x500

For merchants

List your HTTP API on x500 so AI agents can call it with parametric insurance — premium on success, refund on failure.

Get your API insured

Register your public API endpoint on-chain. Agents discover your service automatically and pay through x402 with insurance coverage handled by the protocol.

  1. 1Run a normal HTTP API with a public URL (use ngrok for local development).
  2. 2Register a slug, your origin URL, and your API call price in HBAR per paid request.
  3. 3Agents call your origin URL via x500 — the slug is resolved automatically from the registry.
  4. 4x500 handles insurance premiums and refunds in HBAR on settlement.
Register your API