
To access tools and resources to map the world.
MapQuest API is a free Geocoding API that requires apiKey authentication, is served over HTTPS and does not support CORS, so it should be called from a server.
Advanced geospatial and mapping services for developers and technical teams.
Details from developer.mapquest.com.

Unified API suite · now live
Geocode an address, validate an email, track a flight or pull stock data with one account, one dashboard and one API key.
IP geolocation with accuracy radius, ASN, and flags for Tor exits, known VPN networks and hosting
The MapQuest API is provided by MapQuest Developer API (developer.mapquest.com). Advanced geospatial and mapping services for developers and technical teams.
Yes. The MapQuest API is listed in the Geocoding category of the public-apis directory, which only includes APIs that are free or have a free tier. Check its documentation for rate limits and paid plans.
Yes. The MapQuest API uses apiKey authentication, so you need to register for credentials before making requests.
Not directly. The MapQuest API does not allow CORS, so call it from a server, serverless function or proxy instead of front-end JavaScript.
Yes. The MapQuest API is served over HTTPS, so it's safe to use in production.