Zapier Integration

Connect Swft to 7,000+ apps automatically when orders complete, payments fail, or carts are abandoned.

Events available

Event	When it fires
order.completed	A payment succeeds and the order is confirmed
order.failed	A payment attempt fails
cart.abandoned	A checkout session expires without payment
refund.issued	A refund is processed via Stripe

Setup

1. Go to zapier.com/apps/swft
2. Click Connect Swft
3. Enter your merchant API key from the dashboard Settings page
4. Choose your trigger event
5. Map the fields to your action (Mailchimp, Slack, Airtable, HubSpot, etc.)

Payload fields

Every event delivers a payload in this shape:

Field	Type	Description
event	string	One of order.completed, order.failed, cart.abandoned, refund.issued
created_at	string	ISO 8601 timestamp
swft_version	string	Always 1.0
merchant_id	string	Your merchant UUID
data.order_id	string	WooCommerce order number (empty for order.failed)
data.session_id	string	Swft checkout session ID
data.customer.email	string	Customer email address
data.customer.first_name	string
data.customer.last_name	string
data.customer.phone	string | undefined
data.billing_address.line1	string
data.billing_address.city	string
data.billing_address.postcode	string
data.billing_address.country	string	ISO 3166-1 alpha-2
data.shipping_address.line1	string
data.shipping_address.city	string
data.shipping_address.postcode	string
data.shipping_address.country	string
data.items	array	Line items (see below)
data.subtotal_pence	number	Cart subtotal in minor units
data.tax_pence	number	Tax in minor units
data.shipping_pence	number	Shipping cost in minor units
data.discount_pence	number	Discount applied in minor units
data.total_pence	number	Order total in minor units
data.currency	string	ISO 4217 — e.g. GBP
data.payment_method	string	card, klarna, clearpay, ideal, etc.
data.coupon_code	string | undefined	First applied coupon code
data.b2b	object | undefined	Present for B2B orders

Line item fields

Field	Type
product_id	string
name	string
quantity	number
price_pence	number
total_pence	number

B2B fields (when present)

Field	Type
company_name	string
vat_number	string | undefined
po_number	string | undefined
payment_terms	string | undefined

REST Hooks API

Zapier uses REST Hooks — it registers a callback URL when a Zap is activated, and unregisters it when turned off. The Swft API endpoints are:

POST   /merchants/zapier/subscribe      — register a subscription
DELETE /merchants/zapier/unsubscribe    — remove a subscription
GET    /merchants/zapier/sample/:event  — fetch a sample payload for testing

All endpoints authenticate via x-swft-api-key header or api_key query param.

Webhook signature verification

Every delivery includes an X-Swft-Signature header:

X-Swft-Signature: sha256=<hmac>

For Zapier-managed subscriptions the HMAC is unsigned (no shared secret per-subscription). For your primary webhook URL configured in Settings, the HMAC uses your Webhook Secret shown in the Settings page.