HelpCards
The card link
Why the address on your card never changes, and what that buys you.
Every card holds a permanent address of the form:
https://tapx.sg/c/ + an eight-character code
That address is fixed for the life of the card. What it opens is not.
The indirection, in one line
The chip says which card this is. TapX decides where that card goes. Because those are two separate facts, the second can change while the first is set in metal.
What this makes possible
| Situation | What happens | What you reprint |
|---|---|---|
| You change job title | Edit your profile | Nothing |
| You lose the card | Switch it off; it now opens a dead-card page | Nothing |
| Your Google profile link changes | Change the destination | Nothing |
| The restaurant’s menu PDF is replaced | Upload the new one | Nothing |
| A card is handed to a new employee | Point it at their account | Nothing |
| TapX changes how profiles look | Every existing card benefits | Nothing |
The one rule we hold ourselves to
tapx.sg/c/… must keep working forever. Cards printed today will be in wallets and on counters for years, and a broken link is a brick. That’s why the link uses the tapx.sg domain and not a workers.dev or a shortener — the domain is ours and isn’t going anywhere.
Codes are not secrets
The card link is meant to be opened by strangers, so treat it as public. It isn’t a password and doesn’t grant anyone access to your account. Knowing a code lets someone see whatever that card points at — which is what tapping does anyway.
Still stuck? Email hello@tapx.sg and a person will answer.