• If your company currently makes more than $50K in annual gross revenues or has raised funds in excess of $50K, or
• If you are working on a government project, or
• If you are working on funded educational research, or
• If you exceed the usage limits of the free community account

The free community account can be used for

• Non-commercial personal projects, or
• Exploratory commercial or government development, e.g., evaluating if Cesium ion will meet your needs, or
• Unfunded educational activities

If you are not sure if you need a free or paid account, contact our sales team.

The Cesium ion REST API makes it possible to query and search metadata for models that were tiled with the BIM/CAD Tiler with Database. More API capabilities to work with these models will be added over time.

No additional quotas are in effect during the Technology Preview period for this tiler and related API endpoints. However, usage will count towards your existing quotas for streaming and storage.

Cesium ion provides third-party commercial global imagery assets for your projects, including data from Bing Maps, Google Maps, and Azure Maps. There are assets for multiple use cases, such as satellite imagery, satellite imagery with labels, labels only, and roadmaps.

Third-party commercial data usage is measured in sessions. If you use a combination of Global Imagery data sources in a quota period, the sessions for all sources are combined to measure your usage for that period.

Azure Maps imagery is currently available as a Technology Preview. It should not be used for production.

We accept all major credit and debit cards, as well as direct bank transfers from US banks.

To pay via purchase order, contact our sales team.

You can choose whether to get billed monthly or annually when you upgrade to a paid tier.

All Cesium ion plans have no limit to the number of apps and end users for your apps. You can build as many applications as you would like that use the same Cesium ion account for streaming 3D assets. There is also no limit to the number of unique end users that access your apps.

All of the usage generated by your apps and end users just needs to fit into the usage limits of your Cesium ion account.

See Understanding and Optimizing ion Quotas.

No worries, it happens. We will contact you.

Post your question on the Cesium community forum to get an answer from Cesium team members and others in the community and to contribute to a knowledge base that helps everyone.

While we do our best to respond to everyone, users with a commercial, premium, or custom account can expect guaranteed and faster responses on the Cesium community forum and may also submit requests for individualized support from Cesium staff on topics too sensitive to post to the community forum.

Send us a private message on the community forum.