GetNextId.com

Global unique counters for your infrastructure.

Use getnextid.com to increment your build numbers etc.

Get current counter value:

$ curl -s "http://getnextid.com/counter/your.counter.name?auth=YOUR_PASSWORD"
1

Increment counter and get new value:

$ curl -s -X POST "http://getnextid.com/counter/your.counter.name?auth=YOUR_PASSWORD"
2

Your counters are password-protected.