Two key metrics to keep an eye on for AI x Crypto: 

Tokens per second 
Transactions per second 

The scope of protocols you can build expands exponentially as these improve

Strongly believe Solana is the number one chain for inter-agent payment and coordination

Building the OS for Human to Agent Coordination at zo.me | Cypherpunk | Freedom Maximalist

High throughput and low tx cost. But more importantly it’s parallelized. You can’t do inter agent payments non parallel especially for nested calls. Sui is the other top contender