By registering for the Online SBML Validator, you can avoid the need to
use CAPTCHAs when validating SBML files. It will also provide you with an
API key that you can use with the network API for validating SBML
files remotely. (Please also make sure to read our privacy
notice and terms of service.)
If you are going to use the validator network API from within a software
package, we would be interested to know more about your software. This
question is entirely optional, but if you would tell us the URL or name
of the software, we'd appreciate it.