Inferno on HealthIT.gov is a public service for running select FHIR conformance tests built with Inferno. This includes tests relevant to the ONC Health IT Certification Program and tests that target other popular FHIR Implementation Guides.
Evaluate a publicly accessible test server to the ONC (g)(10) Standardized API Certification Criterion using this public testing instance of Inferno.
Validate individual FHIR Resources to the base FHIR specification or specific FHIR Profiles
Inferno is an open source tool for creating, executing and sharing automated conformance tests for the FHIR Standard. Inferno on HealthIT.gov hosts several tests created with Inferno, but Inferno is designed so anyone can create and host their own tests.
Inferno on HealthIT.gov is a public host for the (g)(10) Standardized API Test Kit, which is an approved test method for the §170.315(g)(10) criterion within the ONC Certification Program. It also contains tests for several popular FHIR Implementation Guides. Browse the Test Kit page for a list of tests that are currently available.
Inferno is as flexible as the FHIR standard, and tests need to be created for each unique FHIR use case. The Inferno Framework provides tools and common approaches to testing systems for FHIR conformance. Visit the Inferno Framework Documentation Site to learn more.
Inferno makes it easy to run tests on your local machine or host a shared copy behind your firewall. Inferno tests are packaged in Test Kits, which are standalone applications tuned to Implementation Guide or certification criteria. Each Test Kit on Inferno on HealthIT.gov provides a link to its repository where you can learn how to download and run it locally.
Inferno's user interface is powered by an open, full-featured API to enable integration into external tools or continuous integration pipelines. Learn more in the Inferno Framework Documentation Site.
Comprehensive testing solutions need more than just tests. Inferno provides additional utilities, such as Reference Applications, that can be optionally integrated alongside tests within Inferno Test Kits.
Inferno on HealthIT.gov has been updated to include the US Quality Core Test Kit, which validates server and client implementations against the 2026 US Quality Core Implementation Guide v0.5.0. The US Quality Core IG defines FHIR API expectations for exchanging USCDI+ Quality V1 data and is intended to support quality measurement and related health IT workflows.
The Inferno Resource Validator Service, a service hosted on inferno.healthit.gov/validator for validating individual FHIR® Resources to the base FHIR specification or specific FHIR Profiles, is planned to be discontinued in an upcoming update as soon as August 2026. Users may consider using other available services for FHIR Resource validation. One example of such a service as of July 2026 is the HL7® FHIR® Validator hosted on validator.fhir.org. Information about the HL7® FHIR® Validator, including its FHIR Resource validation capabilities, is available on the HL7® Confluence Pages. Questions and comments about the planned discontinuation of the Inferno Resource Validator Service may be submitted to the ONC Health IT Feedback and Inquiry Portal.
The Inferno team released and deployed to Inferno on HealthIT.gov several significant updates, including