This Work Group operates under the Kantara IPR Policy - Option Patent & Copyright: Reciprocal Royalty Free with Opt-Out to Reasonable And Non discriminatory (RAND) (HTML version).

Home | FAQ | Protocol Spec | Trust Model Spec | Chat | Join | List | Archive (Mailman) | Archive (Google) | Calendar

We're working on feature tests at the UMA interop site, kindly hosted by the OSIS folks. Head over to to see and contribute to the progress, and to register your solution.

The purpose of the UMA Work Group (charter) is to develop specs that let an individual control the authorization of data sharing and service access made between online services on the individual's behalf, and to facilitate interoperable implementations of the specs. Read the spec, join the group, get involved!

Follow us on Twitter – our handle is @UMAWG and we often use the hashtag #UMAWG. (Short link for this page is – spread the word.) Find us on Facebook too.


  • June 16: The UMA group is collecting information for interop testing. Head to our OSIS area (short link – spread the word) to learn more.
  • May 10: By acclamation, the UMA Work Group approved Maciej Machulak for another vice-chair term. Thanks and congrats to Maciej!
  • May 2: The slide deck from our February 28 Tech Talk at Google's Mountain View campus discusses how the Street Identity project would become even more attractive if it were UMA-enabled. Check it out! And stay tuned for video of the Tech Talk.




  • April 15: The UMA FAQ (short link – spread the word) is starting to collect material in languages other than English. Thanks to Domenico Catalano, we now have an UMA introduction in Italian.
  • Chair: Eve Maler
  • Vice-Chair: Maciej Machulak
  • Full leadership team list
  • Read about Kantara leadership roles
Teleconference Info