Getting Started

Developer Key

To access the OpenCaching.com API you need to developer key.  A development key is a 16-character string consisting of upper case letters, lower case letters, and numbers.  Each application or website that is going to be accessing the API needs to get its own key.

How to Register for a Developer Key

Email geocaching@garmin.com and include the following information.

  1. Acknowledge that you have read and agree to the API Terms of Use.
  2. Include the name of the application or URL of the website that will use the key.

Authorization Header or Parameter

Your API requests must include your developer key in the HTTP Authorization header or in an Authorization parameter in the query string.  For example: http://www.opencaching.com/api/geocache?center=38.642,94.754&limit=5&Authorization=your_developer_key.