⚠ Updates on the Calisphere publication service during our transition to the new Calisphere harvesting system:

As mentioned in our recent progress update to develop the new Calisphere harvester, we have transitioned all harvesting operations to the new harvesting system this year. Here are the details of our deployment strategy: 

  • On June 11, 2024: As our first step, we published the first new index using the new system.
  • Work in progress: As part of our upgrade to the new Calisphere harvester, we have been working on updating previously established harvest methods (to programmatically fetch and map your data). Additional status details for each platform are available on our Supported Harvest Methods and Platforms page.

Please feel free to use the form below to submit requests to harvest and re-harvest collections; we will queue up your requests to publish your collections to the new index. 


Digital collections evolve; items are added and deleted and metadata changes. Our aim is to reflect changes to your collections as quickly as possible in Calisphere.

The Process

Our metadata harvest works on a collection-by-collection basis. When you update or add to a collection (or collections) in your local system -- even if it's just a single item--we will re-harvest the whole collection(s). Simply contact us, using the form below, to initiate the re-harvest. At this time, any re-harvested collection will directly replace the previously-harvested version of the collection; as long as your local identifiers for your objects remain the same, the URLs won't change for the previously-published items in Calisphere.

Currently, harvest is on-request. That is, we will harvest (or re-harvest) a given collection only when expressly notified. Contact us if you anticipate regular additions or changes to a collection(s).

Updating Collections in DPLA

Changes and additions to collections in Calisphere will subsequently be reflected on the Digital Public Library of America (DPLA) website.

Need us to re-harvest a published collection?

Let us know by submitting this form!