4,000+ servers built on MCP Fusion
Vinkius
LangChainFramework
Why use OnPay MCP Server with LangChain?

Bring Payroll
to LangChain

Create your Vinkius account to connect OnPay to LangChain and start using all 8 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 Company InfoGet EmployeeGet TransactionList EmployeesList Item CodesList Pay SchedulesList SubscriptionsList Transactions
ChatGPT Claude Perplexity

Compatible with every major AI agent and IDE

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

What is the OnPay MCP Server?

Connect your OnPay account to empower your AI agents with payroll and HR capabilities. This server provides programmatic access to the OnPay API, allowing for seamless management of employee profiles, payment transactions, and recurring pay schedules.

What you can do

  • Employee Directory — List and inspect complete employee profiles and records
  • Transaction Monitoring — Access historical payment transactions and statuses in real-time
  • Payroll Orchestration — Monitor upcoming pay schedules and cycles for your company
  • Subscription Tracking — View active and past subscriptions managed through the platform
  • Accounting Integration — Retrieve item codes and company settings for financial reconciliation

How it works

  1. Subscribe to this server
  2. Enter your OnPay API Token from your management panel
  3. Start managing your payroll operations from Claude, Cursor, or any MCP client

Built-in capabilities (8)

get_company_info

Get general company information

get_employee

Get employee details

get_transaction

Get transaction details

list_employees

List all employees

list_item_codes

List accounting item codes

list_pay_schedules

List payroll schedules

list_subscriptions

List subscriptions

list_transactions

List payment transactions

See what your AI agent can do with OnPay

Why LangChain?

LangChain's ecosystem of 500+ components combines seamlessly with OnPay through native MCP adapters. Connect 8 tools via Vinkius and use ReAct agents, Plan-and-Execute strategies, or custom agent architectures. with LangSmith tracing giving full visibility into every tool call, latency, and token cost.

  • —

    The largest ecosystem of integrations, chains, and agents. combine OnPay MCP tools with 500+ LangChain components

  • —

    Agent architecture supports ReAct, Plan-and-Execute, and custom strategies with full MCP tool access at every step

  • —

    LangSmith tracing gives you complete visibility into tool calls, latencies, and token usage for production debugging

  • —

    Memory and conversation persistence let agents maintain context across OnPay queries for multi-turn workflows

See it in action

OnPay in LangChain

AI Agent→Vinkius
High Security·Kill Switch·Plug and Play
Enterprise Security

Why run OnPay with Vinkius?

The OnPay 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 8 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 OnPay details →
OnPay
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 OnPay using Vinkius. You will never be left in the dark about what your AI agents are doing with your tools.

Explore Analytics
Why Vinkius

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

Professionals who connect OnPay to LangChain 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
View step-by-step setup guide for LangChain →
The Vinkius Advantage

How Vinkius secures OnPay for LangChain

Every request between LangChain and OnPay 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

How do I get an OnPay API Token?

Log in to your OnPay management panel, and navigate to Settings > API to generate a static API token.

02

How does LangChain connect to MCP servers?

Use langchain-mcp-adapters to create an MCP client. LangChain discovers all tools and wraps them as native LangChain tools compatible with any agent type.

03

Which LangChain agent types work with MCP?

All agent types including ReAct, OpenAI Functions, and custom agents work with MCP tools. The tools appear as standard LangChain tools after the adapter wraps them.

04

Can I trace MCP tool calls in LangSmith?

Yes. All MCP tool invocations appear as traced steps in LangSmith, showing input parameters, response payloads, latency, and token usage.

05

MultiServerMCPClient not found

Install: pip install langchain-mcp-adapters

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