Tracking · head-to-head
Correios vs PostalPinCode
Correios exposes a REST API suite covering package tracking (Rastro), address lookup (Busca CEP), shipping cost (Preço), and delivery-time estimates (Prazo) for Brazil's national postal service. Access is gated behind a commercial shipping contract rather than public self-serve signup, with keys issued and validated through the CWS (Correios Web Services) portal under a Meu Correios login. A 2026 security tightening now restricts tracking queries to parcels tied to the querying contract, closing off third-party lookups of packages a caller didn't send.
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.
| Correios | PostalPinCode | |
|---|---|---|
| Authentication | API Key | None |
| Pricing | paid | free |
| Formats | JSON | JSON |
| CORS | no | yes |
| HTTPS | Yes | Yes |
PostalPinCode needs no API key, while Correios requires API Key — pick PostalPinCode to start without signup.