FETCH402
← Protocol index

Resource / 228

healthy

Kronos Crypto Data & Forecasts.

GET https://kronossignals.com/api/v1/forecast/doge ↗

Dogecoin (DOGE) price direction forecast. Kronos-base (60-path Monte-Carlo) ML model, cached ~20 min — switched from composite 2026-07-10. Measured on predictions actually served: 62% directional over 3,300+ scored DOGE forecasts — above our ~54% all-asset headline; verify per-asset at /api/stats (beta_accuracy). Falls back to the composite heuristic if the cache is briefly stale. Pay-per-call via x402 on Base USDC. Live scored track record at /api/stats — not a backtest.

Eligibility
probeable
Failures
0
Last quote
2026-08-12 22:00:01 UTC
Last probe
2026-08-12 22:00:01 UTC
Payment requirements / accepts[] 1 options
State Network Scheme Atomic amount Asset payTo / untrusted
active eip155:8453 exact 50000 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 0x36038e1d712c5e39f35952164ec58ec2b96caee7

All advertised payment options are stored. Base (`eip155:8453`) is the operational network for ranking and canaries; non-Base options remain visible for transparency.

Probe evidence 1 recent
healthy 2026-08-12 22:00:01 UTC GET · HTTP 402 · 120ms · accepts 1 · base 1 ok
Request
GET https://kronossignals.com/api/v1/forecast/doge
Robots
error
Note
robots_error:{:robots_http_status, 404};http_402;accepts=1;base=1
Accepts fingerprint
a35df5f8bcb99f350a876f1c0eab6c384952b77e5a1b6ebb43394c0568dcce6e

Accepts snapshot

[
  {
    "amount": "50000",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "assetTransferMethod": null,
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "maxTimeoutSeconds": 300,
    "network": "eip155:8453",
    "payTo": "0x36038e1d712c5e39f35952164ec58ec2b96caee7",
    "paymentFlow": null,
    "raw": {
      "amount": "50000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "max_timeout_seconds": 300,
      "network": "eip155:8453",
      "payTo": "0x36038e1d712c5e39f35952164ec58ec2b96caee7",
      "pay_to": "0x36038e1d712c5e39f35952164ec58ec2b96caee7",
      "scheme": "exact"
    },
    "scheme": "exact"
  }
]

PaymentRequired raw 

{
  "accepts": [
    {
      "amount": "50000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x36038e1d712c5e39f35952164ec58ec2b96caee7",
      "scheme": "exact"
    }
  ],
  "error": "Payment required",
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "method": "GET",
          "pathParams": {},
          "queryParams": {
            "horizon": "1h"
          },
          "type": "http"
        },
        "output": {
          "example": {
            "accuracy_note": "Kronos-base model (switched from composite 2026-07-10). Measured on predictions actually served: 62% directional over 3,300+ scored DOGE forecasts — above the ~54% all-asset headline. Prior composite record (36.1%/n147) retained at /api/stats. Verify per-asset at /api/stats (beta_accuracy.per_asset).",
            "asset": "DOGE-USD",
            "beta": false,
            "cache_age_seconds": 180,
            "cached": true,
            "disclaimer": "Kronos-base ML forecast for DOGE-USD, cached; may briefly fall back to the composite heuristic. Informational only, not financial advice.",
            "forecast": {
              "confidence": 0.55,
              "expected_close": null,
              "horizon_bars": 1,
              "pred_volatility": null,
              "quantiles": null,
              "range_high": 0.186,
              "range_low": 0.174,
              "up_prob": 0.55
            },
            "generated_at": "2026-07-03T10:00:00.000Z",
            "horizon": "1h",
            "model": "kronos-base-60path-t1-v2",
            "model_type": "kronos_ml",
            "price": {
              "atr": 0.004,
              "close": 0.18
            },
            "source": "Kronos-base (cached, 60-path MC)"
          },
          "type": "json"
        }
      },
      "routeTemplate": ":var1",
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "additionalProperties": false,
            "properties": {
              "method": {
                "enum": [
                  "GET"
                ],
                "type": "string"
              },
              "pathParams": {
                "type": "object"
              },
              "queryParams": {
                "properties": {
                  "horizon": {
                    "default": "1h",
                    "description": "Forecast horizon: 1h = 1-hour candles, 4h = 4-hour candles, 24h = daily candles",
                    "enum": [
                      "1h",
                      "4h",
                      "24h"
                    ],
                    "type": "string"
                  }
                },
                "type": "object"
              },
              "type": {
                "const": "http",
                "type": "string"
              }
            },
            "required": [
              "type",
              "method"
            ],
            "type": "object"
          },
          "output": {
            "properties": {
              "example": {
                "type": "object"
              },
              "type": {
                "type": "string"
              }
            },
            "required": [
              "type"
            ],
            "type": "object"
          }
        },
        "required": [
          "input"
        ],
        "type": "object"
      }
    }
  },
  "resource": {
    "description": "Dogecoin (DOGE) price direction forecast. Kronos-base (60-path Monte-Carlo) ML model, cached ~20 min — switched from composite 2026-07-10. Measured on predictions actually served: 62% directional over 3,300+ scored DOGE forecasts — above our ~54% all-asset headline; verify per-asset at /api/stats (beta_accuracy). Falls back to the composite heuristic if the cache is briefly stale. Pay-per-call via x402 on Base USDC. Live scored track record at /api/stats — not a backtest.",
    "mimeType": "application/json",
    "serviceName": "Kronos Crypto Data & Forecasts",
    "tags": [
      "dogecoin",
      "doge",
      "crypto",
      "price-forecast",
      "machine-learning",
      "ai-agents",
      "x402"
    ],
    "url": "https://kronossignals.com/api/v1/forecast/doge"
  },
  "x402Version": 2
}

