Common Alerting Protocol Validator

Validate a CAP Alert

Paste your CAP XML Alert in the text area below.


Validate CAP Alert on the Web

Paste a URL to a CAP XML Alert in the text field below.

EPA Airnow EnviroFlash CAP Alerts

Click a link below to view and validate a recent CAP Alert issued by the Environmental Protection Agency's Airnow Enviroflash Alerting Service.

About CAP

The Common Alerting Protocol (CAP) is a simple, flexible data interchange format for collecting and distributing “all-hazard” safety notifications and emergency warnings over information networks and public alerting systems. It is maintained by OASIS.

About RCAP

RCAP is an implementation of the CAP document protocol in Ruby. It allows for the creation of RCAP messages from Ruby applications and the parsing of external messages.

RCAP currently supports CAP 1.0, 1.1 and 1.2.