OnceAskGet started

A BETTER ADDRESS-BOOK MODEL

What if your address book could update with the people in it?

A traditional address book is only as current as the last time you edited it. OnceAsk connects you to an address a person can maintain themselves, so your list can stay useful as their life changes.

Create your OnceAskSee how OnceAsk works
Addresses change.Self-updating does not mean guessing—it means the address owner updates once and shares the current result.

The contact owns the source

Instead of every friend, relative, and business contact keeping a separate copy of the same home address, OnceAsk gives the address owner one current place to maintain it.

  • One canonical address
  • Recipient-confirmed changes
  • Fewer conflicting copies

Updates can flow to chosen people

When the address changes, the owner can keep the people they have selected current. That is the useful part of a self-updating address book: you do not have to discover the move months later.

  • Controlled sharing
  • Current relationships
  • Less address chasing

Works beyond one occasion

A normal event address list expires after the envelopes are mailed. A live address relationship can still be useful for the next card, gift, announcement, or delivery.

  • Reusable over time
  • Better recurring mailing lists
  • Built for future assistant workflows

HOW IT WORKS

Ask once. Keep the result useful.

1

Connect once

Collect or confirm the person's mailing address and establish the relationship.

2

Let the owner maintain it

When the person moves, they update their own current address in OnceAsk.

3

Use the current version later

When you need to send something again, you are not relying only on the address you collected years earlier.

BUILT FOR PEOPLE + AI

Addresses should be live data, not a stale field in a contact card.

OnceAsk gives people one current address to maintain and gives compatible assistants a permissioned way to resolve or request the delivery information they need.

Explore MCP

QUESTIONS

What to know

What is a self-updating address book?

It is an address-book model where the person who owns an address can maintain that current information and keep authorized contacts updated, rather than every contact storing an independent stale copy.

Does OnceAsk scrape people's new addresses?

No. The model is based on people confirming and maintaining their own mailing address and choosing how it is shared.

Why is this better for recurring mail?

Recurring mail often fails because the address list was built for a prior event. A current-address relationship reduces the need to recollect the same information before every mailing.

RELATED

More ways to use OnceAsk

Keep addresses updatedSee how move updates work in practice.Online address bookOrganize people around current mailing information.Collect mailing addressesStart by gathering the addresses you need today.AI agent address bookExtend the current-address model to assistants.

Collect it once. Keep it current.

Build an address book that is still useful the next time you need it.

Create your OnceAsk