Free developer tool
Free Finnish postcode checker.
Look up any Finnish 5-digit postcode instantly. Confirm municipality, area type, and validity before configuring your delivery zones.
POST /api/v1/delivery/check — demo
Enter a Finnish postcode (5 digits)
Enter a postcode above to start
// demosimulated response
// coveragethousands of FI postcode records
This is a simulated demo — results are illustrative only. Real API results depend on your zone configuration.
Need this in your checkout?
This demo uses simulated data. When you connect your own account, the API validates against your delivery zones — postcode lists you define in the dashboard.