Ducks Unlimited

Overview

Ducks Unlimited is a free public API in the Geocoding category. API explorer that gives a query URL with a JSON response of locations and cities.

Geocoding APIs turn addresses into coordinates and back — essential for maps, logistics, and location-aware features.

You can use this API in prototypes, side projects, and production applications — just keep the provider’s usage policy in mind.

Authentication

Ducks Unlimited requires no authentication — you can start calling it directly, which makes it great for quick experiments and client-side demos.

HTTPS & CORS

• HTTPS: supported — traffic to Ducks Unlimited is encrypted, so it is safe to use from production apps.
• CORS: not enabled — call Ducks Unlimited from a server-side environment (Node, Python, Go, etc.) or through your own proxy.

Getting Started

1. Read the official documentation: https://gis.ducks.org/datasets/du-university-chapters/api
2. Make a test request with curl or your favourite HTTP client.

Rate Limits & Notes

• Rate limits, quotas, and free-tier terms are defined by the provider — always check the official documentation for Ducks Unlimited before scaling up.
• The upstream listing is community-maintained; fields like auth, HTTPS and CORS reflect the state at listing time and may change.

FAQ

Does Ducks Unlimited require an API key?

No — Ducks Unlimited is listed as a no-auth API, so you can call it directly.