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Connectors
Connect

Connect to everything your agents need, without writing the infrastructure to get there.

Secure

Enterprise-grade controls to ensure your agent always meets security & compliance standards.

Optimize

Maximise agent efficiency – faster responses, increased accuracy, fewer tokens used.

Use-Cases
Pricing
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Live 38 Actions

Paycor MCP Server
for AI Agents

Connect your AI agent to StackOne's Paycor MCP server and give it 38 MCP tools out of the box. Auth, tool execution, and security all managed.

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Paycor MCP Server
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Coverage

38 Agent Actions

Create, read, update, and delete across Paycor — and extend your agent's capabilities with custom actions.

MCP Actions → Build Actions →

Authentication

Agent Tool Authentication

Per-user OAuth in one call. Your Paycor MCP server gets session-scoped tokens with zero credentials stored on your infra.

Agent Auth →

Security

Agent Protection

Every Paycor tool response scanned for prompt injection in milliseconds — 88.7% accuracy, all running on CPU.

Prompt Injection Defense →

Performance

Max Agent Context. Min Cost.

Free up to 96% of your agent's context window to enhance reasoning and reduce cost, on every Paycor call.

Tools Discovery →

What is the Paycor MCP Server?

A Paycor MCP server lets AI agents read and write Paycor data through the Model Context Protocol — Anthropic's open standard for connecting LLMs to external tools. StackOne's Paycor MCP server ships with 38 pre-built actions, fully extensible via the Connector Builder — plus managed authentication, prompt injection defense, observability, and agent execution runtime. Connect it from MCP clients like Claude Desktop, Claude Code, Cursor, Goose, and VS Code, or from agent frameworks like OpenAI Agents SDK, LangChain, and Vercel AI SDK.

All Paycor MCP Tools

Every action from Paycor's API, ready for your agent. Create, read, update, and delete — scoped to exactly what you need.

Employees

  • Create Employee

    Create a new employee record

  • List Employees

    Get a list of employees for a legal entity

  • Get Employee

    Get detailed information for a specific employee

Time Off Requests

  • Create Time Off Request

    Create a new time off request for a legal entity

  • List Time Off Requests

    Get time off requests for a legal entity

  • Get Time Off Request

    Get a specific time off request by ID

Persons

  • List Persons

    Get a list of persons for a legal entity

  • Get Person

    Get detailed personal information for a specific person

Other (30)

  • Create Employee Emergency Contact

    Add an emergency contact for an employee

  • Add Payroll Hours

    Import payroll hours for a legal entity

  • List Employee Pay Rates

    Get pay rate information for a specific employee

  • List Employee Direct Deposits

    Get direct deposit information for an employee

  • List Employee Deductions

    Get deduction information for an employee

  • List Employee Earnings

    Get earnings information for an employee

  • List Employee Taxes

    Get tax information for an employee

  • List Employee Custom Fields

    Get custom field values for an employee

  • List Employee Pay Stub Documents

    Get pay stub document links for an employee

  • List Employee Pay Stubs

    Get pay stub information for an employee

  • List Employee Certifications

    Get certifications for an employee

  • List Employee Onboarding

    Get onboarding information for employees in a legal entity

  • List Legal Entities

    Get a list of legal entities for a tenant

  • Get Legal Entity

    Get detailed information for a specific legal entity

  • List Work Locations

    Get work locations for a legal entity

  • List Job Titles

    Get job titles for a legal entity

  • List Labor Codes

    Get labor codes for a legal entity

  • List Activity Types

    Get activity types for a legal entity

  • List Departments

    Get departments for a legal entity

  • List Employee Time Off Accruals

    Get time off accrual balances for an employee

  • List Time Off Plans

    Get time off plans for a legal entity

  • List Time Off Types

    Get time off types for a legal entity

  • List Pay Groups

    Get pay groups for a legal entity

  • List Pay Schedules

    Get pay schedules for a legal entity

  • List Legal Entity Earnings

    Get earning codes for a legal entity

  • List Legal Entity Deductions

    Get deduction codes for a legal entity

  • Update Employee Contact

    Update an employee's contact information (email, phone, address)

  • Update Employee Personal Data

    Update an employee's identifying/personal data (name, SSN, suffix, birth date)

  • Update Employee Position

    Update an employee's position data (employment type, work location, department, job title, manager)

  • Update Employee Status

    Update an employee's employment status

Paycor AI Agent Use Cases

Connect your AI agent to Paycor and help your team scale the HR operations they run by hand today.

Employee Onboarding

Use StackOne to connect your AI agent to your HRIS, identity management, and LMS to automate employee onboarding.

View
WorkdayBambooHRPersonioHiBobGustoRipplingOkta360Learning
HR Policy Q&A Chatbot

Use StackOne to connect your AI agent to your HRIS, knowledge base, and messaging tools to automate HR policy Q&A.

View
WorkdayBambooHRPersonioHiBobGustoRipplingSharePointConfluence
Job Posting Distribution

Use StackOne to connect your AI agent to your ATS and job boards to automate job posting distribution.

View
GreenhouseLeverAshbySmartRecruitersWorkableJobviteiCIMSTeamtailor
More HRIS & HCM use cases More Recruiting use cases

Set Up Your Paycor MCP Server in Minutes

One endpoint. Any framework. Your agent is talking to Paycor in under 10 lines of code.

