American Express launches travel stamp NFTs on Base

Crypto wallets are spun up on the backend to facilitate Amex’s latest blockchain push

article-image

Hanna Yandiuk/Shutterstock modified by Blockworks

share


This is a segment from The Drop newsletter. To read full editions, subscribe.


Miss collecting stamps in your passport? American Express is now giving US cardholders onchain travel “stamps” for each country visited around the world. 

Each digital “stamp” within the Amex Passport feature has an associated piece of art that will be an ERC-721 token on Base, Colin Marlowe, VP of emerging partnerships at Amex Digital Labs, explained to me in an interview. 

Obviously, it’s not a real passport though, so don’t bother showing the customs officer your app full of NFTs when you’re jetting off to a new locale.

Stamps are viewable within the existing Amex mobile app, which is separate from the upcoming Amex Travel app that’s launching Sept. 18. 

Amex is backdating stamps to get cardholders started with their collections, and will add stamps from the countries users have visited in the past two years to start. 

A crypto wallet for each Amex mobile app user, custodied and operated by Amex, is spun up on the backend when users access the feature. Stamps are minted as tokens behind-the-scenes as cardholders use their Amex cards at different locations around the world.

“We’re trying to do it in such a way that that’s not so in someone’s face,” Marlowe said of Amex’s approach to blockchain integrations.

But cardholders won’t see the wallet that’s spun up (that’s abstracted away), won’t be directly engaging with the blockchain at all, and won’t be able to trade stamps. 

The stamps aren’t introducing cardholders to crypto, per se. They’re supposed to be a way to feel just a little bit more fulfilled about global travel in an increasingly digital age. 

Amex chose to put the stamps onchain as NFTs because blockchain assets can give a greater sense of permanence, Marlowe explained, like the ink of a physical stamp.

“We really are hoping again to capture a customer at the end of their journey, when they’re commemorating and thinking about where they’ve gone, in the hopes that they get inspired again and do something new with us next time,” he said. 

It’s not surprising that Amex is minting the travel stamps on Base. In June, Coinbase revealed the Coinbase One card, which uses Amex and promises 2-4% back in bitcoin rewards on every purchase made. 

As I’ve said before, both Coinbase and Amex are positioning themselves as premium brands — though that means using them comes with higher fees compared to other options on the market. 

The Amex Passport feature is now available for US cardholders within the Amex mobile app, and can be accessed by going to Account > Settings > Try New Features.


Get the news in your inbox. Explore Blockworks newsletters:

Tags

Decoding crypto and the markets. Daily, with Byron Gilliam.

Upcoming Events

Javits Center North | 445 11th Ave

Tues - Thurs, March 24 - 26, 2026

Blockworks’ Digital Asset Summit (DAS) will feature conversations between the builders, allocators, and legislators who will shape the trajectory of the digital asset ecosystem in the US and abroad.

recent research

Research Report Templates (8).png

Research

Kinetiq has established itself as Hyperliquid's dominant liquid staking protocol, holding 82.5% of LST market share with $610M in TVL. The protocol is now expanding beyond its kHYPE staking core into higher take-rate verticals: iHYPE for institutional custody rails, Launch for HIP-3 capital formation, and Markets for builder-deployed perpetuals. We view Markets, launching Jan. 12, as the highest-potential product line given its mechanically scalable, activity-linked unit economics. Near-term revenue remains anchored by kHYPE's KIP-2 fee schedule (~$1.6M annualized), while Markets provides embedded optionality if HIP-3 economics normalize post-Growth Mode. KNTQ's setup is relatively clean: zero insider unlocks until November 2026, 6.2% buyback yield from staking revenue, and cleared airdrop overhang. Risks center on unproven Markets execution, declining kHYPE TVL despite ongoing incentives, and competition from Hyperliquid's native initiatives.

article-image

BTC finished the week up 1.6%, while L2s, RWAs and the treasury trade continued to grind lower

article-image

DTCC moves DTC-custodied Treasuries onchain via Canton, while Lighter’s LIT launches trading at a fees multiple in Hyperliquid territory

article-image

In the 90s, rapt audiences worldwide watched a coffee pot — will that fascination ever turn to crypto?

article-image

Some systems improve by failing — and crypto has no choice

article-image

Yield Basis introduces an IL-free AMM design that already dominates BTC DEX liquidity

article-image

Maybe tokenholders don’t need the rights that corporate shareholders have come to expect

Newsletter

The Breakdown

Decoding crypto and the markets. Daily, with Byron Gilliam.

Blockworks Research

Unlock crypto's most powerful research platform.

Our research packs a punch and gives you actionable takeaways for each topic.

SubscribeGet in touch

Blockworks Inc.

133 W 19th St., New York, NY 10011

Blockworks Network

NewsPodcastsNewslettersEventsRoundtablesAnalytics