API development and integration that connects your stack.

We build secure, well-documented APIs and integrate the platforms you already pay for, so data flows between them automatically and your team stops copying information by hand.

Starting at £6,100 Based on our instant-quote algorithm for a focused integration project, one user, flexible timeline. Get your exact range

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In short

API development and integration connects software systems so they exchange data automatically. LOLCorp builds secure, documented APIs and integrates third-party platforms, automating workflows and reporting across your tools.

01 Map

We map your systems, data and the manual steps to remove.

Authentication, rate limiting and clear documentation, so integrations are safe and maintainable.

02 Design

Define the API, data flow and failure handling.

Automation replaces re-keying, spreadsheets and copy-paste between systems.

03 Build

Implement, test and document the integrations.

Queues, retries and monitoring so integrations keep working when things go wrong.

04 Monitor

Alerting and support so the connections stay healthy.

Payments, CRM, accounting, ERP, shipping, messaging and more.

API development services and integrations in detail

Our API development services design and build secure APIs, and our third party API integration services connect your systems to payments, CRM, accounting and logistics platforms. We also provide workflow automation development, build internal business tools, act as a dashboard development company, and deliver business process automation software that removes manual steps.

Why integration work pays for itself

Most businesses run on a patchwork of tools that do not talk to each other, and staff fill the gaps by hand. Third-party API integration connects those tools so an order, a payment or a form submission triggers everything that should follow.

Our API development services cover both consuming other platforms’ APIs and building your own, whether that is an API for a mobile app, a partner integration or a public developer platform. We also build the internal business tools, dashboards and workflow automation that sit on top of the connected data.

See eight business processes worth automating first, or read about custom internal tools. For applications that need rich integrations, see web application development.

Guides

Read before you decide.

Guide · 8 min

8 business processes worth automating first

Automate repetitive, rules-based work that wastes the most time or carries the most risk: approvals, invoicing, onboarding, reporting,…

Read guide

Pillar guide · 14 min

Custom software development: the complete UK guide

Custom software development is designing and building software around how one organisation works, rather than adapting a generic product.…

Read guide

Guide · 9 min

Software security basics for UK businesses

Secure software starts with access control, encryption, tested backups, prompt patching and secure development practice, aligned to the…

Read guide

Why it works

Why teams choose LOLCorp for API Development & Integration

Secure and documented

Authentication, rate limiting and clear documentation, so integrations are safe and maintainable.

Fewer manual tasks

Automation replaces re-keying, spreadsheets and copy-paste between systems.

Reliable at scale

Queues, retries and monitoring so integrations keep working when things go wrong.

Built around your tools

Payments, CRM, accounting, ERP, shipping, messaging and more.

Deliverables

Everything included, nothing hidden.

  • API design and OpenAPI documentation
  • Third-party integrations such as Stripe, Xero, HubSpot and Slack
  • Workflow automation and background jobs
  • Dashboards and reporting on the combined data
  • Monitoring, logging and alerting

Our approach

A clear path to launch.

  1. 1

    Map

    We map your systems, data and the manual steps to remove.

  2. 2

    Design

    Define the API, data flow and failure handling.

  3. 3

    Build

    Implement, test and document the integrations.

  4. 4

    Monitor

    Alerting and support so the connections stay healthy.

Instant quote generator

Get a realistic price in 60 seconds.

Tell us what you are building, choose the pages and features you need, and get a realistic ballpark quote, instantly. No sales calls. No hidden fees. Your price is revealed at the end.

  1. 1Project
  2. 2Features
  3. 3Your details
  4. 4Your quote

What are you building?

Project type

Websites

Software & apps

Choose a project type above and we will ask the right questions.

Where should we send your quote?

We email you a copy with your quote number, valid for 30 days. No obligation, no pressure.

Analysing your project requirements…

  • No obligation, no pressure
  • 100% free automated quote
  • Your price is revealed at the end

Estimates are indicative, not a binding offer. Fixed price confirmed after discovery.

FAQ

API Development & Integration: common questions

What is API integration?

It is connecting two or more software systems so they can exchange data automatically, for example syncing orders from your shop to your accounting software.

Can you integrate with our existing software?

Almost always, as long as the system has an API or a data export. We will tell you honestly if it is not feasible.

How much does an integration cost?

Simple integrations are quick and affordable. Complex ones depend on the systems involved. We quote a fixed price after reviewing the APIs.

Do you document the APIs you build?

Yes, with clear documentation that your team or partners can use.

Related

Explore more services

Custom Internal Tools

Dashboards, CRMs, portals and automations that replace spreadsheets and give your team hours back every week.

Starting at£12,000Explore

Web Application Development

Custom web applications, portals and enterprise platforms engineered for scale and security.

Starting at£8,800Explore

Cloud Management

Secure, cost-optimised AWS, Azure and GCP infrastructure with automation, monitoring and zero-drama scaling.

PricingCustom quoteExplore

Ready to build something that moves the needle?

Tell us what you need. Get a fixed-price proposal, not a sales funnel.

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