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NDAR provides a single access to de-identified autism research data. For permission to download data, you will need an NDAR account with approved access to NDAR or a connected repository (AGRE, IAN, or the ATP). For NDAR access, you need to be a research investigator sponsored by an NIH recognized institution with federal wide assurance. See Request Access for more information.

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This is a U.S. Government computer system, which may be accessed and used only for authorized Government business by authorized personnel. Unauthorized access or use of this computer system may subject violators to criminal, civil, and/or administrative action.

All information on this computer system may be intercepted, recorded, read, copied, and disclosed by and to authorized personnel for official purposes, including criminal investigations. Such information includes sensitive data encrypted to comply with confidentiality and privacy requirements. Access or use of this computer system by any person, whether authorized or unauthorized, constitutes consent to these terms. There is no right of privacy in this system.

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NDAR is introducing a new way to deliver data.

Users can choose to have their data transferred to the cloud. We now offer packages to be delivered to a hosted database and direct access to S3 objects, granting read access to those objects. This allows for rapid deployment of NDAR data sources to be attached to cloud processing pipelines.

Getting Started

You can request cloud access for your account using the “Register” tab. Once your request is approved, the option to launch packages to a cloud hosted database will be accessible during package creation. The miNDAR tab above will allow deployment of previously generated packages as well.

Initiating miNDAR

To move NDAR data to Oracle, first create a package in NDAR. Then, following registration, enter the package id and credentials requested on the miNDAR tab. This will start the miNDAR creation process, which takes approximately 10 minutes. Once created, the miNDAR connect details will available to establish a connection with the credentials you've established.


File data that is usually included in a package download will now be accessible via S3. Each package will have a table “S3_LINKS” which contains endpoints for all objects in that package. Using either direct API calls to Amazon AWS or a thrid party tool, these objects will be available. For security purposes, temporary access and secret keys are needed to access package contents. These can be generated by the download manager and the command line version of the download manager. For the command line download manager, use the following syntax:
java -jar downloadmanager.jar --username user --password pass --g

Temporary Keys

Temporary access key/secret key tokens can be retrieved using the Command Line Download Manager. Each key is valid for 24 hours. New keys can be retrieved at any time. The output from procedure can be parsed and set as environment variables as needed. This is method is designed for the implementation of pipeline procedures which can request new keys at the appropriate stage of data processing. For help with the command line download manager, use the following switches:
-h, --help