I've been thinking about doing something a little similar in spirit to this, namely smart payment credentials for LLMs to protect against misuse in situations where you have an LLM that makes buy/no buy decisions.

The idea being to make sure that a payment credential has been requested by a legitimate chain and only then provide a single-use token (or similar).

Is there anyone working on agents that can consummate transactions out there who is thinking about this area that might like to chat? Email address is in my profile if so.