Response headers

{
  "age": "0",
  "cache-control": "public, max-age=0, must-revalidate",
  "content-type": "application/json",
  "date": "Wed, 12 Aug 2026 22:00:01 GMT",
  "payment-required": "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",
  "server": "Vercel",
  "strict-transport-security": "max-age=63072000",
  "transfer-encoding": "chunked",
  "x-matched-path": "/api/v1/forecast/doge",
  "x-vercel-cache": "MISS",
  "x-vercel-id": "iad1::iad1::46gv7-1786572001742-0f9f87a730ae"
}

Response body 

{
  "accepts": [
    {
      "amount": "50000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x36038e1d712c5e39f35952164ec58ec2b96caee7",
      "scheme": "exact"
    }
  ],
  "error": "Payment required",
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "method": "GET",
          "pathParams": {},
          "queryParams": {
            "horizon": "1h"
          },
          "type": "http"
        },
        "output": {
          "example": {
            "accuracy_note": "Kronos-base model (switched from composite 2026-07-10). Measured on predictions actually served: 62% directional over 3,300+ scored DOGE forecasts — above the ~54% all-asset headline. Prior composite record (36.1%/n147) retained at /api/stats. Verify per-asset at /api/stats (beta_accuracy.per_asset).",
            "asset": "DOGE-USD",
            "beta": false,
            "cache_age_seconds": 180,
            "cached": true,
            "disclaimer": "Kronos-base ML forecast for DOGE-USD, cached; may briefly fall back to the composite heuristic. Informational only, not financial advice.",
            "forecast": {
              "confidence": 0.55,
              "expected_close": null,
              "horizon_bars": 1,
              "pred_volatility": null,
              "quantiles": null,
              "range_high": 0.186,
              "range_low": 0.174,
              "up_prob": 0.55
            },
            "generated_at": "2026-07-03T10:00:00.000Z",
            "horizon": "1h",
            "model": "kronos-base-60path-t1-v2",
            "model_type": "kronos_ml",
            "price": {
              "atr": 0.004,
              "close": 0.18
            },
            "source": "Kronos-base (cached, 60-path MC)"
          },
          "type": "json"
        }
      },
      "routeTemplate": ":var1",
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "additionalProperties": false,
            "properties": {
              "method": {
                "enum": [
                  "GET"
                ],
                "type": "string"
              },
              "pathParams": {
                "type": "object"
              },
              "queryParams": {
                "properties": {
                  "horizon": {
                    "default": "1h",
                    "description": "Forecast horizon: 1h = 1-hour candles, 4h = 4-hour candles, 24h = daily candles",
                    "enum": [
                      "1h",
                      "4h",
                      "24h"
                    ],
                    "type": "string"
                  }
                },
                "type": "object"
              },
              "type": {
                "const": "http",
                "type": "string"
              }
            },
            "required": [
              "type",
              "method"
            ],
            "type": "object"
          },
          "output": {
            "properties": {
              "example": {
                "type": "object"
              },
              "type": {
                "type": "string"
              }
            },
            "required": [
              "type"
            ],
            "type": "object"
          }
        },
        "required": [
          "input"
        ],
        "type": "object"
      }
    }
  },
  "resource": {
    "description": "Dogecoin (DOGE) price direction forecast. Kronos-base (60-path Monte-Carlo) ML model, cached ~20 min — switched from composite 2026-07-10. Measured on predictions actually served: 62% directional over 3,300+ scored DOGE forecasts — above our ~54% all-asset headline; verify per-asset at /api/stats (beta_accuracy). Falls back to the composite heuristic if the cache is briefly stale. Pay-per-call via x402 on Base USDC. Live scored track record at /api/stats — not a backtest.",
    "mimeType": "application/json",
    "serviceName": "Kronos Crypto Data & Forecasts",
    "tags": [
      "dogecoin",
      "doge",
      "crypto",
      "price-forecast",
      "machine-learning",
      "ai-agents",
      "x402"
    ],
    "url": "https://kronossignals.com/api/v1/forecast/doge"
  },
  "x402Version": 2
}

Request headers

{
  "accept": "*/*",
  "user-agent": "Fetch402Bot/0.1 (+https://fetch402.com/crawler; contact: crawler@fetch402.com)"
}

Machine contract

Schemas.

InputJSON
{
  "method": "GET",
  "queryParams": {
    "horizon": "1h"
  },
  "type": "http"
}
OutputJSON
{
  "example": {
    "accuracy_note": "Kronos-base model (switched from composite 2026-07-10). Measured on predictions actually served: 62% directional over 3,300+ scored DOGE forecasts — above the ~54% all-asset headline. Prior composite record (36.1%/n147) retained at /api/stats. Verify per-asset at /api/stats (beta_accuracy.per_asset).",
    "asset": "DOGE-USD",
    "beta": false,
    "cache_age_seconds": 180,
    "cached": true,
    "disclaimer": "Kronos-base ML forecast for DOGE-USD, cached; may briefly fall back to the composite heuristic. Informational only, not financial advice.",
    "forecast": {
      "confidence": 0.55,
      "expected_close": null,
      "horizon_bars": 1,
      "pred_volatility": null,
      "quantiles": null,
      "range_high": 0.186,
      "range_low": 0.174,
      "up_prob": 0.55
    },
    "generated_at": "2026-07-03T10:00:00.000Z",
    "horizon": "1h",
    "model": "kronos-base-60path-t1-v2",
    "model_type": "kronos_ml",
    "price": {
      "atr": 0.004,
      "close": 0.18
    },
    "source": "Kronos-base (cached, 60-path MC)"
  },
  "type": "json"
}