Saving cards for one-tap checkout

What "save card for future purchases" means when you see it on a Manifold checkout, when to tick it, and how to remove a saved card later.

What you're actually saving

Manifold services use Stripe as the payment processor. Stripe handles all card data; Manifold itself never sees your card number, expiry, or CVV. When you tick "save card for future," Stripe stores the card under your account and gives Manifold back a token — a meaningless string that only Stripe can resolve to your card. Manifold stores the token, not the card.

The next time you reach a Manifold checkout while signed in, the saved card appears as an option: "VISA ····4242 — confirm $40?" One tap completes the transaction. No card number to re-type, no expiry to re-enter.

When to save a card

• Do save if you expect to use the service more than once — tournament registration, recurring meetup fees, donations.
• Do save on your own personal device that's secured by passcode and biometric. Saved cards are tied to your Manifold account, so anyone signed in to your account on any device can use them.
• Maybe skip if you're using a shared or public device, or paying for someone else. Use a one-time card-number entry instead.
• Skip if you'd rather use Apple Pay or Google Wallet — those provide the same one-tap convenience without anything stored on Manifold's side at all.

What "saving" looks like at checkout

On a Stripe checkout page, after you enter card details (or pick a saved method), look for a checkbox or toggle labelled something like:

• "Save my info for 1-click checkout"
• "Securely save my information for 1-click checkout"
• "Save card for future Manifold purchases"

If you tick it and complete the payment, the card is saved. If you don't, it's used for that single transaction only and discarded.

Stripe Link — across-merchant convenience

Stripe Link is a cross-merchant variant: a saved card not just on Manifold, but on any site that uses Stripe Checkout. You may see a prompt offering to save your info to Link the first time you check out on a Stripe-powered site. If you opt in, Link emails you a short verification code each time you use it on a new device, and your card autofills across thousands of sites.

Stripe Link is independent of any specific merchant — you can opt in via one site, then benefit on all the others. It's optional.

Managing your saved cards

Manifold services that use saved cards will expose them in your account settings. Look for sections labelled:

• Payment methods
• Billing
• Wallet

From there you can view the last four digits, set which card is default, add a new card, or remove one. Removing a card from Manifold also tells Stripe to forget it.

Stripe Link saved cards are managed at link.com (sign in with the email you used to set up Link).

Security

Saved cards are protected by three layers:

1. Stripe's PCI-DSS Level 1 compliance. The same security standard used by banks. Card data is encrypted at rest, segregated from the rest of the world by audited controls, and never sent to Manifold.
2. Your Manifold account. A saved card can only be used by someone signed in to your Manifold account. Strong sign-in (passkey, strong password, two-factor) protects the card too.
3. Bank-side fraud monitoring. Your bank still sees every transaction and will flag or block unusual activity, regardless of how the charge originated.

Refunds

Refunds go back to the original payment method. If you paid with a saved card, the refund credits that card. You don't need to do anything; refunds typically appear in 3–10 business days depending on your bank.

For Canadian users: some refunds (especially smaller ones, or when there's no card to refund to) may be sent by Interac e-Transfer instead. See Interac auto-deposit to make those frictionless.

Common questions

Can Manifold employees see my saved card number?

No. They see the last four digits and card brand for support purposes — nothing else. Stripe enforces that boundary.

What happens if I delete my Manifold account?

Saved card tokens are deleted at Stripe. Your actual card and bank account are untouched.

The card I saved is expiring or got reissued. What do I do?

Most major card networks (Visa, Mastercard) push automatic-updater notifications when cards are reissued, and Stripe applies them silently. If you're unsure, just save the new card; you can remove the old one afterwards.