We encourage anyone interested in building tools that interoperate with Dataverse to utilize our APIs. The Dataverse community has supplied Client Libraries for Python, R, and Java and we are always interested in helping the community develop libraries for additional languages. The Apps section links to open source Javascript, PHP, Python, and Java code that you can learn from while developing against Dataverse APIs.
We document the Dataverse API in five sections:
We use the term “native” to mean that the API is not based on any standard. For this reason, the Search API and Data Access API could also be considered “native” and in the future we may reorganize the API Guide to split the Native API section into “Datasets API”, “Files” API, etc.
Most Dataverse APIs require the use of an API token. (In code we sometimes call it a “key” because it’s shorter.) Instructions for getting a token are described in the Account Creation + Management section of the User Guide.
There are two ways to pass your API token to Dataverse APIs. The preferred method is to send the token in the X-Dataverse-key HTTP header, as in the following curl example:
curl -H "X-Dataverse-key: 8b955f87-e49a-4462-945c-67d32e391e7e" https://demo.dataverse.org/api/datasets/:persistentId?persistentId=doi:TEST/12345
Throughout this guide you will often see Bash shell envionmental variables being used, like this:
export API_TOKEN='8b955f87-e49a-4462-945c-67d32e391e7e'
curl -H "X-Dataverse-key: $API_TOKEN" https://demo.dataverse.org/api/datasets/:persistentId?persistentId=doi:TEST/12345
The second way to pass your API token is via an extra query parameter called key in the URL like this:
curl "https://demo.dataverse.org/api/datasets/:persistentId?persistentId=doi:TEST/12345&key=$API_TOKEN"
Use of the X-Dataverse-key HTTP header form is preferred because putting the query parameters in URLs often results in them finding their way into web server access logs. Your API token should be kept as secret as your password because it can be used to perform any action as you in the Dataverse application.
Rather than using a production installation of Dataverse, API users are welcome to use http://demo.dataverse.org for testing.
If you are using the APIs for an installation of Dataverse hosted by your institution, you may want to reach out to the team that supports it. At the top of the Dataverse installation’s home page, there should be a form you can fill out by clicking the “Support” link.
If you are having trouble with http://demo.dataverse.org or have questions about the APIs, please feel free to reach out to the Dataverse community via https://groups.google.com/forum/#!forum/dataverse-community .