API & Integrations · Development

Custom API Development

A documented, authenticated API so other systems can use your data safely.

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From$1,499USD 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: a purpose-built API for your own business — up to 15 endpoints that let a mobile app, a partner system or your own second product read and write your data under proper access control. This is us building an API you own, not connecting you to somebody else’s.

  2. 2

    What you get

    4 deliverables, listed in full below

    • A deployed, documented API
    • Interactive API documentation
    • Authentication and key management
    + 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

    4–6 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: a purpose-built API for your own business — up to 15 endpoints that let a mobile app, a partner system or your own second product read and write your data under proper access control. This is us building an API you own, not connecting you to somebody else’s.

When you need something else to talk to your system, an API is the front door. This builds one with versioning so you can change it later without breaking existing consumers, authentication and per-key permissions so a partner sees only what they should, rate limiting so one badly written client cannot take you down, and documentation good enough that a developer can integrate without emailing you.

The problem it solves

A partner or a new app needs your data, and the only options are a database login or a nightly CSV — neither of which is safe or maintainable.

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 deployed, documented API
  • Interactive API documentation
  • Authentication and key management
  • An automated test suite

What's included

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

  • Up to 15 endpoints
  • Authentication and scopes
  • Rate limiting
  • Versioning
  • Documentation
  • Automated tests

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.

  • REST endpoints designed around your domain
  • Token authentication with per-key scopes
  • Rate limiting per consumer
  • Versioning so changes do not break existing clients
  • Interactive API documentation
  • Request logging and usage reporting

How it works

The delivery sequence from order to handover.

  1. 1

    Design the contract

    Endpoints, payloads and error responses agreed in writing first.

  2. 2

    Build with tests

    Each endpoint is built with automated tests covering error cases.

  3. 3

    Secure it

    Authentication, scopes, rate limits and input validation.

  4. 4

    Document

    Interactive documentation a third-party developer can work from unaided.

  5. 5

    Support first integration

    We help the first consumer connect and fix anything the contract missed.

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: 4–6 weeks.

Delivery method
Remote Setup
Expected delivery time
4–6 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 written list of what the consuming applications need to do
  • Access to the underlying system and its data, with a non-production environment where one exists
  • A decision on who may access what, and at what rate limit
  • Somewhere to host it — an existing environment of yours, or a cloud account in your own name

Who this is for

  • Businesses building a mobile app on an existing system
  • Companies sharing data with partners
  • Software products needing an integration surface
  • Teams replacing file exports with a proper interface

Business needs this addresses: Integrate systems

What's not included

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

  • Building the client applications that consume the API
  • Connecting this API to any third-party service — that is a separate integration product and starts with its own feasibility review
  • Hosting fees
  • Changes to the underlying system’s data model, quoted separately
  • Ongoing consumer support desk

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

REST or GraphQL?

REST by default, because more integrators can consume it without special tooling. If your consumers specifically need GraphQL, we will discuss it — it is a real option, not a refusal.

How do you handle breaking changes?

Version in the path, with the old version kept live for an agreed period. Consumers get notice rather than a broken integration on a Monday morning.

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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