Integrations & platform tech

A commerce engine that
proves itself.

Signed webhooks, live shopping feeds, verified provider connections, one-click accounting exports — running on Cloudflare's edge. And because trust is earned: every capability below is labeled truthfully, and you can test our cryptography right here in your browser.

Try the live signature demo Read the developer docs

What you can wire up today

Every pill below is the truth.

“Live” means shipped and working now. “Planned” means we won't pretend — it appears the day it's real.

Live

POS catalog import

Auto-detects Clover, Square, Shopify and Lightspeed export formats and maps columns automatically. Row-by-row truthful results.
Live

Google & Meta shopping feeds

Tokenized XML/CSV feeds that stay in sync with your catalog. Only feed-ready items are emitted — nothing invented to pass review.
Live

Signed outbound webhooks

HMAC-SHA256-signed deliveries for 16 event types to up to 5 endpoints, with a visible delivery log — failures included.
Live

Point of Sale register

In-store checkout on the boutique’s own catalog: carts, discounts, split tenders (cash / card / gift card), loyalty earn, returns and store credit — with inventory decremented through the real ledger.
Live

Klaviyo contact sync

Push loyalty and gift-card contacts to your own Klaviyo account. Connected status is earned by live key verification.
Live

Shippo rates & labels

Live carrier rates relayed verbatim — we add nothing — and one-click label purchase on your own Shippo account.
Live

Twilio SMS

Send customer texts through your own Twilio account, with every send logged truthfully — including failures.
Live

QuickBooks & Xero exports

Bank-import CSVs your bookkeeper loads directly. Refunds represented correctly, references included.
Live

Gift cards & loyalty

In-house gift cards with a full ledger, and a points program whose earn rate is always merchant-set — never defaulted.
Live

Live inventory ledger

Every quantity change is a recorded adjustment with who, when and why. Feeds and dashboards read the same truth.
Live

Barcode label printing

Print-ready barcode labels straight from your catalog for shelf and tag workflows.
Live

Purchase orders & receiving

Vendor POs with receiving that updates stock through the inventory ledger. Costs are merchant-entered — never guessed.
Live

Reports

Sell-through, daily summaries, tender mix and tax collected — every figure summed from recorded rows, nothing projected.
Live

Customer CRM

Loyalty members with lifetime spend, purchase history and appointments in one view. Walk-ins counted honestly, never guessed.
Live

Appointments

Styling sessions, fittings and private shopping on one simple calendar — linkable to loyalty profiles.
Live

Transfers & cycle counts

Document stock moves between locations and reconcile shelf counts through the same auditable ledger.
Planned

Direct POS API sync

Two-way sync with Clover, Square, Shopify and Lightspeed. Requires per-platform developer credentials — offered only when real.
Planned

Public REST API

Token-based API access for your own tooling. Documented here the day it ships — not before.

Interactive · runs entirely in your browser

The signature lab

Every webhook Hangerline delivers is signed with HMAC-SHA256. This demo computes that exact signature locally using your browser's Web Crypto API — the same primitive our platform signs with. Edit either field and watch the signature change; nothing you type leaves this page.

Computed delivery headers

content-type: application/json

user-agent: Hangerline-Webhooks/1.0

x-hangerline-event: giftcard.redeemed

x-hangerline-signature:

computing…

Computed locally via Web Crypto — nothing is sent anywhere.

Want to verify on your server? Node.js and Python examples in the docs use constant-time comparison, as they should.

Shopping feeds

Your catalog, speaking fluent Google & Meta.

Paste one tokenized URL into Google Merchant Center or Meta Commerce Manager and your feed stays current automatically. The honesty rule is structural: an item ships in the feed only when it has a real price, image and product link — the dashboard shows exactly which items are held back and why.

  • Rotatable tokens — revoke a leaked URL in one click
  • Availability derived from live inventory, not a stale flag
  • Nothing invented to pass marketplace review — ever
<item>
  <g:id>DRS-SLK-08</g:id>
  <g:title>Silk Wrap Dress — Emerald</g:title>
  <g:link>https://your-store.example/p/silk-wrap</g:link>
  <g:image_link>https://your-store.example/i/silk.jpg</g:image_link>
  <g:price>148.00 USD</g:price>
  <g:availability>in stock</g:availability>
  <g:condition>new</g:condition>
  <g:brand>Velvet &amp; Vine</g:brand>
</item>

Illustrative sample — your feed contains your real catalog, generated live.

Bring your own providers

“Connected” is a status we make you earn from us.

Paste your own API key and Hangerline places a live verification call to the provider. Only a real, working key turns the light green — a bad key shows the provider's actual rejection reason. Your secrets are stored server-side and shown back only as ••••1234.

Your account · their bill

Klaviyo

Sync loyalty and gift-card contacts into your own Klaviyo lists. Honest counts on every sync: created, already-existing, failed.

Your account · their bill

Shippo

Live rates from carriers, relayed verbatim — we add nothing. Buy a label and get the PDF and tracking number in seconds.

Your account · their bill

Twilio

Customer SMS from your own number. Every send logged with its true status — deliveries and failures alike.

Status earned by live verification

Keys masked, never echoed

Every action in a visible activity log

Built like infrastructure.
Explained like a friend.

The full technical reference — signature verification code, feed specs, import mapping, the security model and an honest roadmap — is public.

Read the developer docs Join the Hangerline pilot