Geomag API


The World Magnetic Model calculates the intensity and direction of the Earth’s magnetic field on a specific date-time, geodetic altitude, latitude, and longitude. It is relied upon throughout the world for navigation, mineral exploration, atmospheric and space science, and is installed on billions of devices.

A comprehensive description of the World Magnetic Model, including its limitations, can be found here.

We provide a RESTful API to access the out-of-cycle World Magnetic Model (WMM2015v2) valid for years 2015.0 - 2020.0 and WMM2020 valid for years 2020.0 - 2025.0

API requests must contain a key “API-Key” in the header (see code samples). Obtain a key from here.

Amentum Pty Ltd is not responsible nor liable for any loss or damage of any sort incurred as a result of using the API.

Help us improve the quality of our web APIs by completing our 2 minute survey here.

Copyright Amentum Pty Ltd 2021.

Use this page to mock Geomag API in your testing and development.

Run our mock API sample using the open source WireMock library, or in the free edition of WireMock Cloud. You'll have a working API server simulating the behavior of Geomag API, which will allow you to keep building and testing even if the actual API you isn't currently available.

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