PostalPinCode vs PostNord

PostalPinCode.in mirrors India Post's PIN code directory as a simple keyless REST API, returning post-office name, branch type, delivery status, and district/state/circle hierarchy for any 6-digit PIN or by post-office branch name. Responses are plain JSON with no signup, rate-limit tier, or API key required. It's run as a free public-data convenience layer rather than a commercial product.

PostNord's developer portal exposes REST APIs for shipment tracking, service-point lookup, pickup booking, and postal-code surcharge data across its Swedish and Danish delivery network. Every endpoint requires an x-bap-key API key issued through the portal's self-serve signup, and responses carry CORS headers for direct browser calls. A Free plan covers a meaningful daily quota per method — 500,000 tracking calls a day, for one — with a metered Customer plan billing per call once volume climbs past those limits.