Applicant Versions & WSDLs

Applicant S2S Version Table

The only supported System to System (S2S) version is:

  • V2.0

The tables below list the web services that are supported in the Applicant System to System (S2S) V2.0 web services library.

Feature Web Service Name
Get Application Info GetApplicationInfo
Get Application List
(Replaced by Get Submission List)
(Retiring December 31, 2019)
Get Application Status Detail
(Replaced by Get Application Info)
(Retiring December 31, 2019)
Get Application Zip GetApplicationZip
Get Opportunities Expanded
(Replaced by Get Opportunity List)
(Retiring December 31, 2019)
Get Opportunity List GetOpportunityList
Get Submission List GetSubmissionList
Submit Application SubmitApplication

The following Applicant S2S V2.0 web services are only used for NIH ASSIST.

Feature Web Service Name
Authenticate AOR AuthenticateAOR
Submit Application As Third Party SubmitApplicationAsThirdParty
Get Application List As Third Party
(Replaced by Get Submission List As Third Party)
(Retiring December 31, 2019)
Get Application Info As Third Party GetApplicationInfoAsThirdParty
Get Submission List As Third Party GetSubmissionListAsThirdParty

Web services versions have no impact on the form versions used. Any version of the forms can be submitted and retrieved by S2S V2.0.



Version 2.0 (V2.0)

V2.0 is the latest library of web services. It uses Message Transmission Optimization Mechanism (MTOM) to support streaming of large submissions.

The endpoint and WSDL information for the Applicant Web Service Library V2.0 is provided below:
Training Environment Endpoint:
Production Environment Endpoint:
WSDL: ApplicantWebServices-V2.0.wsdl


Other S2S Resources

The following is the URL for the Grant Application Meta Data in

Training Environment:

Production Environment: