Three compatible endpoints, same Royal Mail PAF data, one API key. Type a query and watch the requests in real time — searching as you type is free, and a completed lookup spends one credit.
Our native API. Clean REST endpoints, structured JSON responses, x-api-key header auth. If you’re starting fresh, start here.
Make a search to see the live HTTP request and response here.
100 free lookups. No credit card. Pick whichever format fits your stack.