★★★★★ Trustpilot 4.4|Next working day settlement

Payment gateway API for custom checkouts and platforms

The eCom Pay payment gateway API puts full card processing behind whatever you are building, a bespoke checkout, a marketplace, a booking engine or a product that does not exist yet. Hosted fields keep card data off your systems, tokenisation powers saved cards and repeat billing, and settlement lands the next working day, approved in 24 hours once your documents are in.

Takes Direct API accessHosted card captureTokenisation built inDeveloper support

See if you're pre-approved

Answer a few quick questions for an instant pre-approval indication. No obligation, under 60 seconds.

Pre-approval progress 14%
How do you take payments?
Do you currently take card payments?
What is your industry?
How long have you been trading?
How is your business set up?
Estimated monthly card volume?
Strong match

Based on your answers you are a strong pre-approval match. Confirm a few details and we will finalise your application.

A real person reviews every application, and we never share your data.

24 hrs

approval, once documents are in

150+

currencies processed

4.4

Trustpilot rating

2010

processing payments since

Recently approved: Vape retailerRecently approved: Online pharmacyRecently approved: Dessert and food brandRecently approved: Automotive parts sellerRecently approved: Takeaway and ordering siteRecently approved: Travel agencyRecently approved: CBD storeRecently approved: Forex platformRecently approved: Crypto merchantRecently approved: Subscription boxRecently approved: Salon and bookingsRecently approved: Adult and datingRecently approved: Vape retailerRecently approved: Online pharmacyRecently approved: Dessert and food brandRecently approved: Automotive parts sellerRecently approved: Takeaway and ordering siteRecently approved: Travel agencyRecently approved: CBD storeRecently approved: Forex platformRecently approved: Crypto merchantRecently approved: Subscription boxRecently approved: Salon and bookingsRecently approved: Adult and dating

On this page Choosing a provider · The integration · Going live · See it working · Once you are live · FAQs

Choosing well

What to check in any payment API

A payment API is a long-term dependency, so choose it like one. Three things separate an API your developers will thank you for from one they will curse.

Check your approval odds

Where the card data flows

The right architecture captures cards through hosted fields served from the gateway’s secure infrastructure, so raw card data never touches your servers and your PCI DSS scope stays small however custom the build gets.

Whether humans answer

Documentation is the start, not the service. An integration goes live faster and safer when developers can talk to people who work with the API daily, which is exactly what our team provides through scoping, build and testing.

What happens after the code ships

The API is half the product, the account behind it is the other half. Underwriting done properly, settlement the next working day and a personal account manager mean the business side keeps pace with the build.

The integration

What the API puts in your hands

Full card processing as building blocks, with the account and support behind them.

Payments, your way

Take one-off payments inside any flow you design, with hosted fields dropping into your own front end so the experience stays entirely yours.

Tokenisation as a primitive

Vault cards as secure tokens on first use, then charge, re-charge or one-tap checkout against the token. Saved cards, subscriptions and repeat billing all build on the same block.

3D Secure 2 handled

Strong customer authentication runs through the API with the gateway handling the challenge flows, keeping you aligned with SCA rules without building bank interactions yourself.

Recurring and repeat billing

Schedule recurring charges against stored tokens for subscriptions, instalments and usage billing, with smart retries rescuing failed payments.

150+ currencies

Price and charge in the currencies your customers think in, settle in yours from 25+, and reconcile everything on one account.

Reporting you can build on

Clear transaction data with consistent references, so your own dashboards, ledgers and reconciliation jobs have something solid to stand on.

From scoping to first live payment in four steps

  • Tell us what you are buildingthe flow, the volumes and the model. A specialist and our integration team scope the cleanest route
  • Application processed properlyexperienced underwriters process your application and guide you step by step, approved in 24 hours once your documents are in
  • Build with supportyour developers work with people who know the API daily, through sandbox, integration and testing
  • Go live, get settledevery path verified, payments flowing, and settlement landing the next working day
Start your application
API integration review
Hosted fields live ✓
Tokens vaulted ✓
3DS2 flows verified ✓
Settlement next working day ✓
Status shipped
SaaS platformsMarketplacesBooking enginesBespoke checkouts
See it working

The eCom Pay API, in practice

Video coming soon
Rated 4.4 on Trustpilot

What our merchants say

Fair. So here is what UK merchants say after switching to eCom Pay, in their own words.

