Services · API integrations
API & systems integration
RL Enterprise builds API and systems integrations for small and mid-sized businesses: connecting websites, CRMs, payment processors, calendars and internal tools so data moves between them automatically instead of being retyped by hand. We handle frontend and backend integration work, third-party API connections, and workflow automation with n8n, on a stack that includes Node.js, Python, GraphQL, PostgreSQL, Redis, AWS and Google Cloud. If two of your systems do not talk to each other, this is the service that fixes it.
What problems does integration work solve?
The symptoms are familiar in most growing businesses:
- An order arrives on the website, and someone retypes it into the accounting system.
- Leads land in an inbox, and some never make it to the CRM.
- The same customer exists in three tools with three different spellings.
- A price changes, and someone updates it in four places, or forgets to.
- Reports mean exporting spreadsheets from several systems and stitching them together by hand.
- Each one is a system boundary being crossed by a human instead of by software. Integration work moves data across those boundaries automatically: reliably, instantly, and without the copy-paste errors.
What kinds of integration do we build?
- Third-party API connectionsCRMs, payment processors, email platforms, accounting tools, shipping providers, calendars, e-commerce platforms including Shopify and WordPress.
- Frontend and backend integrationMaking your website a live part of your business rather than a brochure: real inventory, real availability, real pricing, customer accounts backed by your actual systems.
- Workflow automation with n8nMulti-step processes wired end to end: enquiry arrives, CRM record created, notification sent, follow-up scheduled. We run n8n in production for our own client work, including FaceRating.ai.
- Custom middleware and internal toolsWhen two systems genuinely cannot meet in the middle, we build the piece between them, with proper error handling, logging and retries rather than a fragile script.
Can we handle serious infrastructure?
Yes, and there is evidence rather than assertion. McManhunt.com, built and operated by RL Enterprise, is a multi-region gaming platform running since 2020 with over 1,500,000 unique users since launch, on MongoDB, Redis, Docker, Kubernetes and Google Cloud APIs. Integration and infrastructure at that scale is our own daily operations work, not something we outsource when a client asks for it.
For most clients the need is far smaller than that, which is the point: the same engineering standards, applied to a scope your business actually needs. See more of our work.
How do we run an integration project?
- 01Map the data flowWhich systems, which data, which direction, how often, and what happens when something fails.
- 02Fixed scopeIntegration projects are notorious for scope creep; a written data-flow map is how we prevent it.
- 03Build with failure in mindEvery integration includes error handling, logging and alerting, because the difference between a good integration and a liability is what happens when the third-party API goes down at 2 a.m.
- 04Test against realityReal data shapes, edge cases, and the third party’s actual behaviour rather than its documentation.
- 05Document and hand overYou get documentation of every flow and full ownership, so you are never dependent on us to understand your own systems.
What you get
Every engagement includes
- Data-flow mapping and written scope
- API connections and automation flows as scoped
- Error handling, logging and failure alerts on every flow
- Testing against real data and edge cases
- Documentation of every integration in plain language
- Full ownership and handover of all code and configurations
- A defined support arrangement for when third-party APIs change
Questions
The things people ask before they call.
›Which systems can you integrate?
Practically anything with an API: CRMs, payment processors, calendars, email platforms, accounting tools, Shopify, WordPress, and internal databases. Where no usable API exists, we will tell you honestly what the workarounds are and what they cost in reliability.
›What is n8n and why do you use it?
n8n is a workflow automation platform: it connects systems and runs multi-step processes without custom code for every step. We use it where it fits because it is fast to build on, self-hostable (so you own the automation, unlike Zapier-style SaaS), and easy for us to hand over documented. Where a flow outgrows it, we write custom code instead.
›What happens when a third-party API changes or goes down?
Every integration we build includes error handling, logging and alerting, so failures are visible immediately rather than discovered weeks later as missing data. Our handover includes a defined arrangement for handling API changes.
›Can you fix or take over an integration someone else built?
Yes. These projects start with the same data-flow mapping, plus an honest assessment of whether the existing work is worth keeping. Sometimes it is; we will not rebuild for the sake of billing a rebuild.
›How much does integration work cost?
Fixed written quote after the data-flow mapping, before any build. Small single-flow automations and large multi-system projects are very different scopes. We do not publish a floor for this one, because the range is wide enough that any figure would mislead more readers than it helped. The data-flow map comes first, then the number.
›Is our data safe during integration work?
Data handling is designed into the scope: what is transferred, what is stored, where, and under whose access. Everything we build runs under accounts you own, and full access and documentation are handed over at completion.
Tell us which systems don’t talk to each other
The typing time is the visible cost, and it is the cheap one. The expensive parts are the lead nobody got round to retyping, the order retyped wrong, and the same customer sitting in three systems under three spellings so that no report you run is quite true. Email contact@rlenterprise.net and name the systems that should be talking and the data that gets retyped by hand today. We will reply within 24 hours, and every project starts with a data-flow map and a fixed written quote before any build.