Set up the organization once.
Add employees, departments, locations, shifts and policies, so attendance, leave and approvals follow the rules you set.
Before day one
Open Core HRby CZ App Studio
HR and field work, together.
Self-hosted. Source included.
Open Core HR manages employee records, attendance, leave and approvals, and runs field work with customer visits, journey plans and live GPS tracking. Run it for your company, or launch it as your own subscription service.
AI-agent native
Set it up yourself, on your laptop or your server, with Claude Code, Cursor, Codex, Copilot or Gemini. Free, no installation plan needed. See how
- Claude
- ChatGPT
- Cursor
- GitHub Copilot
- Gemini
- Grok
- Perplexity
Full source code
Self-hosted
25+ languages, RTL ready
Add-ons that fit your company
A better rhythm for HR
Less chasing. More time for people.
Let employees serve themselves.
Check in from the app, request leave, submit expenses and follow every request without emailing HR.
Every working day
Decide with the full picture.
Approve requests from one inbox, review attendance and leave, and export the reports your role allows.
For HR and managers
Everything your HR and field teams use, in one product
Each area has its own page with every feature, real screens and which parts are add-ons.
People and HR records
Employee records, organisation, dashboards and self-service
Time and attendance
Shifts, check-in rules, geofence, selfie and review
Leave and time off
Leave types, balances, team calendar and comp-offs
Field sales and operations
Plans, visits, live tracking, orders and collections
AI features
Writing help, Ask HR, HR data questions and receipt scanning on your own AI provider
Payroll, expenses and loans
Expense claims, pay runs, payslips and employee loans
Lifecycle, recruitment and compliance
Hiring, onboarding, documents, policies, warnings and assets
Communication and Microsoft 365
Inbox, calendar, chat, calls, feed and Outlook
Mobile app
One Android and iOS app for HR and field staff, on phones and tablets
Admin, platform and integrations
Roles, settings, languages, backups, imports and webhooks
Run it as SaaS
Workspaces, plans, signup, billing and subscriptions
Who it is for
Office, site or on the road.
One platform for HR and field work.
Open Core HR includes field operations in Core, so the people visiting customers and working on site share the same records, attendance and approvals as everyone else.
Sales & distribution
Know where the team is and what they sold.
Plan customer visits and track attendance in Core. Add Sales Orders, Collections and Targets when your field team sells.
Service & maintenance
From the job list to the timesheet.
Record visits with notes and photos, then add Tasks for assigned jobs and Forms & Surveys for site checks.
Construction & site teams
A clear picture across every site.
Check people in against approved site locations, manage shifts and keep leave and expenses moving while they are away from the office.
Delivery & logistics
Stay in the loop, stop by stop.
Follow work sessions on a live map, review routes and keep claims and approvals in the same app your drivers already use.
Follow a field rep’s day, from first check-in to last visit.
Journey plans tell reps where to go. Check-ins prove they were there. The timeline shows the whole day on a map, with orders and payments captured along the way.
- Checked in to shiftOrionis Tower · inside the office geofence
- Canary Wharf Medical Centre35 min · order £1,240
- Harbour Point Facilities40 min · payment collected
- Kings Cross Office Park30 min · follow-up booked
- Camden Market Foods45 min · store audit form
- Checked outShift ended · 8 h 58 min
AI inside the product
AI that does the chores, on the AI you choose.
Draft HR texts in seconds, let employees ask HR at any hour, ask your HR data for a figure and fill expense claims from a receipt photo on the road. Connect Claude, Gemini, OpenAI or a model on your own servers. Nothing switches on until you do.
- AI writing assistantDraft, improve and translate HR texts Free
- HR assistantAnswers from your policies and own records $99.00
- Receipt scanningExpense claims filled from a photo $79.00
- Ask your HR dataHeadcount, leave, attendance and expense figures with their source $99.00
- Your provider, your key
- Self-hosted models keep data on your network
- Off until you switch it on
- Limits by department and person
Ask HR
Can I take Friday 20 November off for my sister's wedding?
Yes. You have 9 days of annual leave left, and annual leave needs 3 days' notice, so Friday is fine. I have prepared the request for you.
Leave policy · Annual leaveLeave request ready to send
- Annual leave
- Fri 20 Nov
- 1 day
Answered from your policies. Nothing is sent until you choose.
Your company. Your toolkit.
A complete core.
Room to grow.
Start with everyday HR and field work. Add payroll, recruitment and onboarding, documents, chat and calls, Microsoft 365 and more as you grow.
Browse the add-onsOpen Core HRPeople, time, money and field work.
Included in CoreSeparate one-time licenses. One connected workspace.
AI-assisted setup, free
Let your AI agent install it for you.
Open Core HR ships with agent-readable documentation, copy-and-paste install prompts and llms.txt. Point the AI tool you already use at our docs and it walks the setup with you, on your own computer to try it out or on your server to go live, from environment checks to the first admin login. No charge, ever.
- Works with
- Claude
- ChatGPT
- Cursor
- GitHub Copilot
- Gemini
- Grok
- Perplexity
- Agent-ready documentation
Every guide is available as plain Markdown and in llms.txt, so coding agents read exactly what you read.
- One prompt to install
Paste our install prompt into Claude Code, Cursor, Codex or Copilot and your agent handles the setup steps, locally for a trial or on your server for production.
- Humans when you want them
Prefer our engineers to install, build your mobile apps and train your team? Choose an installation plan.