APIs & integration
Make the systems you already pay for work together
Integration work is rarely glamorous and almost always where the real cost sits. Two systems hold overlapping data, nobody agrees which one is authoritative, and someone bridges the gap by hand every week.
We design and build the interfaces between systems — the APIs you expose, the services you consume, and the sync logic in between — with the error handling and monitoring that separates an integration you can trust from one that quietly stops working.
The problem
What this usually looks like before we start
- The integration fails quietly
- Without retries, logging and alerting, a broken sync is usually discovered by a customer rather than by you. Observability is not optional in integration work.
- No system is the source of truth
- When two systems both claim to be authoritative, the data will diverge. We settle ownership per field before writing any sync logic.
- Someone bridges the gap manually
- Weekly exports and imports are an integration held together by a person. That is expensive and it stops when they take leave.
- The third-party API is unreliable
- External services fail, rate-limit and change. Integrations have to be built expecting that, with backoff and queueing rather than optimism.
Who it's for
This is built for
- Businesses running several systems that each hold part of the truth
- Companies that need payments, invoicing or logistics wired into their own platform
- Teams whose integration was built once and now fails silently
- Businesses that need to expose an API to a partner or a client
What you get
What a build includes
- A clear integration design
- Which system owns which field, what triggers a sync, and what should happen when a call fails — agreed before implementation rather than discovered during it.
- REST and GraphQL APIs
- Documented, versioned interfaces with real authentication, suitable for your own applications or for a partner to build against.
- Webhooks and event handling
- Idempotent handlers that tolerate duplicate deliveries and out-of-order events, because in practice both happen.
- Payments and third-party services
- Payment providers such as Stripe and other external services wired in properly, with reconciliation rather than assumption.
- Retries, logging and alerting
- Failures are retried with backoff, recorded, and surfaced to someone. An integration nobody is watching is not finished.
Technology
What we build it with
We choose tools for reliability and longevity rather than novelty. For this work that usually means:
- Node.js
- TypeScript
- REST APIs
- GraphQL
- Webhooks
- Stripe
- PostgreSQL
- Redis
How we work
From first conversation to production
Map the data and its owners
We document what each system holds and decide, field by field, which one is authoritative. Most integration failures start here.
Design for failure first
Timeouts, retries, idempotency and reconciliation are designed up front, because external services will fail at some point.
Build and verify against real data
Integrations are validated against realistic volumes and edge cases rather than a happy-path example.
Monitor in production
Logging and alerting so problems are visible to you immediately, plus support as the third-party services change.
Questions
Answered honestly
- Can you integrate with a system that has no API?
- Sometimes. Options include scheduled file exchange, database-level integration or automating the existing interface. Each has real trade-offs and we will explain them honestly rather than promising a clean integration that isn't available.
- How do you keep two systems from drifting apart?
- By deciding ownership per field rather than per system, syncing on events instead of on a timer where possible, and reconciling periodically so any divergence is detected rather than accumulating silently.
- Do you build APIs for other people to consume?
- Yes. We build documented, authenticated REST and GraphQL APIs intended for partners or clients to develop against, including versioning so you can evolve them without breaking existing consumers.
- What happens when a third-party service changes?
- It is one of the reasons we stay on after launch. Integrations need maintenance as external providers change their contracts, and we monitor for failures rather than waiting for a report.
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