Integrations. Make your systems talk.
API integrations connect systems that otherwise don’t talk: CRM, ERP, e-commerce, payments, internal databases and partner APIs. We build integrations that keep working when the other end doesn’t.
Is this you?
SMEs moving data by hand
The same data is typed into three systems, and mistakes surface at invoicing time.
SaaS companies
Customers keep asking for an integration your team has no time to build.
Products with a new partner
The partner’s API is half-documented and the deadline is still fixed.
The integration works in the demo. Then Monday comes.
Connecting two systems is quick when everything goes right. The real work is what happens when the API slows down, the same event arrives twice, a token expires or a field changes format.
A badly built integration doesn’t crash loudly. It quietly leaves your data out of sync.
Integrations whose failures are visible
Docs and the real API
We read the official documentation and test against the real API. A model’s confident guess about an endpoint is not a spec.
Idempotency and retries
The same message twice doesn’t create two orders. Failed calls are retried in a controlled way.
Monitoring and alerts
Logs, dead-letter queues and alerts, so problems are noticed before your customer notices.
Agents in parallel
One agent builds the API adapter, another writes failure-case tests, a third the docs. A senior checks the contract in both directions.
Senior plans. Agents build. Humans verify.
Agents run in parallel where dependencies permit. They don’t make production decisions.
- 01Goal & scope
- 02Architecture
- 03Bounded agent tasks
- 04Pull requests
- 05Human review
- 06Tests
- 07Release & monitoring
Example integrations
- ↗ CRM ↔ e-commerce or invoicing
- ↗ ERP integrations and order flows
- ↗ Payment providers and webhooks
- ↗ A partner’s REST or GraphQL API
- ↗ File transfers (CSV, SFTP) turned into a modern API
- ↗ Your own API for others to use
- ↗ Data sync and scheduled jobs
- REST
- GraphQL
- Webhooks
- OAuth 2.0
- TypeScript
- Node.js
- Python
- Queues
We pick the stack per project. These are common choices, not a menu.
Generated isn’t done. Verified is.
AI models make mistakes, and so do people. Our process is built to catch them before your users do: human review, tests suited to the risk and validation before release.
See what “done” means ↗How do we get started?
A bounded integration fits a bounded build sprint well: €5,000 + VAT for the first week, fixed price. For larger programmes we agree on phases and maintenance separately.
Fair questions.
How much does an API integration cost?＋
It depends on the APIs, data volumes and failure cases. One bounded integration often fits a build sprint. We estimate after seeing the documentation for both ends.
When is an integration worth it?＋
When the same data is moved by hand regularly, mistakes are costly or customers expect the data straight away. If the transfer happens once a year, a spreadsheet may be the better answer.
What if the other system has no API?＋
There are options: file transfers, a database connection, export and import features or, as a last resort, browser automation. We’ll tell you honestly which of them will last.
Read before you buy.
Which systems need to start talking?
Tell us the systems and what should happen to the data. We’ll start there.
Describe the integration↗