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.

What we offer

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.

  • 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.

  • 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.

  • 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.

  • Reach users in 180+ countries without adding new banking relationships.

    Alt21’s infrastructure handles the international payment rails, currency conversion, and local settlement.

  • 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.

  • Your users never leave your platform to manage their money.

    Collect, convert, hedge, earn, and withdraw all within your product experience.

What’s included

Tools that power your platform

Forward contracts, embeddable

Your users can lock in today’s rate for a payment they’re making in 30 days or 12 months, directly within your platform. No broker call, no separate account.

Target rate orders trigger automatically via API

Set a rate threshold in your platform logic. Alt21 monitors the market and executes automatically when it’s hit. No manual intervention required.

FX options, protect your users’ downside, keep the upside

Embeddable options give your users asymmetric protection, a worst-case rate guaranteed, with full benefit if the market moves in their favour.

Real-time reporting APIs, full visibility for your platform and your users

Live position data, P&L reporting, and exposure dashboards available via API. So your platform can surface visibility to users without building the data infrastructure yourself.

How to

How the integration works

01
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

02
Integrate via API

Full API documentation available. Webhook support for automated flows. Our technical team supports throughout.

03
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.

Why choose us?

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.

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.