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GET
x402 service discovery
Free, no payment required. Returns the live price list — kept in sync with the actual middleware config so an out-of-band dashboard can’t drift from what the API enforces.

Request

Response

Schema

Tier history

  • 2026-05-05/label ($0.10) and /screen/light ($0.20) removed. Their data was merged into the new /screen/{chain}/{address} tier above for $0.10. Old paths now return 404.
  • 2026-04-30 — initial 4-tier launch.

Conventions

  • The endpoint strings are templates, not regex patterns. Use {chain} and {address} as placeholders matching the values from networks.
  • The price-list is the SINGLE SOURCE OF TRUTH at runtime — the middleware uses the same data to build payment-required quotes, so what’s listed is what you’ll be charged.

Response

200 - application/json

Successful Response

The response is of type Response Discovery Well Known X402 Json Get · object.