Bring Payroll
to LlamaIndex
Create your Vinkius account to connect OnPay to LlamaIndex 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.
Compatible with every major AI agent and IDE
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
- Subscribe to this server
- Enter your OnPay API Token from your management panel
- Start managing your payroll operations from Claude, Cursor, or any MCP client
Built-in capabilities (8)
Get general company information
Get employee details
Get transaction details
List all employees
List accounting item codes
List payroll schedules
List subscriptions
List payment transactions
Why LlamaIndex?
LlamaIndex agents combine OnPay tool responses with indexed documents for comprehensive, grounded answers. Connect 8 tools through Vinkius and query live data alongside vector stores and SQL databases in a single turn. ideal for hybrid search, data enrichment, and analytical workflows.
- —
Data-first architecture: LlamaIndex agents combine OnPay tool responses with indexed documents for comprehensive, grounded answers
- —
Query pipeline framework lets you chain OnPay tool calls with transformations, filters, and re-rankers in a typed pipeline
- —
Multi-source reasoning: agents can query OnPay, a vector store, and a SQL database in a single turn and synthesize results
- —
Observability integrations show exactly what OnPay tools were called, what data was returned, and how it influenced the final answer
OnPay in LlamaIndex
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.

* 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
Over 4,000 integrations ready for AI agents
Explore a vast library of pre-built integrations, optimized and ready to deploy.
Connect securely in under 30 seconds
Generate tokens to authenticate and link external services in a single step.
Complete visibility into every agent action
Audit live requests, latency, success rates, and active security compliance policies.
Optimize spending and track token ROI
Analyze real-time token consumption and cost metrics detailed by connection.




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.
OnPay and 4,000+ other AI tools. No hosting, no code, ready to use.
Professionals who connect OnPay to LlamaIndex 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.
Raw MCP | Vinkius | |
|---|---|---|
| Ready-to-use MCPs | Find and configure each manually | 4,000+ MCPs ready to use |
| Connection Setup | Manual coding & server setup | 1-click instant connection |
| Server Hosting | You host it yourself (needs 24/7 uptime) | 100% hosted & managed by Vinkius |
| Security & Privacy | Stored in plaintext config files | Bank-grade encrypted vault |
| Activity Visibility | Blind execution (no logs or tracking) | Live dashboard with real-time logs |
| Cost Control | Runaway AI token spend risk | Automatic budget limits |
| Revoking Access | Must delete files or code to stop | 1-click disconnect button |
How Vinkius secures
OnPay for LlamaIndex
Every request between LlamaIndex 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.
Frequently asked questions
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.
How does LlamaIndex connect to MCP servers?
Use the MCP client adapter to create a connection. LlamaIndex discovers all tools and wraps them as query engine tools compatible with any LlamaIndex agent.
Can I combine MCP tools with vector stores?
Yes. LlamaIndex agents can query OnPay tools and vector store indexes in the same turn, combining real-time and embedded data for grounded responses.
Does LlamaIndex support async MCP calls?
Yes. LlamaIndex's async agent framework supports concurrent MCP tool calls for high-throughput data processing pipelines.
BasicMCPClient not found
Install: pip install llama-index-tools-mcp
Explore More MCP Servers
View all →
Constant Contact
10 toolsEquip your AI agent to construct, analyze, and dispatch robust email marketing campaigns seamlessly through Constant Contact.

Circle.so
8 toolsManage online communities via Circle — track members, monitor posts, and manage spaces directly from any AI agent.

Text Diff Engine
1 toolsExact character-by-character string comparison. Stop relying on LLM summaries and get absolute text diffs for code and contracts.

ECB Discovery — Universal Statistical Data Access
2 toolsExplore the complete ECB statistical catalog: browse all available dataflows (datasets) and query any ECB SDMX dataset with custom series keys — from exchange rates and monetary aggregates to banking supervision and payment statistics.
