Disclaimer
This protocol specification is a draft. It's currently under constant revision.
This is the protocol specification for the untrusted prekey server for the Off-the-Record Messaging Protocol version 4.
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
The OTR team does not review implementations or specify which ones are compliant are not. Software implementers are free to implement this specification in any way they choose - under limitations of software licenses if using existing software.