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Custom API fulfilment integration

Have a bespoke storefront or in-house system? Our REST API and webhooks let you push orders and pull tracking exactly the way you want.

Two-way sync

Custom API × Pulse

  • Orders import automatically
  • Stock kept in sync both ways
  • Tracking written straight back
  • Typical setup: under 30 minutes
How it works

Connecting Custom API to Pulse

1

Generate your API keys

Create credentials in the Pulse dashboard and point your system at our endpoints — full docs included.

2

Push orders & subscribe to webhooks

Send orders to Pulse over REST and get real-time status events back the moment anything changes.

3

Pull stock & tracking

Query live inventory and tracking whenever you need it, or let us push updates straight to your system.

What you get

Everything handled for your Custom API orders

Why Pulse

Why brands fulfil Custom API orders with us

Founder-led service

Real people who know your products — not a faceless ticket queue. We untangle the tricky stuff for you.

Smart carrier routing

Every parcel is matched to the best of 14+ carriers for speed, cost or carbon — protecting your margins.

Built to scale

From your first 300 orders a month to 50,000+, Pulse grows exactly when you do.

FAQs

Custom API & Pulse — your questions

Setup is quick — our onboarding team configures the Custom API connection with you and tests it end to end before you go live, usually within a day.

Yes. Pulse keeps inventory levels accurate across Custom API automatically, so you never oversell. Stock updates as orders are picked and as new inventory is booked in at our warehouse.

We do. Returns from Custom API are received, inspected and processed back into sellable stock where appropriate, with the status visible to you and your customers throughout.

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Ready to connect Custom API?

Book a quick call and we’ll map your Custom API setup and build a bespoke quote around your products and volume.

Book a call