Below are the technical specifications for OpenSocial, gadgets, and the REST/RPC protocols. Check out the specification process used to evolve these specs.

OpenSocial 2.0 (Working draft)

• Release Notes
• OpenSocial Specification
• Core Gadget Spec
• Core API Server Spec
• Core Data Spec
• Social Gadget Spec
• Social API Server Spec
• Social Data spec
• OpenSocial Templating Spec
• OpenSocial WAP Extension

View entire draft in SVN

OpenSocial 1.1 New!

• Release Notes
• OpenSocial Specification
• Core Gadget Spec
• Core API Server Spec
• Core Data Spec
• Social Gadget Spec
• Social API Server Spec
• Social Data spec
• OpenSocial Templating Spec
• OpenSocial WAP Extension

View entire draft in SVN

OpenSocial 1.0

• OpenSocial Specification
• Core Gadget Spec
• Core API Server Spec
• Core Data Spec
• Social Gadget Spec
• Social API Server Spec
• Social Data spec
• OpenSocial Templating Spec

View entire draft in svn

Archives

OpenSocial v0.9

• OpenSocial Specification
• Gadgets Specification
• OpenSocial Data Pipelining
• OpenSocial Markup Language Tags
• OpenSocial Templating
• REST Protocol
• RPC Protocol
• Release Notes

View entire spec in svn

OpenSocial v0.8.1

• OpenSocial Specification
• Gadgets Specification
• REST Protocol
• RPC Protocol

Other resources

• Release Notes
• Spec Process

OpenSocial (v0.8)

• OpenSocial Specification
• Gadgets Specification
• RESTful API Specification

OpenSocial (v0.7)

• OpenSocial Specification
• Gadgets Specification