances to the agent constructor. The agent can use tools from all connected servers within a single run.

06

Does the SDK support streaming responses?

Yes. The SDK supports SSE and Streamable HTTP transports, both of which work natively with Vinkius.

07

MCPServerStreamableHttp not found

Ensure you have the latest version: pip install --upgrade openai-agents

08

Agent not calling tools

Make sure your prompt explicitly references the task the tools can help with.

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