Miami, 8 April 2026 - Transak is now a live, officially listed fiat on-ramp and off-ramp inside Wallet Development Kit (WDK) by Tether. Any wallet built with WDK can let its users on-ramp into crypto with a card, a bank transfer, Apple Pay or Google Pay, and off-ramp to their bank account.
Tether WDK is an open-source toolkit that gives developers self-custodial, multi-chain wallet infrastructure so they don't have to build it from scratch. Transak gives those wallets a way to fund fiat and get the cash out.
“Every wallet eventually needs a way for people to fund with fiat and withdraw. With Transak in Tether's Wallet Development Kit, any team building a self-custodial wallet has that from day one. The payment methods people actually use in their own market and payout processing, without building the infrastructure themselves.”
— Chandrasekar Kuppusamy, Director Of Developer Relations, Transak
Every wallet hits the same wall: getting money in and out
Every team that builds a wallet needs to solve for:
- Wallet management
- Supporting multi-chains
- Track token balances and transactions
- Allowing users to convert fiat <> crypto
WDK removes the first three. But the fourth one needs licenses, bank relationships and local payment methods in every market. That is the part Transak supports.
Closing the gap between a bank account and a self-custodial wallet
As a contributor of a native fiat module to WDK by Tether, the open-source Wallet Development Kit, and as a launch partner for Tether Wallet, Transak enables developers building on WDK to offer users a compliant route between fiat and USD₮, XAU₮, USA₮ and Bitcoin without running a separate payments integration.
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Buy (on-ramp) |
Sell (off-ramp) |
|
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User goal |
Turn money into crypto |
Turn crypto into money |
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What goes in |
Card, bank transfer, Apple Pay, Google Pay, local payment methods |
Crypto from the user's own wallet |
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What comes out |
Crypto delivered to the user's wallet |
Money paid out to the user's bank or card |
Fiat access on day one, without the build
Every wallet built on WDK inherits all of this on day one.
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What the wallet gets |
|
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Assets |
136+ cryptocurrencies across 45+ blockchains |
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Ways to pay in |
Cards, bank transfer, SEPA, Faster Payments, wires, Apple Pay, Google Pay, and local methods market by market |
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Ways to cash out |
Money paid back to the user's own bank account or card |
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Regulated cover |
Registered entities in the US (NMLS ID 2362652), the UK, Canada, Australia and Hong Kong |
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Track record |
600+ platforms already live on Transak |
What the team never has to build:
- Payment method integrations, market by market
- Licences and compliance for the money leg
- Payout rails to banks and cards
- Order reconciliation and status tracking
The arrangement stays self-custodial throughout. The user keeps their keys, partner credentials stay on the partner's own servers, and Transak handles the regulated payment leg. What used to be a multi-month project becomes part of the kit.
Any product that moves money faces the same problem
Transak fiat on-ramp and off-ramp can fast-track any product that needs money to move in and out without building the infrastructure in-house.
- Wallets and exchanges whose users have to leave the app to fund or cash out.
- Fintechs and neobanks adding crypto rails.
- Remittance and payroll paying people out in local currency.
For teams on any other stack, Transak is a partner account and an integration.
About Transak
Transak is the payments infrastructure that connects traditional money with stablecoins and crypto. Through a single API, wallets, fintechs, remittance companies, payroll platforms, marketplaces, and financial institutions can enable users to onboard, fund, and withdraw using stablecoins or crypto directly inside their products.
Transak handles licensing, compliance, identity verification, fraud monitoring, and global payment coverage. Today, more than 600 applications trust Transak, serving over 10 million users worldwide.
Headquartered in Miami, Transak operates globally with offices in London, Bengaluru, Dubai, and Hong Kong.
Learn more at transak.com or follow us on X and LinkedIn.
