App integrations

pages

Connect HTML to the platforms you already sell with

Use Plandalf to connect HTML with checkout pages, payment flows, email tools, CRM records, access systems, tax engines, and webhooks.

How it works

Plandalf is the commerce layer between apps

HTML keeps doing what it is best at. Plandalf handles the offer, checkout, buyer fields, payment context, invoice data, and post-purchase events that every other app needs.

Plain HTML — the escape hatch for any stack we don't have a dedicated catalog entry for yet. Drop the Plandalf SDK `<script>` tag before the closing `</body>` tag of whichever page serves your storefront, and promo / checkout embeds work identically to the named platforms.

Search paths

Pages this hub can feed

Product surfaces to check before wiring HTML

A useful HTML integration page should show where the operator configures Offers, payment options, invoices, Automations, integrations, and API settings before a developer ships the flow.

The Numi offer editor showing layout, product, theme, automation, invoice, and settings controls.

Offer setup before anything syncs

HTML receives cleaner data when the offer, product, price, checkout mode, invoice, and automation path are defined first.

The Numi offer editor showing hosted checkout mode controls.

Checkout can live on the site or app

HTML can launch a hosted checkout, buy button, embedded flow, or SDK checkout depending on where the buyer starts.

The Numi integrations settings page showing Stripe, PayPal, TaxJar, and Avalara connection options.

Integration settings stay inspectable

Use the integrations surface to check Stripe, PayPal, TaxJar, Avalara, and test-mode routing before traffic hits a live checkout.

Feature detail