API Integration & Third-Party Services
Wiring your product into the tools it depends on — messaging, auth, payments, and more.
SYS — Overview
Integration work is where estimates go wrong. The API is rarely the hard part — the hard part is the failure modes: the webhook that arrives twice, the provider that's down, the field that means something different than the docs claim.
We build integrations that assume all of that, so your product degrades gracefully instead of losing data.
SYS — What you get
- Reliable connections to payments, auth, messaging and the tools you run on
- Idempotent webhook handling, so a duplicate delivery doesn't double-charge anyone
- Retries, backoff and clear failure states when a provider goes down
- Documented contracts your team can extend without reverse-engineering
SYS — Capabilities
Payment gateways, messaging, and auth providers
Webhook-driven, event-based integrations
Documented endpoints your team can maintain
Error handling and retries built in, not bolted on
Ideal for: Products that need to talk reliably to the tools your business already runs on.
SYS — Related work
SYS — Questions
What if the third-party API is badly documented?
Common, and it's factored into how we scope. We build against observed behaviour, not just the docs, and write down what we learn.
Can you build an API for us, not just consume one?
Yes — public or partner-facing APIs, with versioning and documentation designed for people outside your team.
How do you handle secrets and credentials?
Never in the repository. Environment-scoped, rotatable, and documented so a key change doesn't need us.
SYS — Other services
Need api integration & third-party services?
Tell us where the project stands and we'll come back with a clear read on scope, timeline and cost.