Topic
X402
3 posts on x402 — guides and lab notes from real runs on hardware we own. New posts land here automatically. Start anywhere, or grab the copy-paste prompts that ship with them.
- 5 min read
HTTP 402 & x402: The Web's Payment Code Finally Works (2026)
Reserved since 1991, HTTP 402 sat unused for 33 years. Now x402 ships the client half — so AI agents can pay per request. Here's how it works and why it matters.
- 5 min read
Why API keys break for autonomous AI agents
Stripe doesn't ship to LLMs. Every vendor signup form assumes a human at the door. Here is what changes when wallets become the access primitive.
- 4 min read
I built a memory API that AI agents can pay for
An LLM just paid me $0.001 to remember something. The agent has no account, no API key, no credit card. It just signs a USDC transfer and gets back a 200.
The AI agent build notes
Real costs, real tools, no fluff. M-F when I ship, publish, or learn something worth sending.