Page Speed Online has a shiny new API- Google Developers Blog
May 9, 2011

Summary
This post announces the release of a new API for Page Speed Online, enabling programmatic access to website performance analysis. This expands the capabilities beyond the existing web interface, allowing developers to integrate performance testing into their workflows and build automated optimization tools.
More from the Website Optimization and Experimentation APIs trail
- Introducing Autotrack for analytics.js- Google Developers Blog
- IISpeed accelerates visitnapavalley.com, with PageSpeed optimization by Google- Google Developers Blog
- Crawling the infinite scroll- Google Developers Blog
- Measuring network performance with Resource Timing API- Google Developers Blog
- Speeding up mobile pages with mod_pagespeed and ngx_pagespeed- Google Developers Blog