Key Takeaways
- Mastercard is extending its Crypto Credential system to self-custody wallets.
- Polygon provides the underlying blockchain infrastructure; Mercuryo handles identity onboarding.
- The tool replaces long wallet addresses with simple, verified aliases for easier crypto transfers.
The race to make crypto as simple as sending an email is accelerating — and this time, one of the world’s largest payment networks is leading the charge.
Mastercard is expanding its Crypto Credential program to self-custody wallets through new partnerships with Polygon Labs and Mercuryo.
The initiative aims to solve one of crypto’s most persistent usability problems: the long, error-prone wallet addresses that have led to countless lost funds.
Instead, Mastercard will introduce verified, human-readable aliases that function more like usernames than technical identifiers.
How Mastercard’s Alias System Will Work
Under the expansion, users who opt in will be able to link their self-custody wallets — like MetaMask or other non-custodial apps — to a verified alias.
The process involves three moving parts:
- Mercuryo (Verification Layer): Mercuryo will onboard users through standard KYC checks. Once verified, a user receives their alias, which is mapped to their wallet.
- Polygon Labs (Blockchain Infrastructure): Aliases are supported on the Polygon network, chosen for fast settlement and low fees. A non-transferable, on-chain “credential token” can be issued to the wallet to signal it supports verified transfers.
- Mastercard (Credential Standard): Mastercard provides the structure for verifying interactions between wallets and ensuring transfers comply with rules such as travel-rule checks. Once active, users can receive crypto by sharing only their alias. Outbound alias-based sending is expected later in the rollout.
Raj Dhamodharan, Executive Vice President of Blockchain & Digital Assets at Mastercard, stated that by streamlining wallet addresses and implementing meaningful verification, the Mastercard Crypto Credential is helping to build trust in digital token transfers.
“Bringing Mercuryo and Polygon’s capabilities together with our infrastructure makes digital assets more accessible and reinforces Mastercard’s commitment to delivering secure, intuitive, and scalable blockchain experiences for consumers worldwide.”
Why Mastercard Is Targeting Self-Custody Wallets
The expansion is one of the clearest efforts yet by a major financial institution to “invisible-ize” the blockchain — making the underlying rails irrelevant to the user experience while preserving self-custody.
For millions of newcomers intimidated by long wallet addresses, the introduction of aliases could significantly lower barriers to entry.
And for developers, Mastercard’s push provides a standardized way to implement identity-aware transfers across wallets, platforms, and blockchains.
Mastercard says the next phase will include adding more verification providers and expanding to additional networks beyond Polygon.
Prashant Jha is a seasoned crypto journalist based in Delhi, India, with a Bachelor’s Degree in Computer Science Engineering. Passionate about the evolving world of blockchain and cryptocurrencies, he has been a dedicated voice in the industry since 2018. Prashant’s expertise lies in regulatory reporting, where he unravels complex legal and financial developments with clarity and precision. Before joining CCN in 2024, he honed his craft at Cointelegraph, establishing himself as a trusted name in crypto journalism.
His coverage spans major industry events, including the high-profile collapses of FTX, Three Arrows Capital (3AC), and LUNA, offering readers insightful analyses of their regulatory and market implications. Prashant’s technical background enables him to bridge the gap between intricate blockchain technology and its real-world applications, making his work accessible to novices and experts.
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