MCP Clients

Claude Desktop setup guide
Claude Code setup guide
Cursor setup guide
Goose setup guide

Agent Frameworks

Claude Desktop
{
  "mcpServers": {
    "stackone": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote@latest",
        "https://api.stackone.com/mcp?x-account-id=<account_id>",
        "--header",
        "Authorization: Basic <YOUR_BASE64_TOKEN>"
      ]
    }
  }
}

Check More HRIS / HCM MCP Servers

UKG Ready

162+ actions

Workday (Rest and Soap)

128+ actions

Factorial

127+ actions

HiBob

123+ actions

Oracle Fusion HCM

120+ actions

Humaans

117+ actions

SAP SuccessFactors

111+ actions

All HRIS / HCM MCP Servers →

Platform Resources

MCP Code Mode: Keeping Tool Responses Out of Agent Context

Anthropic's code_execution processes data already in context. Custom MCP code mode keeps raw tool responses in a sandbox. 14K tokens vs 500.

11 min

Comparing BM25, TF-IDF, and Hybrid Search for MCP Tool Discovery

Benchmarking BM25, TF-IDF, and hybrid search for MCP tool discovery across 916 tools. The 80/20 TF-IDF/BM25 hybrid hits 21% Top-1 accuracy in under 1ms.

10 min

Indirect Prompt Injection Defense for MCP Tools: A Technical Guide

MCP tools that read emails, CRM records, and tickets are indirect prompt injection vectors. Here's how we built a two-tier defense that scans tool results in ~11ms.

12 min

MCP vs A2A: Architecture, Security, and When to Use Each

MCP vs A2A: what each protocol standardizes, how they differ, their shared security risks including indirect prompt injection, and when to use one, both, or a hybrid architecture.

12 min

MCP vs API: What 200+ Connector Builds Taught Us

MCP wraps APIs, it doesn't replace them. After building 200+ connectors that serve both, here's when each approach wins.

14 min read

Paycor MCP Server FAQ

Does StackOne have a Paycor MCP server?
Yes. StackOne offers a hosted Paycor MCP server with 38 pre-built actions, and every action is tested and QA'd by StackOne. Connect it to Claude, Cursor, and any other MCP client, or to any agent framework through the AI Action SDK. It ships with managed agent authentication, prompt injection defense, and tool discovery with server-side execution that preserve your agent's context window and keep reasoning performance.
Paycor MCP server vs direct API integration — what's the difference?
A Paycor MCP server and direct API integration serve different use cases. Direct API integration is for software-to-software — backend code calling Paycor. A Paycor MCP server is for AI agents — MCP clients like Claude and Cursor, plus framework agents built with OpenAI, LangChain, or Vercel AI — discovering and calling Paycor at runtime. StackOne provides both.
How does Paycor authentication work for AI agents?
Paycor authentication for AI agents works through a StackOne Connect Session. Create one via the dashboard or the SDK — you get an auth link and ready-to-paste config for Claude Desktop, Cursor, and other MCP clients. Your user authenticates their own Paycor account; StackOne handles token exchange, storage, and refresh. Credentials never reach the LLM, and each user is isolated via origin_owner_id.
Are Paycor MCP tools vulnerable to prompt injection?
Yes — Paycor MCP tools can be vulnerable to indirect prompt injection. Any tool that reads user-written content — documents, messages, tickets, records, or free-text fields — is a potential vector. StackOne Defender scans every tool response before it enters the agent's context — regex patterns in ~1ms, then a MiniLM classifier in ~4ms. 88.7% accuracy, CPU-only.
What is the context bloat of a Paycor agent and how do I avoid it?
Context bloat happens when Paycor tool schemas and API responses eat your Paycor agent's memory, preventing it from reasoning effectively. A single Paycor query can return a massive JSON response, and connecting multiple tools compounds the problem. Tools Discovery and Code Mode reduce context bloat — loading only relevant tools per query and keeping raw responses out of the agent's context.
Can I limit which actions my Paycor agent can access?
Yes — you can limit which actions your Paycor agent can access directly from the StackOne dashboard. Toggle actions on or off, or restrict them to specific accounts, with no code changes to your agent. Session tokens can be scoped to exact actions so if one leaks, exposure stays contained.
Can I create custom agent actions for my Paycor MCP server?
Yes — you can create custom agent actions for your Paycor MCP server using Connector Builder. It's an integration agent your coding assistant (Claude Code, Cursor, or Copilot) can invoke to research Paycor's API, generate production-ready connector YAML, test against the live API, and validate before you ship.
When should I NOT use a Paycor MCP server?
Skip a Paycor MCP server if your integration is purely software-to-software — direct Paycor API integration is simpler when no AI agent is involved. For deterministic, compliance-critical operations (financial transactions, regulatory reporting), direct API gives you predictable behavior without agent-driven decision-making. MCP shines when AI agents need to dynamically discover and call Paycor actions at runtime.
What AI frameworks and AI clients does the StackOne Paycor MCP server support?
The StackOne Paycor MCP server supports both. MCP clients (paste-and-go apps): Claude Desktop, Claude Code, Cursor, VS Code, Goose. Agent frameworks (code SDKs you build with): OpenAI Agents SDK, Anthropic, Vercel AI, Google ADK, CrewAI, Pydantic AI, LangChain, LangGraph, Azure AI Foundry.

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All the tools you need to build and scale AI agent integrations, with best-in-class connectivity, execution, and security.

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