Marketplaces & platforms
Embed FX, payments, hedging, and cash management directly into your platform.
Alt21 gives marketplaces, SaaS platforms, and payment platforms access to the full Alt21 infrastructure via API, so your users can send and receive globally, convert currencies, lock in rates, and earn returns on balances, all without leaving your product.
We allow you to manage and protect against currency risk on future transactions.
Embed the full Alt21 product suite
Give your users transparent FX and payments, forward contracts and hedging, cash returns on balances, and accounting integrations. All accessible within your platform via API. One integration, four capabilities.
API-first infrastructure built for scale
Webhooks, automated onboarding flows, real-time FX rates, and settlement APIs. Designed for platforms that need to move fast and process volume with straight-through processing at the core.
New revenue from the volume your users generate
Earn on the FX conversions, payments, and financial transactions your users execute through the embedded Alt21 infrastructure. The revenue model scales with your platform’s growth.
Alt21 carries the regulation. You own the experience
FCA and MFSA regulated. Alt21 is the authorised entity for all transactions. Your platform embeds the capability without inheriting the compliance burden. You build the product. We handle the authorisation.
MARKETPLACE & PLATFORMS
Everything your users need to manage money embedded in your product.
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Payments in 180+ countries, multi-currency accounts, and local IBANs inside your product.
Your users send and receive globally, hold balances in multiple currencies, and pay like a local counterparty without leaving your platform.
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Real-time FX rates, automated conversions, and settlement APIs, all via webhook
Build automated FX flows into your platform logic. Rate requests, conversions, and settlements trigger programmatically. No manual steps, no operational overhead for your team.
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Transparent pricing your users see before every transaction.
The full cost rate, spread, and all-in amount, shown before every conversion.
MARKETPLACE & PLATFORMS
Add financial infrastructure that grows with your platform. Without building it yourself.
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Reach users in 180+ countries without adding new banking relationships.
Alt21’s infrastructure handles the international payment rails, currency conversion, and local settlement.
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Earn on every FX conversion and payment your users make.
Revenue share on the volume your users generate through the embedded Alt21 infrastructure. As your platform grows, the financial services revenue grows with it with no additional build cost on your side.
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Your users never leave your platform to manage their money.
Collect, convert, hedge, earn, and withdraw all within your product experience.
Tools that power your platform
How the integration works
Talk to our integrations team
Tell us about your platform architecture, your users’ needs, and what you want to embed. We’ll confirm technical fit and walk through the integration options available
Integrate via API
Full API documentation available. Webhook support for automated flows. Our technical team supports throughout.
Go live and grow
Your users access the full Alt21 capability suite within your product from day one. Alt21 handles compliance, settlement, and ongoing infrastructure. You own the user experience and earn on the volume.
Your trusted partner for secure global trading
Built for scale straight-through processing at the core.
Alt21’s infrastructure was designed by engineers who previously built systems for the world’s highest-volume trading operations. The platform is built for reliability and speed at scale, not retrofitted for it.
FCA and MFSA regulated across UK and EU, you inherit the coverage.
Alt21 is the authorised entity for all transactions processed through the embedded infrastructure. Your platform accesses regulated financial services capability without becoming a regulated entity yourself.
A long-term infrastructure partner, not a feature vendor.
Alt21 is backed by institutional investors and built on a $21m raise. The platform is designed for longevity, the kind of infrastructure decision you make once and build on, not one you revisit every 18 months.
Delivering real results for real businesses.
faqs
Everything you need to know about how Alt21 works.
Your platform’s users need better FX, payments, and financial tools. Alt21 gives you the infrastructure to offer all of it, without building it yourself or inheriting the regulatory complexity.

