14 min read
The Agentic Payments Stack: x402, MPP, AP2, ACP, and L402
Five protocols want to let AI agents pay for things. They turned out not to be competing — mostly. A map of who sits where, and which numbers you shouldn't trust.
Agent payments
How software pays for things on its own: the protocols, who's behind them, and how agents come to trust each other.
All posts · 3 posts
10 min read
ERC-8004: Building a Trust Layer for AI Agents Onchain
ERC-8004 gives AI agents verifiable identity, reputation, and validation on Ethereum. Here's what the standard actually defines, why it matters, and where it's headed.
6 min read
Exploring the x402 Standard
x402 turns HTTP's long-dormant 402 status code into a way to pay for a single API call with stablecoins. What goes over the wire, who does what, and where it falls short.