★★★★★

No hidden fees, best so far

It was such a pleasure working with eCom Pay for my company, very straightforward to set up and the team were so helpful. No hidden fees, cost efficient, and from using other platforms before I can say this has been the best so far.

Verified merchantvia Trustpilot

★★★★★

Simpler than the big names

We found eCom Pay to be a simple, efficient payment system to integrate, with a lot of support behind it. Would recommend them over competitors who charge far too much.

Verified merchantvia Trustpilot

★★★★★

Set up fast, better rates

Great customer service from eCom Pay. Needed a card reader for my business, they had me set up fast and gave me better rates than the last company. Highly recommend.

Verified merchantvia Trustpilot

★★★★★

Sales noticeably improved

Super impressed with eCom Pay. The transaction fees are competitive, and I love that my customers have multiple payment options, which has noticeably improved my sales.

Verified merchantvia Trustpilot

★★★★★

Transparent, reliable, efficient

Good service from eCom Pay. The card machines are reliable and easy to use. I like that there are no hidden fees and everything is explained upfront.

Verified merchantvia Trustpilot

★★★★★

Always answers when I need help

Would highly recommend. Easy, simple, and always answers when I need help. The best payment gateway I have come across, with a wide variety of packages available.

Verified merchantvia Trustpilot

Once you are live

Life after approval, in plain terms

The application is the start, not the product. This is what running your payments with eCom Pay actually looks like, week to week.

01

Your personal account manager

Available 24/7 by phone, WhatsApp or email. Integration questions, rate reviews and new features all go through one person who knows your build.

02

Developer resources

The developer hub covers integration routes and how the pieces fit, and full technical documentation is provided at onboarding, walked through with your team.

03

Specialist sectors welcome

Custom builds in specialist sectors run on accounts underwritten for them, the same API on acquiring that understands your industry.

04

Grows with the product

Start with one payment flow and add saved cards, recurring billing or new currencies as the product evolves, all on the same account and integration.

FAQs

Payment API, straight answers

What can I build with the eCom Pay payment API?

Any flow that ends in a card payment. Bespoke checkouts, marketplaces, booking engines, SaaS billing, apps and internal tools all build on the same blocks, hosted card capture, tokenisation, 3D Secure 2 and recurring charges, with settlement the next working day.

Does card data touch my servers?

No. Hosted payment fields capture card details directly into the gateway’s secure infrastructure and hand your systems a token, so your PCI DSS scope stays small no matter how custom the surrounding build is.

Is there developer support or just documentation?

Both. The developer hub and full technical documentation cover the how, and our integration team works with your developers through scoping, sandbox, build and testing, which is usually the difference between a smooth fortnight and a stuck month.

Can I run subscriptions and repeat billing through the API?

Yes. Cards vault as secure tokens on first use, and scheduled or on-demand charges run against the token, with smart retries on failures. Subscriptions, instalments and usage billing all build on that primitive.

Which currencies does the API support?

Processing runs in 150+ currencies with settlement in 25+, so international pricing is a product decision rather than a payments limitation, and everything reconciles on one account.

How long does an API integration take?

The account is approved in 24 hours once your documents are in, and build time depends on your scope, agreed honestly at the start. Simple hosted-field integrations go live in days, and our team supports the build for as long as it takes.

Written by the eCom Pay team. Reviewed August 2026. Last updated August 2026.

Your product, our payment rails

Direct API access with humans behind it, hosted card security and settlement the next working day, approved in 24 hours once your documents are in.

Start technical reading on the developer hub, or see all platform gateways if a plugin fits better.

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