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Emerald Wallet

Can an open-source self-custody crypto wallet also serve as a practical fiat on-ramp by embedding bank accounts directly into the wallet experience?

Founded2017
HQCayman Islands (registered); London, England (mailing address); Zug, Switzerland (also cited)
FoundersIgor Artamonov
IndustryFintech / Crypto
The story

Founded in 2017 as an open-source desktop cryptocurrency wallet focused on Ethereum Classic. Around 2022, the product expanded to include an ACH-enabled fiat wallet (emeraldwalletapp.com) powered by Sila and Evolve Bank & Trust, bridging self-custody crypto with bank-linked fiat deposits. The emerald.cash branch (EmeraldPay) has since evolved back toward a pure self-custody, no-account crypto wallet philosophy, while the emeraldwalletapp.com entity (Promotional Software Solutions, LLC d.b.a. Emerald Wallet) retains the BaaS-backed fiat wallet product.

Last 12 months
Product timeline
2017
Founded by Igor Artamonov as a desktop cryptocurrency wallet supporting Ethereum Classic, available for Windows, macOS and Linux.· banking
2022
Launched banking-wallet hybrid (emeraldwalletapp.com) offering fiat on-ramp via Sila and Evolve Bank & Trust, with ACH deposit/withdrawal from linked bank accounts.· banking
2025
EmeraldPay (emerald.cash) updated privacy policy confirming self-custody, open-source Bitcoin and Ethereum wallet with no user accounts required.· pivot
The stack
4 layers disclosed in Emerald Wallet’s embedded-finance stack
Money movement
ACH
Banking / BaaS
in the full report
Sponsor bank
in the full report
Crypto
in the full report
Accounting gap: none
3 more providers across 3 layers, with confidence-scored evidence and source URLs, are in the Embedded Finance Index report.