|Offline - tagstat is now offline. Please use Taginfo instead.|
Tagstat was a system providing statistics on tag usage within the OpenStreetMap database. It was similar to Tagwatch, however whilst Tagwatch divided the planet into large areas (countries, continents, planet), Tagstat offered statistics about the whole planet.
Both Tagstat and Tagwatch are now discontinued. A replacement service is available at Taginfo.
Development & API
It had an XML API, and comment features allowing users to comment on a tag or key, and a mechanism for voting comments up and down.