Nium Embed

Nium Embed is a set of pre-built components that add compliant financial flows to your platform. Your users complete onboarding, payouts, account management, and foreign exchange (FX) without leaving your product. Each component runs under your brand, so you don't build the screens, the validation, or the compliance logic yourself.

You add components with the @nium/nium-sdk package. Nium hosts each component and renders it in an iFrame inside your page.

Get started

Quick start

Install the SDK, set up authorization, and mount your first component.

Theme customization

Match fonts, colors, and border radius to your platform with the NiumTheme object.

Modules

Each module groups components for one job. Each component has its own integration guide.

Onboarding

Collect customer data and Know Your Customer and Know Your Business (KYC/KYB) checks in an embedded form. Onboarding creates the customer that every other module works with.

Payouts

Manage recipients, send international payouts, answer compliance requests, and track status. Five components, each ready to use on its own.

Multicurrency account

Show a customer's wallet and account statements. Customers view balances, withdraw money, move funds, and download PDF statements.

Foreign exchange

Let customers convert balance between the currencies in their multicurrency wallet, with a live quote before they confirm.

Cards issuance is in development

The Cards issuance module adds card issuance and card lifecycle management to your platform. Contact your Nium account manager to request early access to Cards, Payins, or Reporting.

How it works

Your frontend generates a PKCE challenge and passes it to your server, which gets a short-lived authorization code. Your client uses the code to mount the component. The component runs the flow and sends events back to your app.

The Quick start walks through each step with code.

Why Nium Embed

Ship in days, not weeks

Add a pre-built SDK component instead of building flows from scratch. Each module handles validation, state, compliance, and error recovery.

Your brand, Nium's infrastructure

Pass a NiumTheme object to match colors, fonts, and border radius to your platform. Start from a light or dark preset, and a single brandColor is often all you need.

Always up to date

Compliance requirements, payout corridors, and API versions update automatically. You don't sync anything manually.

Zero redirect, zero flow logic

The SDK handles screen sequencing, branching, and error recovery. You configure intent, and Nium runs the flow.

Secure by design

You generate auth codes on your server, and the SDK consumes them. Your API credentials never reach the browser.

190+ country coverage

Forms and validation adapt to the destination country and rail, such as SWIFT, ACH, Pix, and FPS. Component text is in US English only.