UKG Pro & Ready Workforce Management API

UKG (Ultimate Kronos Group) REST API for workforce management and HCM platform. Enables AI agents to manage workforce scheduling and shift optimization automation, handle time and attendance data collection and approval workflows, access payroll processing and gross-to-net calculation, retrieve workforce analytics and labor cost reporting, manage employee self-service and manager workflow automation, handle absence and leave management, access compliance reporting for labor law requirements, retrieve talent management and performance data, manage organizational hierarchy and job data, and integrate workforce management with ERP, finance, and operational planning systems.

Evaluated Mar 07, 2026 (0d ago) vcurrent
Homepage ↗ Developer Tools ukg kronos workforce-management hcm scheduling time-tracking payroll hr
⚙ Agent Friendliness
57
/ 100
Can an agent use this?
🔒 Security
79
/ 100
Is it safe for agents?
⚡ Reliability
68
/ 100
Does it work consistently?

Score Breakdown

⚙ Agent Friendliness

MCP Quality
20
Documentation
72
Error Messages
68
Auth Simplicity
72
Rate Limits
62

🔒 Security

TLS Enforcement
92
Auth Strength
80
Scope Granularity
72
Dep. Hygiene
70
Secret Handling
78

Workforce management and HCM. SOC1, SOC2, ISO27001, GDPR, HIPAA. OAuth2. US/EU/CA. Employee and workforce data.

⚡ Reliability

Uptime/SLA
72
Version Stability
70
Breaking Changes
65
Error Recovery
65
AF Security Reliability

Best When

A mid-market or enterprise (particularly in healthcare, retail, manufacturing) using UKG Pro or Ready wants AI agents to automate workforce scheduling, time and attendance, payroll, labor compliance, and operational analytics.

Avoid When

LEGAL+COMPLIANCE RISK: Automated workforce scheduling must comply with predictive scheduling laws, overtime regulations, and break requirements by jurisdiction. Automated payroll has IRS and state tax consequences. Labor law compliance varies significantly by state and industry.

Use Cases

  • Optimizing workforce scheduling from labor management agents
  • Automating time and attendance approval from manager workflow agents
  • Processing payroll and labor cost reporting from finance automation agents
  • Managing absence and leave workflows from HR operations agents

Not For

  • Very small businesses without enterprise workforce management complexity
  • Simple payroll without advanced scheduling and labor compliance needs
  • Global EOR without US-centric workforce management foundation

Interface

REST API
Yes
GraphQL
No
gRPC
No
MCP Server
No
SDK
No
Webhooks
Yes

Authentication

Methods: oauth
OAuth: Yes Scopes: Yes

UKG uses OAuth 2.0 for API access. Service account credentials with workforce, payroll, and HR scopes. UKG Developer portal with API documentation. Webhooks for time, scheduling, and HR events. UKG Marketplace for partner integrations. Separate APIs for UKG Pro (formerly UltiPro) and UKG Ready (formerly Kronos Workforce Ready).

Pricing

Model: enterprise
Free tier: No
Requires CC: No

Lowell, Massachusetts and Weston, Florida. Founded 2020 (merger of Ultimate Software and Kronos). Private. $3B+ annual revenue. 70,000+ customers globally. Strong in healthcare, retail, manufacturing, and hospitality. UKG Pro for mid-enterprise HCM, UKG Ready for SMB workforce management. Competes with ADP, Ceridian, and Workday.

Agent Metadata

Pagination
offset
Idempotent
Partial
Retry Guidance
Not documented

Known Gotchas

  • LEGAL RISK: Automated scheduling must handle predictive scheduling laws and overtime rules by jurisdiction — automated violation creates penalties
  • Two separate product APIs — UKG Pro and UKG Ready have different API surfaces; verify which product is in use
  • No public MCP server — OAuth2 REST API requiring customer relationship
  • Healthcare focus — UKG has strong healthcare vertical features; APIs may expose clinical scheduling specifics
  • UKG Marketplace partner approval — integration apps require UKG review and certification
  • Complex scheduling data model — shift bids, self-scheduling, and manager overrides have interdependencies

Alternatives

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Scores are editorial opinions as of 2026-03-07.

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