Pay-per-call APIs for AI agents — no signup, no API keys.
77 HTTP endpoints an agent can pay for autonomously with USDC on Base via the x402 protocol: an OpenAI-compatible LLM gateway, embeddings, web search, a code sandbox, live market data, verifiable randomness, and a prepaid off-chain metering rail for 100+ calls/min loops.
- 🌐 Live service & docs: https://x402.shizu.me
- 🚀 Quickstart examples:
x402-examples - 🤖 Machine surfaces: llms.txt · openapi.json · MCP tools · .well-known/x402
Every route quotes its price on a free unpaid request — try it:
curl -i https://x402.shizu.me/crypto