CILogon was developed under support by the National Science Foundation and the Department of Energy. XSEDE provides basic operational support for CILogon. CILogon is further sustained by a non-profit subscription model administered by the National Center for Supercomputing Applications (NCSA) at the University of Illinois. Becoming a subscriber helps to support CILogon's long-term sustainability and provides additional collaboration management capabilities. CILogon subscribers receive contracted support for CILogon services under a detailed service level agreement.

2021 Service Tiers

Each year, the NCSA finance office sets the pricing for CILogon service tiers after a review of costs and associated account surplus/deficit to sustain our non-profit operations. The 2021 CILogon service tiers are:

Basic Authentication (No charge for academic research projects)

Essential Service ($12,500 per year)

Full Service ($35,000 per year)

  • OpenID Connect Provider (with client management via COmanage and OAuth API)

  • Shibboleth InCommon SAML Service Provider

  • X.509 Certification Authority services

  • COmanage Registry (dedicated instance with custom DNS name, support for custom plug-ins, and Platform Admin access)

  • OpenLDAP Directory


  • pyFF MDQ Server

  • Customized look-and-feel of Login page

  • Federated access to AWS, Azure, Google Cloud, and IBM Cloud

  • SAML Attribute Authority (not registered InCommon)

  • Grouper Access Management

  • SciTokens JWT Issuer

  • Provided under a detailed service level agreement

Federation Level (Contact us for a quote)

  • CILogon services provided via a regional, national, or international federation

Internal rates are available to University of Illinois subscribers.

2021 Service Agreements

The 2021 CILogon subscription agreement documents are available for download:

CILogon subscription agreements are managed by the University of Illinois. We kindly ask that your purchasing office refrain from requesting modifications to these agreements unless specifically required by law or regulation, because negotiation of custom agreement language creates a significant overhead for CILogon staff and the University of Illinois contracts office. Also, please be sure to work with your purchasing office to obtain an official signature on the agreement, because typically only a small number of individuals at an organization have contract signing authority.

Please contact if you're ready to subscribe or if you have any questions.

Thanks to the support of funding agencies, partner projects, and subscribers, CILogon is able to maintain a commitment to open source software development and a focus on the needs of the academic research community.