Zyfy API
One API key. Two products. Standard HTTP.
Postcode Intelligence
Flood risk, crime, IMD, property prices, broadband, MP data, and composite scores.
Vehicle Intelligence
DVLA details, ULEZ status, MOT intelligence signals, odometer trend, and buy recommendation.
Authentication
All endpoints require an API key sent in the X-Api-Key header.
curl https://zyfy.uk/v1/postcode/SW1A+2AA \
-H "X-Api-Key: YOUR_API_KEY"Your API key is shown once when you sign up and is available in your dashboard. Keys are prefixed ea_live_. Keep it secret — it has access to your quota.
Quota & rate limit headers
Every response includes headers describing your current usage.
| Header | Description |
|---|---|
X-Quota-Limit | Your monthly request allowance |
X-Quota-Used | Requests used this period |
X-Quota-Remaining | Requests left this month |
X-Quota-Grace-Limit | Hard ceiling on paid plans — limit × 1.1 |
X-Quota-Resets | ISO 8601 datetime when quota resets |
Retry-After | Seconds to wait after a 429 response, or before retrying an enrichmentPending response |
Enrichment pending
For vehicle registrations not yet in our database, the first response will include enrichmentPending: true.
The registration has been queued for enrichment — retry after the Retry-After header value (typically a few seconds).
Postcode data is pre-loaded and never returns enrichmentPending.