API & Integrations · Payments

Payment Gateway Integration

Connect your site or system to a payment provider you hold the merchant account for.

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From$799USD one-off

One payment. Work starts once we have confirmed your requirements.

The four questions this page answers

  1. 1

    What you buy

    A one-off remote build: we connect your website or application to a payment provider you already hold an account with, so customers can pay and your system learns about that payment reliably. It depends entirely on that provider’s API, so the work starts with a feasibility review before any development is committed.

  2. 2

    What you get

    4 deliverables, listed in full below

    • A working payment flow
    • Verified webhook handling
    • A reconciliation view
    + 1 more
  3. 3

    How it is delivered

    Remote Setup

    Carried out remotely by our team. Nothing is posted and no one visits.

    REMOTE SERVICE

  4. 4

    How long it takes

    1–3 weeks

    Measured from the point everything under “what we need from you” is with us, not from the moment you pay.

Your system connected to an external system through an integration layer — illustrative concept, not a screenshot of a client system
Your system connected to an external system through an integration layer. Illustrative interface concept — not a screenshot of a client deployment.

What is this, in plain English?

A one-off remote build: we connect your website or application to a payment provider you already hold an account with, so customers can pay and your system learns about that payment reliably. It depends entirely on that provider’s API, so the work starts with a feasibility review before any development is committed.

A payment integration is mostly about what happens when things go wrong: the customer closes the tab mid-payment, the provider sends the confirmation twice, the network drops between charge and confirmation. We build the happy path quickly and then spend the real effort on the failure cases, on verifying that every confirmation genuinely came from the provider, and on making sure an order is never marked paid on optimism.

The problem it solves

You need to take payment online, and a half-implemented integration means either lost sales or orders marked paid that were never actually paid.

If that does not describe you, this is probably the wrong product. Tell us and we will point you at a better fit rather than sell you the nearest one.

What you get

The concrete things that exist at the end and that you own.

4 deliverables

  • A working payment flow
  • Verified webhook handling
  • A reconciliation view
  • Integration documentation including the failure-mode handling

What's included

The work covered by the figure in the buy box, at no extra cost.

  • One payment provider
  • Checkout and confirmation flow
  • Webhook verification
  • Reconciliation view
  • Sandbox and live testing
  • Documentation

Not seeing something you expected? Check what you are not buying before you order.

What does it do?

Everything listed here is delivered as part of this product. Nothing on this list is aspirational.

  • Checkout flow connected to your chosen provider
  • Signature-verified webhook handling
  • Idempotent processing so a duplicate confirmation cannot double-charge or double-fulfil
  • Server-side amount verification against your own records
  • Failed and abandoned payment handling
  • A reconciliation view matching payments to orders

How it works

The delivery sequence from order to handover.

  1. 1

    Feasibility review

    Before development starts we check your chosen provider’s API and account terms against what you need, for your business type and country. If it cannot do the job, you hear it then rather than after the build.

  2. 2

    Sandbox build

    The full flow is built and tested against the provider’s test environment.

  3. 3

    Harden the failure paths

    Duplicates, timeouts, mismatched amounts and abandoned sessions are handled explicitly.

  4. 4

    Verify signatures

    Only cryptographically verified confirmations can change payment status.

  5. 5

    Go live carefully

    Live keys are installed by you, and we test with a small real transaction before opening it up.

Delivery & fulfilment

Stream Edge Solutions ships nothing. Every package on this site is carried out and handed over remotely — this is exactly what happens after you order.

REMOTE SERVICEHow this is delivered
  1. 1We confirm requirementsWe read what you sent with the order, come back in writing with anything missing, and agree the scope before any chargeable work starts.
  2. 2We build and configure remotelySetup, configuration and testing are done by our team over a remote connection — on your systems or on ours, whichever the package specifies.
  3. 3We hand it overYou receive the working setup, the credentials, the documentation and a walkthrough. Everything built for you is yours at handover.

Carried out remotely by our team. Nothing is posted and no one visits. Typical turnaround: 1–3 weeks.

Delivery method
Remote Setup
Expected delivery time
1–3 weeks
Measured from the point everything under “what we need from you” is with us — not from the moment you pay.

Full detail of how work is handed over, what happens if requirements are outstanding and how order records are kept is in the Delivery & Fulfilment Policy.

What we need from you

Nothing starts until these are in place, and the turnaround above is measured from that point — not from the moment you pay.

  • A merchant account or provider account in your own business name — we cannot obtain one for you, and no integration is possible without it
  • Sandbox credentials for build, live credentials at launch, issued to you by the provider
  • A system or site capable of receiving the integration
  • Acceptance that this work depends on the provider’s API: we integrate what they publish and support, and we do not claim a partnership or certified status with any provider

Who this is for

  • Businesses launching online payment for the first time
  • Anyone switching payment providers
  • Systems that need to reconcile payments automatically
  • Businesses whose current integration loses or duplicates confirmations

Business needs this addresses: Sell online, Integrate systems

What's not included

Just as plainly as the list above: the things this package is not.

  • Obtaining your merchant account — the provider decides that, not us
  • Any capability your chosen provider’s API does not expose. If the feasibility review finds a blocker, we tell you before development starts and either rescope or cancel under the refund policy — we will not build something the provider cannot support
  • Provider transaction fees
  • Any storage of raw card data, which we deliberately never handle
  • PCI DSS certification for your business
  • Simulating or faking a successful payment for demonstration purposes

Anything outside the scope above is quoted separately, in writing, before it is carried out. Nothing is added to your bill without your agreement.

FAQs

Can you get us a merchant account?

No. The provider or acquiring bank underwrites your business directly, and that is between you and them. We can tell you what they usually ask for technically, and make sure your site meets those requirements.

Do you store card numbers?

Never. Card details go directly to the provider’s hosted or tokenised fields and never touch your server. This is both safer and dramatically reduces your compliance burden.

What if the provider does not support what we need?

We check that during the feasibility stage and tell you before development starts. Discovering a limitation after build is a failure of process, not an unlucky surprise.

Refund & cancellation

What happens if you change your mind, and what happens to money already paid.

Cooling-off before work starts
You have 7 days after ordering to cancel while work has not yet begun. Up to 25% may be retained to cover scoping and scheduling already carried out.
Work already done
Once delivery has started, refunds are assessed against the work completed and the deliverables already handed over — the list under “what you get” above is what that assessment is made against. Approved refunds are processed within 14 days.
If we cannot deliver what is described here
You are refunded. The scope on this page is the scope we are held to, which is exactly why the exclusions above are stated before you buy rather than after.

The full terms, item type by item type, are in the Refund & Cancellation Policy. How the work reaches you is covered by the Delivery & Fulfilment Policy.

Not sure this is the right product?

We would rather point you at the right thing than sell you the nearest one. Ask us before you buy — no obligation.

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