Unified.to

PaychexAPIintegration&MCPserver

Deliver real-time HR & Directory faster, close sales deals sooner, and scale without an integration backlog.

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Add Paychex and 77 other pre-built HR & Directory integrations

Real-time data to fuel countless HR use cases

Power AI copilots, insights, predictive analysis, and automation with a modern integration infrastructure that scales alongside you.

hris

Onboarding

Onboard employees and update profiles when roles change.

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hris

Offboarding

Seamlessly integrate employee data to automate the offboarding processess.

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hris

Track PTO

Pull time off (PTO) information to monitor and manage employee leave balances and schedules in real-time.

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Your product
or/and
AI agent
Unified.to
Unified API
or/and
Unified MCP
Paychex
HRIS Employee
HRIS Company
HRIS Location
HRIS Group
HRIS Benefit
HRIS Deduction
Passthrough
HRIS Employee
HRIS Company
HRIS Location
HRIS Group
HRIS Benefit
HRIS Deduction
Passthrough
Your customer's data
on Paychex

Unified API data-models and methods

HRIS Employee
list get update remove
HRIS Company
list get
HRIS Location
list get
HRIS Group
list get
HRIS Benefit
list get
HRIS Deduction
list get
Passthrough
get post put patch delete

114 Unified MCP tools

list all employees6 parameters
retrieve an employee2 parameters
update an employee33 parameters
remove an employee2 parameters
list all companies3 parameters
retrieve a company2 parameters
list all locations5 parameters
retrieve a location2 parameters
list all groups5 parameters
retrieve a group2 parameters
companies 1 parameter
a company2 parameters
company calculation bases2 parameters
company checks6 parameters
company checks2 parameters
company contact types2 parameters
company custom employment types2 parameters
custom fields2 parameters
custom field16 parameters
custom field4 parameters
custom field4 parameters
custom field4 parameters
custom fields categories2 parameters
custom fields category5 parameters
custom fields category4 parameters
custom fields category4 parameters
custom fields category7 parameters
company jobs3 parameters
company job2 parameters
company job5 parameters
company job12 parameters
company job segments2 parameters
company job titles2 parameters
job title4 parameters
company labor assignments3 parameters
company labor assignment5 parameters
company locations3 parameters
company location5 parameters
company organizations3 parameters
company organization5 parameters
company pay components6 parameters
company pay component5 parameters
company pay frequencies3 parameters
company pay periods5 parameters
company pay period4 parameters
company state taxes2 parameters
company workers9 parameters
in progress workers2 parameters
company worker statuses2 parameters
company worker status4 parameters
worker2 parameters
worker2 parameters
worker27 parameters
worker assignments2 parameters
worker checks4 parameters
worker check11 parameters
worker check4 parameters
worker check4 parameters
worker communications2 parameters
worker communication19 parameters
worker communication4 parameters
worker communication4 parameters
worker communication21 parameters
worker compensation2 parameters
worker pay rates3 parameters
worker pay rate13 parameters
worker pay rate5 parameters
worker pay rate4 parameters
worker pay rate15 parameters
worker pay standards2 parameters
worker contacts2 parameters
worker contacts5 parameters
worker contact4 parameters
worker contact4 parameters
worker contacts7 parameters
worker custom fields3 parameters
worker custom field15 parameters
worker custom field5 parameters
worker custom field4 parameters
worker customfield17 parameters
worker direct deposits4 parameters
worker direct deposit11 parameters
worker direct deposits12 parameters
worker direct deposit5 parameters
worker direct deposit5 parameters
worker direct deposit14 parameters
worker federal tax2 parameters
worker federal tax13 parameters
worker federal tax13 parameters
worker i9 status2 parameters
worker pay components7 parameters
worker pay component18 parameters
worker pay components18 parameters
worker pay component4 parameters
worker pay component5 parameters
worker pay component4 parameters
worker pay component20 parameters
worker profile image2 parameters
worker profile image3 parameters
worker profile image2 parameters
worker state tax2 parameters
worker state tax2 parameters
worker statuses2 parameters
worker time off2 parameters
checks by pay period and user2 parameters
pay component to a check20 parameters
pay component of a check4 parameters
pay component of a check22 parameters
get webhook domains
list webhooks
add webhook6 parameters
webhook2 parameters
delete webhook2 parameters
request client access2 parameters

The modern Unified API platform, built differently

Real-time, pass-through

Every request hits the source API live. No caching, no sync jobs, no stale data — just on-demand API reads/writes with native and virtual webhooks for instant updates.

Zero-storage by design

We never store end-customer data. Traffic is stateless and regionalized (US/EU/AU), reducing compliance scope and eliminating data-at-rest risk.

One API, deeply normalized

360+ integrations, 23 categories... Unified objects, endpoints, scopes, and errors—plus raw payload passthrough when you need provider-specific fields.

Custom fields & objects

Go beyond shallow schemas. We support custom fields and read/write on custom objects (e.g., Salesforce) via unified metadata APIs.

AI-ready integrations

Built for AI products: real-time streams for RAG/embeddings and Unified MCP tools that securely grant LLMs controlled integration access.

Predictable pricing, no lock-in

Transparent usage-based pricing that scales with API volume—not customers. Own your credentials and migrate anytime.

Add a Paychex integration to your application in hours

1Test drive integrations

Effortlessly test API calls, explore endpoints, and try out the Paychex integration using synthetic data in our Sandbox environment.

2Authorize connections

Drop in our Authorization component with a single line of code. Your users can then connect and grant access to their Paychex data.

3Start making API calls

Use the Connection ID to interact with Paychex via our unified API. We handle maintenance and updates so you can focus on your product.

Seamless Auth, no extra work

Unified.to removes the complexity of authentication and authorization so you can focus on building your product, not managing auth flows. Our pre-built UI and flexible API handle everything in the background—no extra setup required.

See documentation

Trusted by global product companies and developers to power integrations for innovative AI and SaaS applications

Humi.ca
Paidiem.com
HeroHunt.ai
HireTechLadies.com
Sailes.ai
Foresight
Recital
Talin
Sync2Hire
Humi.ca
Paidiem.com
HeroHunt.ai
HireTechLadies.com
Sailes.ai
Foresight
Recital
Talin
Sync2Hire

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Integrate with all the major hr & directory applications

Unified.to makes it possible to integrate once to a unified API to connect with all the applications your customers use, so you can train AI models, build advanced automation, and expand your market.

Start testing for free

Integrateonce,launchindays

With 368+ pre-built integrations and zero maintenance burden, Unified.to unlocks your team's integration potential, so you can unblock growth.