The ORCID Mock API aims to provide an environment where developers can start to integrate ORCID into their systems before a release of the production environment. Like the production version, the mock supports tier 1 and tier 2 access. Tier 2 is protected using OAuth 2. Please note that searching has not been implemented in the Mock API.
UPDATE April 2012: Since the launch of the ORCID Sandbox site, the Mock API Web Application has been deprecated. You may now access a test version of the ORCID registry at sandbox.orcid.org, and may register for test client credentials for the API at Register a client applciation.