Try it

Declared agent:

curl -s https://disclosure.cloudsecurityalliance.ai/assess -H 'Agent-Disclosure: v=1, type=ai, mode=autonomous, authority=delegated'

No header:

curl -s https://disclosure.cloudsecurityalliance.ai/assess

Invalid value (treated as no header):

curl -s https://disclosure.cloudsecurityalliance.ai/assess -H 'Agent-Disclosure: v=1, type=ai, mode=sometimes, authority=delegated'

A payment of 12,000 from a declared autonomous agent:

curl -s "https://disclosure.cloudsecurityalliance.ai/payments?amount=12000" -H 'Agent-Disclosure: v=1, type=ai, mode=autonomous, authority=delegated'

Or build the header here