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FX Checkout Impact

Currency Amount Converter Widget

A small converter that turns an amount into its market-rate estimate at the current quote for one FX pair — EURUSD by default, or set symbol= to another allowed pair — for checkout, travel, and remittance pages. Payment-provider fees are excluded and stated as such.

Get the widget See the embed code

One script tag Light, dark & auto themes Domain-authorized public key Synthetic preview with no key

fx-checkout-impact · preview mode

no network

SIMULATED

The real embed in preview mode — synthetic data, no API key, zero network calls. Live data starts once you add your key.

$9.99/ month · 1 domain slot

Each additional domain slot adds half the base price.

Get it

quoteGateway kind

One symbolSymbols per embed

~15 secCached refresh

4Covered instruments

What it shows

A fast answer to one useful question.

One pair’s quote × amount (local calculation) · fees excluded.
Pick the instrument with symbol=; it defaults to BTCUSD when you omit it.
Renders inside a sandboxed Shadow DOM, so it cannot collide with your page’s CSS or scripts.

What the gateway serves itSIMULATED PREVIEW

Gateway kind: quote
Symbol axis: One symbol, set from the embed
Allowed: BTCUSD, XAUUSD, EURUSD, GBPUSD
Default: BTCUSD
Refresh: ~15 s, cached

Every value here is what the gateway enforces, not a description of it. A parameter outside this scope is rejected before any data is fetched.

quote · one symbol × amount

Where it fits

Small enough for a sidebar. Useful enough for a homepage.

FX Checkout Impact is a compact derived-data module rather than a full dashboard. It works best where you want one concise market observation with a clearly stated data basis.

Checkout page

showing what an amount converts to at the live market rate before fees.

Remittance calculator step ahead of the actual transfer quote

Travel-booking page converting a listed price to the traveler's home currency

Docs page illustrating quote-times-amount math

Embed it

One script tag. No chart library. No build step.

Subscribe, authorize the domains that will host the widget, copy your public wk_ key, and paste the snippet where you want FX Checkout Impact to render.

Subscribe & authorize domains

Your subscription includes 1 domain slot. Add more slots when the same widget needs to run on more sites.

Copy the public widget key

The wk_ key is meant to appear in the page source. It is restricted to the domains you authorize and can be revoked.

Paste the embed

Choose your theme and symbol, then drop the generated script tag into the page.

<script
  src="https://tickatlas.com/widgets/embed.js?w=fx-checkout-impact&k=wk_YOUR_KEY&symbol=EURUSD"></script>

Light is the default, so the snippet stays clean. Dark appends &theme=dark; Auto appends &theme=auto and follows each visitor’s system preference. Picking one re-renders the preview above in that theme.

Embed parameters

Small configuration surface. Predictable output.

The querystring on the embed.js script tag stays intentionally compact. Most sites only need the widget slug, the public widget key, a symbol and a theme.

Parameter	Type	Required	Description
w	string	Yes	Widget slug — fixed to “fx-checkout-impact” for this widget.
k	string	No	Your public wk_ key. With it the widget goes live on your authorized domains; omit it for the SIMULATED preview (synthetic data, zero network). Default: preview mode.
symbol	symbol	No	The symbol to display, uppercased. Must be within the widget’s allowed set. Allowed: BTCUSD, XAUUSD, EURUSD, GBPUSD. Default: BTCUSD.
mode	enum	No	Force preview even with a key, e.g. for a staging page. Allowed: live, preview. Default: live when k is present, else preview.
theme	enum	No	Colour theme. light (default) is today’s look; dark uses a WCAG-AA dark palette; auto follows each visitor’s system (prefers-color-scheme). Omit for light. Allowed: light, dark, auto. Default: light.

Default symbol

Omit symbol= and the gateway serves BTCUSD.

BTCUSD

Allowed instruments

Set symbol= to any one of these 4.

BTCUSDXAUUSDEURUSDGBPUSD

Under the hood

Public embed key outside. Short-lived access inside.

The browser-facing key is domain-scoped by design. The embed exchanges it through our gateway, calls the hosted widget endpoint with short-lived authorization, and renders inside an isolated Shadow DOM.

CSS isolation

A sandboxed Shadow DOM with all:initial keeps your page’s styles and scripts out and the widget’s styles in. It fits its container’s width, never wider.

Domain authorization

The public wk_ key only renders on domains you add to the subscription, and you can revoke it from your dashboard at any time.

Cached refresh

It refreshes about every 15 seconds against cached data, so many visitors collapse onto one computation. Over the per-key / per-domain limit the gateway returns 429 and the widget keeps its last frame.

Graceful failure

No current data, a revoked key or an unauthorized domain all produce an explicit “unavailable” state — never a fabricated or zeroed value, and never a thrown error on your page.

FX Checkout Impact subscription

$9.99/ month

Base subscription includes 1 domain slot.

Live widget data on the domains you authorize
Light, dark and auto themes
Any one of its allowed instruments
A public, revocable widget key
Cancel any time; the embed stays live through the paid month

Domain slot calculator

Each additional domain adds half the base price.

$9.99 per month

1 domain slot = $9.99 base subscription. Slots are fixed at purchase; manage domains and your key from your dashboard.

Data contract

The embed has a simple hosted endpoint behind it.

The embed calls this endpoint for you on each refresh, using a short-lived token minted from your wk_ key — your key never leaves the gateway.

GET widget endpointhosted

Market data for this widget

One pair’s quote × amount (local calculation) · fees excluded.

/widgets/api/fx-checkout-impact/quote?symbol=BTCUSD

Response shape{ success, widget, cached, data }

{
  "success": true,
  "widget": "fx-checkout-impact",
  "cached": true,
  "data": { symbol, bid, ask, spread } (amount × rate is computed in the browser)
}

Endpoint parameters

Parameter	Type	Required	Description
symbol	symbol	No	One symbol; must be within the widget’s allowed set (server-enforced). Allowed: BTCUSD, XAUUSD, EURUSD, GBPUSD. Default: BTCUSD.

Set symbol on the embed to any one of this widget’s allowed symbols (BTCUSD, XAUUSD, EURUSD, GBPUSD); it defaults to BTCUSD if omitted. A symbol outside this set is rejected by the gateway before any data is fetched, and the widget shows its “unavailable” state.

Frequently asked

Before you embed it.

What the widget reads, how preview mode works, and what happens when data is temporarily unavailable.

Which pair drives the conversion?

One symbol per embed from BTCUSD, XAUUSD, EURUSD, or GBPUSD (symbol=), pairing an amount against that instrument's live quote. The default demo uses EURUSD; it is not fixed to a single EUR-to-USD-only calculation.

Are payment-provider fees included?

No, the result is amount times the live market quote only. Card, FX-margin, and transfer fees are excluded and the widget states that.

How often does the rate update?

~15-second cached quote. On a feed gap the last verified rate is held, never a zeroed or invented figure.

Does it need a key to preview?

No, preview mode runs on synthetic data with no key; a live embed requires an active paid subscription.