{
  "x402Version": 2,
  "id": 12528,
  "slug": "12528",
  "resource": "https://apexrunner.ai/signals/cross-asset-contagion",
  "description": "APEX Runner: Cross Asset Contagion Signal",
  "type": "http",
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "payTo": "0x8D0663BBb967ebF1c047405A888DDf865f3E8854",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "amount": "7000",
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  "outputSchema": {
    "bazaar": {
      "category": "trading-signals",
      "description": "Exotic signal at $15. When BTC moves sharply, predicts ETH/SOL/AVAX response magnitude and lag based on APEX's real cross-exchange grid fill timing observations. Returns predicted move % and lag minutes per coin. Price correlation derived from Kraken live exchange data — same venue APEX trades on.",
      "example": {
        "btc_move_1h_pct": -2.3,
        "btc_move_4h_pct": -3.1,
        "contagion_active": true,
        "contagion_severity": "MODERATE",
        "data_points_used": 268,
        "predictions": {
          "ETH": {
            "confidence": 0.72,
            "historical_correlation": 0.91,
            "lag_minutes": 8,
            "predicted_move_pct": -2.1
          }
        },
        "recommended_action": "REDUCE_EXPOSURE",
        "valid_for_seconds": 900
      },
      "info": {
        "input": {
          "method": "GET",
          "type": "http"
        },
        "output": {
          "btc_move_1h_pct": "float — BTC price change % over last 1 hour",
          "btc_move_4h_pct": "float — BTC price change % over last 4 hours",
          "contagion_active": "boolean — true when abs(4h move) >= 1.5%",
          "contagion_severity": "string — LOW / MODERATE / HIGH / EXTREME",
          "data_points_used": "integer — HL grid fills analyzed for correlation",
          "example": {
            "btc_move_4h_pct": -3.1,
            "contagion_active": true,
            "contagion_severity": "MODERATE",
            "recommended_action": "REDUCE_EXPOSURE"
          },
          "predictions": "object — keyed by coin (ETH/SOL/AVAX), each with predicted_move_pct, lag_minutes, confidence, historical_correlation",
          "recommended_action": "string — REDUCE_EXPOSURE / HEDGE_ALTS / SCALE_IN / MONITOR",
          "type": "json"
        },
        "why_apex": {
          "live_system": "APEX trades real capital 24/7 on Kraken, Coinbase, and Hyperliquid simultaneously",
          "multi_exchange": "Cross-exchange data synthesis unavailable from any single-venue provider",
          "not_backtested": "All signals derived from live order flow — 2,988 real grid trades, 82.8% win rate across Kraken, Coinbase, and Hyperliquid",
          "self_evolving": "AI evolution engine runs nightly, signal logic improves from real outcomes"
        }
      },
      "name": "APEX Cross-Asset Contagion",
      "outputSchema": {
        "btc_move_4h_pct": "float",
        "contagion_active": "boolean",
        "contagion_severity": "string",
        "predictions": "object",
        "recommended_action": "string"
      },
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        "properties": {
          "input": {
            "properties": {
              "queryParams": {
                "properties": {},
                "type": "object"
              }
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            "required": [
              "method"
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            "type": "object"
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          "output": {
            "properties": {
              "example": {
                "properties": {
                  "_apex": {
                    "properties": {
                      "evolution_runs": {
                        "type": "integer"
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                      "instance": {
                        "type": "string"
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                      "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"
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                    },
                    "type": "object"
                  },
                  "btc_move_1h_pct": {
                    "type": "number"
                  },
                  "btc_move_4h_pct": {
                    "type": "number"
                  },
                  "contagion_active": {
                    "type": "boolean"
                  },
                  "contagion_severity": {
                    "type": "string"
                  },
                  "correlation_source": {
                    "type": "string"
                  },
                  "data_points_used": {
                    "type": "integer"
                  },
                  "predictions": {
                    "additionalProperties": {
                      "properties": {
                        "confidence": {
                          "type": "number"
                        },
                        "correlation_source": {
                          "type": "string"
                        },
                        "historical_correlation": {
                          "type": "number"
                        },
                        "lag_minutes": {
                          "type": "integer"
                        },
                        "predicted_move_pct": {
                          "type": "number"
                        }
                      },
                      "type": "object"
                    },
                    "type": "object"
                  },
                  "recommended_action": {
                    "type": "string"
                  },
                  "timestamp": {
                    "type": "string"
                  },
                  "valid_for_seconds": {
                    "type": "integer"
                  }
                },
                "type": "object"
              }
            },
            "type": "object"
          }
        },
        "type": "object"
      },
      "version": "1.0.0"
    }
  },
  "tags": [
    "bazaar"
  ],
  "sourceHost": "apexrunner.ai",
  "lastUpdated": "2026-09-08T23:55:10.25Z",
  "quality": {
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    "uniquePayers30d": 1,
    "lastCalledAt": "2026-09-08T23:55:10.023Z"
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  "featured": false,
  "provider": {
    "host": "apexrunner.ai",
    "manifest_name": "apexrunner.ai",
    "source": "cdp-mirror",
    "source_manifest_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "submitted_at": "2026-09-18T22:00:31.484Z"
  }
}