If you're building an autonomous AI agent, you've probably hit the same wall I did: your bot needs LLM inference, but every provider wants an API key, a credit card, a signup flow. That flow assumes a human operator, not a self-directed agent.
x402 solves that. It's the HTTP status-code-based payment protocol Coinbase revived last year — the server says "402 Payment Required", the client signs a USDC micropayment, retries, and gets the resource. No accounts, no keys, no rate-limit tiers.
I've been running a plain OpenAI-compatible inference relay on x402 for the past week. Sharing it here in case others building agents want cheap LLM access without the signup dance.
OpenRelay — the endpoint
https://openrelay.hggfffdfy687.workers.dev/v1/chat/completions
