HR, payroll and shifts
Connect When I Work to Hypamoon
Possible, with help from When I Work. The API is documented, but you cannot just create a key: access goes through When I Work first.
PossibleThe check
Three questions about the API of When I Work, answered from its own docs.
- Public API docs
- Yes. Public REST API documentation. Read the docs
- A key you create yourself
- No. An admin e-mails an access request with the intended use; the API depends on the plan type. Integration partners use the partners form. help.wheniwork.com
- Versions or a changelog
- Not confirmed.
- How it signs in
- A developer key in the W-Key header plus a user's login gives a token, sent as a Bearer token.
- Webhooks
- Not confirmed.
- Hosting
- Cloud
- Condition
- Request the developer key from When I Work; the plan must include API access.
What you can build
Show today's shifts and who clocked in on your own screen and send shifts from your own planning tool into When I Work.
Your chat writes it as a Hypamoon adapter from the docs above. Reading starts after you click Allow in the portal, and every write waits for your approval, one call at a time. How adapters work
Good to know
- Your adapter uses a fixed key: you paste it once in the Hypamoon portal, never in the chat, and it only goes to the API host you allow.
Try it in your chat
First get access from When I Work. Then fill in what to read and write, and send it.
Build the Hypamoon recipe build-an-adapter for When I Work. API docs: https://apidocs.wheniwork.com/. Read: [what]. Write: [what, or nothing].
In Claude, or another chat with the full Hypamoon connection; adapters are not in ChatGPT yet. You paste the key in the portal, never in the chat. The full recipe
Sources
Checked on 7 November 2026.
When I Work is a name of its owner, used here only to describe the software. This page is not an official integration and Hypamoon has no partnership with When I Work. Found something that changed? Tell us at support.
More in hr, payroll and shifts
- ADP Workforce NowPossible
- BambooHROpen
- DeelOpen
- FactorialOpen
- GustoPossible
- HiBobOpen
- Loket.nlPossible
- NmbrsOpen
- Paychex FlexPossible
- PaylocityPossible
- PersonioOpen
- PlandayOpen
- RemoteOpen
- RipplingOpen
- ShiftbaseOpen
- UKG ProOpen
- WorkdayOpen
- DyflexisPossible
- Visma YouforcePossible
- OfficientOpen
- LuccaOpen
- PayFitOpen
- SkelloPossible
- PapershiftPossible
- BreatheOpen
- RotaCloudOpen
- DeputyOpen
- HomebasePossible
- 7shiftsOpen
- JustworksPossible
- Microsoft ShiftsOpen
- LatticeOpen
- HumaansPossible
- Zoho PeopleOpen
- EmployesOpen
- SD WorxPossible
- HumanityOpen
- QuinyxOpen
- TriNet ZenefitsPossible
- TimeTacOpen
- Sage HROpen
- Partena ProfessionalUnknown
- SecurexPossible
- AcertaUnknown
- SilaePossible
- PaycomPossible
- PaycorOpen
- DayforceOpen
- BrightHROpen
- CIPHRClosed
- ComboUnknown
- ShyfterOpen
- Employment HeroUnknown
- ConnecteamPossible
Tool not listed? Ask the chat to check its API.
The same three checks work for any software. Your chat reads the vendor's own docs and tells you what it found.
Check if [software] has an open API that a Hypamoon adapter can use: public API docs, a key or token I can create myself without asking the vendor, and versions or a changelog. Link the pages you used.
Fill in the name of your software. Checking needs no connection to Hypamoon.
Ready to connect When I Work?
Connect your chat once, then ask it to build the adapter.
Works in Claude, ChatGPT and Copilot. Add to Claude Add to ChatGPT 
Add to Copilot