REST API development
Clean RESTful APIs with proper authentication, rate limiting, versioning, and OpenAPI documentation. Built to the standards developers expect.
API Integrations
Connect your systems. Stop copying data manually.
We design and build the connections between your software: REST APIs, GraphQL endpoints, webhook handlers, third-party integrations, and data sync pipelines. Every integration is documented, tested, monitored, and built to handle failure gracefully.
// Webhook handler — reliable
app.post("/webhook", async (req) => {
await verify(req.headers.signature);
await queue.add(req.body);
});"
Timeline
1–3 weeks
Most integrations ship within two weeks. Complex multi-system pipelines in 3–4 weeks.
Reliability
Error handling
Every integration has retry logic, failure alerting, and idempotency handling.
Documentation
Full API docs
OpenAPI spec, integration guide, and runbook delivered with every project.
Integration capabilities
Any system. Any direction. Any complexity.
Webhook handling
Reliable webhook receivers with signature verification, idempotency, retry handling, and event queuing. Stripe, HubSpot, GitHub, Slack — any webhook source.
Data sync pipelines
Scheduled and real-time data synchronisation between databases, CRMs, ERPs, and analytics platforms. Transformation logic, deduplication, and conflict resolution.
Third-party integrations
Stripe, Xero, QuickBooks, HubSpot, Salesforce, Twilio, SendGrid, Slack, Notion, Airtable — we have integrated with all of them. If it has an API, we can connect it.
Security & authentication
OAuth 2.0, API keys, JWT, HMAC signature verification, and mTLS where required. We handle auth correctly — not as an afterthought.
Monitoring & alerting
Integration health dashboards, error rate monitoring, latency tracking, and PagerDuty/Slack alerts when something needs attention.
Integration options
Custom integration vs. iPaaS platforms.
| Zapier / Make | Els Global integration | Build in-house | |
|---|---|---|---|
| No monthly platform fee | — | ||
| Complex transformation logic | Limited | ||
| Proper error handling | Basic | ||
| You own the code | — | ||
| Fixed price | — | — | |
| Monitoring included | Basic | Extra work | |
| No step/task limits | — | ||
| Ready in 1–2 weeks | — |
Integration questions
What to know before connecting your systems.
If it has an API or webhook support, we can integrate with it. Common ones include: Stripe, Xero, QuickBooks, HubSpot, Salesforce, Slack, Notion, Airtable, GitHub, Shopify, WooCommerce, Twilio, SendGrid, Mailchimp, and any custom or internal system.
Every integration we build has retry logic, idempotency handling, and failure alerting. If a webhook delivery fails, it retries with exponential backoff. If an API call fails, we log it and alert you. You know about failures before your data gets out of sync.
Sometimes. If the system has a private API, a database we can query, an export format we can consume, or a browser interface we can scrape (where allowed), we can often integrate it. We will tell you what is possible during scoping.
We write explicit transformation logic that maps fields, handles nulls and defaults, resolves conflicts, and deduplicates records. Every transformation rule is documented and tested so your team can understand what is happening.
Yes. Every integration ships with an OpenAPI spec (where applicable), a runbook explaining what each component does, error handling behaviour, and instructions for common maintenance tasks.
Ready to get started?
Tell us what you need and we will come back with a clear plan and a fixed quote — no obligation, no jargon.