You need to give Coinbase your email and sign up to their platform to use their x402 facilitator on mainnet. And potentially let them censor your business/agent.
I say fuck that.
Just published a simple library that helps you run your own x402 facilitator instead of having to rely on Coinbase or any other third party.
Sellers should own their payments rails completely. We don't need middlemen here. :))
Works with any HTTP framework. You only need to adda few lines of code.
It's very basic right now but I will add more features if people are interested.