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mirrored listing x402 eip155:8453

APEX Runner: Cross Exchange Spread Signal

APEX Runner: Cross Exchange Spread Signal

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7000 (raw units)
price
1
calls / 30d
1
unique payers
2026-09-08
updated

Provider

apexrunner.ai · discovered, not yet claimed by its owner

Payment (x402 accepts[])

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x8D0663BBb967ebF1c047405A888DDf865f3E8854",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "7000",
    "maxTimeoutSeconds": 300
  }
]

Output schema

{
  "bazaar": {
    "category": "trading-signals",
    "description": "Real-time Kraken vs Hyperliquid cross-exchange arbitrage spread for BTC and ETH. Returns mid-price per exchange, gross and net spread %, arb direction, and viability vs 0.35% threshold. Sourced from APEX Runner's live cross-exchange arb monitoring database.",
    "example": {
      "active_arbs": 0,
      "arb_threshold_pct": 0.35,
      "best_net_spread_pct": -0.2,
      "best_spread_asset": "BTC",
      "cached_at": "2026-06-13T12:00:00+00:00",
      "interpretation": "No arb opportunities above 0.35% — best spread: BTC at -0.200%",
      "pairs": {
        "BTC": {
          "arb_active": false,
          "asset": "BTC",
          "direction": "kr_buy_hl_sell",
          "gross_spread_pct": 0.11,
          "hl_mid": 63762.5,
          "kr_mid": 63695.45,
          "net_spread_pct": -0.2
        }
      }
    },
    "info": {
      "input": {
        "method": "GET",
        "type": "http"
      },
      "output": {
        "active_arbs": "int — count of pairs above threshold",
        "arb_threshold_pct": "float — arb threshold (0.35%)",
        "best_net_spread_pct": "float — best net spread %",
        "best_spread_asset": "string — asset with highest net spread",
        "cached_at": "ISO8601 timestamp",
        "example": {
          "active_arbs": 0,
          "arb_threshold_pct": 0.35,
          "best_net_spread_pct": -0.15,
          "best_spread_asset": "BTC",
          "cached_at": "2026-06-13T12:00:00+00:00",
          "interpretation": "No arb opportunities above 0.35% — best spread: ETH at -0.150%",
          "pairs": {
            "BTC": {
              "arb_active": false,
              "asset": "BTC",
              "direction": "kr_buy_hl_sell",
              "gross_spread_pct": 0.11,
              "hl_mid": 63762.5,
              "kr_mid": 63695.45,
              "net_spread_pct": -0.2,
              "spread_vs_threshold": -0.55
            },
            "ETH": {
              "arb_active": false,
              "asset": "ETH",
              "direction": "kr_buy_hl_sell",
              "gross_spread_pct": 0.16,
              "hl_mid": 1681.45,
              "kr_mid": 1678.8,
              "net_spread_pct": -0.15,
              "spread_vs_threshold": -0.5
            }
          }
        },
        "interpretation": "string — plain-English arb summary",
        "pairs": "object — keyed by asset (BTC/ETH), each with direction, gross/net spread %, kr_mid, hl_mid, arb_active bool, spread_vs_threshold",
        "type": "json"
      }
    },
    "name": "APEX Cross-Exchange Spread",
    "outputSchema": {
      "active_arbs": "int",
      "arb_threshold_pct": "float",
      "best_net_spread_pct": "float",
      "best_spread_asset": "string",
      "cached_at": "string",
      "interpretation": "string",
      "pairs": "object"
    },
    "schema": {
      "properties": {
        "input": {
          "properties": {
            "queryParams": {
              "properties": {},
              "type": "object"
            }
          },
          "required": [
            "method"
          ],
          "type": "object"
        },
        "output": {
          "properties": {
            "example": {
              "properties": {
                "_apex": {
                  "properties": {
                    "evolution_runs": {
                      "type": "integer"
                    },
                    "instance": {
                      "type": "string"
                    },
                    "live_capital_deployed": {
                      "type": "boolean"
                    },
                    "live_trading": {
                      "type": "boolean"
                    },
                    "signal": {
                      "type": "string"
                    },
                    "signal_hash": {
                      "type": "string"
                    },
                    "source": {
                      "type": "string"
                    },
                    "trades_backing_signal": {
                      "type": "integer"
                    },
                    "verify_at": {
                      "type": "string"
                    },
                    "version": {
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "active_arbs": {
                  "type": "integer"
                },
                "arb_threshold_pct": {
                  "type": "number"
                },
                "best_net_spread_pct": {
                  "type": "number"
                },
                "best_spread_asset": {
                  "type": "string"
                },
                "cached_at": {
                  "type": "string"
                },
                "interpretation": {
                  "type": "string"
                },
                "pairs": {
                  "properties": {
                    "ETH": {
                      "properties": {
                        "arb_active": {
                          "type": "boolean"
                        },
                        "asset": {
                          "type": "string"
                        },
                        "direction": {
                          "type": "string"
                        },
                        "gross_spread_pct": {
                          "type": "number"
                        },
                        "hl_mid": {
                          "type": "number"
                        },
                        "kr_mid": {
                          "type": "number"
                        },
                        "net_spread_pct": {
                          "type": "number"
                        },
                        "spread_vs_threshold": {
                          "type": "number"
                        },
                        "timestamp": {
                          "type": "string"
                        }
                      },
                      "type": "object"
                    }
                  },
                  "type": "object"
                }
              },
              "type": "object"
            }
          },
          "type": "object"
        }
      },
      "type": "object"
    },
    "version": "1.0.0"
  }
}

Use it

curl

curl "https://apexrunner.ai/signals/cross-exchange-spread"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

JavaScript

const res = await fetch("https://apexrunner.ai/signals/cross-exchange-spread");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

Python

import httpx
res = httpx.get("https://apexrunner.ai/signals/cross-exchange-spread")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Machine-readable

Everything on this page is also available as clean JSON at /resources/12533.json, and this resource appears in /discovery/resources and /discovery/search.