Aftership vs PostalPinCode

AfterShip's Tracking API aggregates delivery status from couriers worldwide behind a single as-api-key header, letting merchants create trackings, poll shipment checkpoints, and register webhooks instead of integrating each carrier separately. A free plan covers low-volume testing, with metered paid tiers billed as tracked-shipment volume grows.

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.