Recently, I've been keeping an eye on x402. Some other big players are also working on their own projects. The founder of Circle spearheaded @catena_labs (23m raised). They developed the Agent Commerce Kit (ACK). Here's the intro: https://www.(agentcommercekit.com)/overview/introduction Former Stripe crypto and AI partnerships lead Louis Amira and former Stripe crypto engineering lead David Noël-Romas launched @atxp_ai (19m raised). Documentation here: https://docs.atxp.ai/atxp @crossmint is another payment project I'm closely following. They have a close collaboration with Tempo, and recently, their researchers' introduction to the x402 project has gained quite a bit of attention. This is a natural result of their deep focus in the payment space~