Pincode API comparison
What to check when adding Indian postal-code lookup to address forms.
Updated 4 Sept 2026
Pincode APIs should document locality fields, invalid-code behavior and rate limits for high-volume checkout forms.
APISeeker values below are from the published Pincode API listing.
| Feature | APISeeker | Typical market |
|---|---|---|
| Locality / district / state | Yes | Common |
| Free tier | Yes | Often capped trials |
| Auth | API key header | API key |
| Rate limits published | Yes | Mixed |
| Docs + playground | Yes | Docs common |