The SCIM API is used by SCIM-enabled Identity Providers (IdPs) to automate provisioning of GitHub organization membership. The GitHub API is based on version 2.0 of the SCIM standard. The GitHub SCIM endpoint that an IdP should use is: https://api.github.com/scim/v2/organizations/:org/.
Please note that the SCIM API is available only to organizations on GitHub Enterprise Cloud with SAML SSO enabled. For more information about SCIM, see "About SCIM" in the GitHub Help documentation.