Integrations
Connected to the places your costs come from.
An integration in CartKit isn't a listing sync. It's a cost feed — the numbers that make margin real, pulled back and matched to the order that incurred them.
Print on demand
Product cost and lead time come back on every quote, so margin is known before the order ships.
Printful
US, EU and UK facilities. Routing by region.
Printify
Multi-provider catalog with per-provider cost.
Prodigi
Fine-art and framed print specialisation.
Gelato
Local production in 30+ countries.
Dropship & wholesale
Stock levels and cost sync on a schedule; agents reorder inside the budget you set.
BigBuy
European catalog, multi-language product data.
CJ Dropshipping
Sourcing plus warehousing, per-SKU cost.
Faire
Wholesale ordering into your own inventory.
Payments
Processing fees are pulled back per transaction and matched to the order, not estimated.
Stripe
Cards, wallets, local methods. Fee reconciliation.
PayPal
Express checkout alongside Stripe.
Mollie
iDEAL, Bancontact and EU local methods.
Shipping & tax
Rates at checkout, actual cost at fulfilment — the difference lands in contribution.
Shippo
Multi-carrier rates, labels and tracking.
EasyPost
Carrier rate shopping.
Stripe Tax
Transactional tax at checkout.
Channels & marketing
Spend flows in so CAC can be computed against real new customers, not attributed guesses.
Meta Ads
Daily spend and campaign performance.
Google Ads
Daily spend, normalised to the same schema.
Klaviyo
Customer and order sync for flows.
TikTok Shop
Listing sync and order ingest.
Anything else
Bring your own supplier.
A generic supplier adapter takes cost, stock and lead time over HTTP, so a partner without a named integration still feeds the margin engine correctly.