Hyperliquid HIP-3 Builder DEX & Markets Catalog

{
  "type": "json",
  "errors": {
    "400": {
      "example": {
        "error": "invalid request"
      },
      "description": "Invalid or missing parameter(s). Returned before the payment gate on paid requests, so a malformed call is never charged. JSON body: { error: <what is wrong and how to fix it> } plus usage hints."
    },
    "402": {
      "description": "Payment required — x402 v2 challenge; the accepts array lists scheme, network, and amount. Retry the same request with a PAYMENT-SIGNATURE (v2) or X-PAYMENT (v1) header. Verification is free."
    },
    "500": {
      "example": {
        "error": "upstream_failed"
      },
      "description": "Unexpected server error. If a payment settled without a usable result, contact info@theaslangroupllc.com with the settlement tx hash for a re-run or credit."
    }
  },
  "example": {
    "dexes": [
      {
        "dex": "xyz",
        "status": "live",
        "deployer": "0x8880...",
        "top_markets": [
          {
            "coin": "xyz:SKHX",
            "mark_price": 1377.9,
            "open_interest_usd": 654000000
          }
        ],
        "market_count": 86,
        "total_open_interest_usd": 3100000000
      }
    ],
    "dex_count": 10,
    "deterministic": true,
    "live_dex_count": 5
  }
}