API Integration Services & Development

I connect existing websites, applications and business systems using third-party APIs, webhooks, scheduled synchronisation and custom connectors. This can include payment providers, CRMs, email services, booking tools, ecommerce data and internal operational software.

Where no suitable API exists, I can build a controlled import, file exchange or other data integration around the real business workflow.

Often, yes. I have worked with SOAP and XML services as well as modern REST and JSON APIs. Where there is no usable API, a dependable connection may use scheduled CSV or XML files, secure file transfer, controlled database access or a purpose-built import and export process.

I assess the security, reliability and ownership of the available route before recommending it. Sometimes a well-tested scheduled import is safer and easier to support than forcing an old system into real-time integration.

An existing connector or automation service can be the right choice for a simple, standard workflow between widely used products. I will not recommend custom development where a supported tool already meets the requirement reliably.

A bespoke integration becomes more useful when the workflow contains important business rules, unusual data, higher volumes, several systems or failure handling that a generic connector cannot provide. It also gives you greater control over testing, logs and future changes.

API integration connects your software to an interface that already exists, allowing systems to exchange data or trigger actions. API development creates a new interface so your own application, partners or customer-facing products can access selected data and functionality.

A project can require both. I can build a secure REST API and then connect the website, application or partner system that consumes it. This can include data and endpoint design, authentication, permissions, validation, versioning, automated tests and documentation using Laravel, PHP, WordPress or Node.js where appropriate.

Cost and timescale depend on the number of systems, the quality of their APIs, the data volume and direction, the business rules, and the testing and failure handling required. A focused connection between two well-documented systems is very different from a multi-system synchronisation involving legacy data.

Send me the systems involved, the workflow you want to improve and any available API documentation. I can identify the main unknowns and, where appropriate, provide a written scope covering deliverables, assumptions, testing, rollout and an estimate. A short paid discovery is useful when access or documentation needs investigation first.

I use the authentication method supported by each service, keep credentials out of the codebase, restrict permissions where possible and validate data at the boundary. The precise controls depend on the information involved and the systems that process it.

Reliability is designed into the workflow through safe retries, rate-limit handling, stable identifiers, duplicate prevention, useful logs and alerts for failures that need attention. Tests cover successful requests as well as invalid data, unavailable services and partial processing.

Yes. I can own a defined API or integration, provide the backend while another developer builds the interface, or join the team responsible for the surrounding product. We agree the data contract, environments, testing responsibilities and release process so ownership is clear.

I document the integration and can hand it over to your developers once it is running. I am also comfortable working as a subcontractor where the end client relationship belongs to an agency.

Yes. I can investigate an integration that is unreliable, undocumented or no longer compatible with a provider. The first step is to review the code, logs, credentials, API documentation and recent failures so I can distinguish a contained repair from a wider redesign.

Ongoing API support can cover monitoring, failed jobs, authentication changes, new API versions and extensions to the data being exchanged. We can agree ownership, documentation and response expectations whether your team will maintain the code or you want me to remain involved.