FETCH402
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Resource / 241

healthy

Kronos Crypto Data & Forecasts.

GET https://kronossignals.com/api/v1/alerts/btc ↗

Real-time Bitcoin (BTC) market-regime alerts: volatility squeeze, breakout, funding-rate extreme, open-interest surge — derived from live derivatives data. Event feed for crypto trading agents. Pay-per-call via x402 on Base USDC.

Eligibility
probeable
Failures
0
Last quote
2026-08-12 22:00:02 UTC
Last probe
2026-08-12 22:00:02 UTC
Payment requirements / accepts[] 1 options
State Network Scheme Atomic amount Asset payTo / untrusted
active eip155:8453 exact 20000 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 22:00:02 UTC GET · HTTP 402 · 43ms · accepts 1 · base 1 ok
Request
GET https://kronossignals.com/api/v1/alerts/btc
Robots
error
Note
robots_error:{:robots_http_status, 404};http_402;accepts=1;base=1
Accepts fingerprint
31fe82a45a74fa7394aba976f58e8e6a26938a19d4574e4d65f5b2186c13bcec

Accepts snapshot

[
  {
    "amount": "20000",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "assetTransferMethod": null,
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "maxTimeoutSeconds": 300,
    "network": "eip155:8453",
    "payTo": "0x36038e1d712c5e39f35952164ec58ec2b96caee7",
    "paymentFlow": null,
    "raw": {
      "amount": "20000",
      "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": "20000",
      "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": {},
          "type": "http"
        },
        "output": {
          "example": {
            "active_alerts": [
              {
                "details": {
                  "annualized_pct": 42.1,
                  "funding_rate_8h": 9.6e-4,
                  "sign": "longs_paying"
                },
                "detected_at": "2026-06-30T11:45:00.000Z",
                "event_type": "funding_extreme",
                "severity": "high"
              }
            ],
            "as_of": "2026-06-30T12:00:05.000Z",
            "asset": "BTC-USD",
            "available": true,
            "current_state": {
              "as_of": "2026-06-30T12:00:00.000Z",
              "funding_annualized": 0.1095,
              "funding_rate": 0.0001,
              "open_interest": 85000,
              "read": "BTC: elevated positive funding (10.9% ann.) — longs paying shorts, crowded-long / squeeze risk; 1 active regime alert(s) in the last 2h (funding_extreme). Heuristic only."
            },
            "disclaimer": "Heuristic market-state alerts. Not financial advice. Data lags up to 5 minutes."
          },
          "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": {},
                "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": "Real-time Bitcoin (BTC) market-regime alerts: volatility squeeze, breakout, funding-rate extreme, open-interest surge — derived from live derivatives data. Event feed for crypto trading agents. Pay-per-call via x402 on Base USDC.",
    "mimeType": "application/json",
    "serviceName": "Kronos Crypto Data & Forecasts",
    "tags": [
      "bitcoin",
      "btc",
      "crypto",
      "alerts",
      "regime",
      "funding-rate",
      "open-interest",
      "derivatives",
      "perpetuals",
      "trading",
      "ai-agents",
      "x402"
    ],
    "url": "https://kronossignals.com/api/v1/alerts/btc"
  },
  "x402Version": 2
}

Response headers

{
  "age": "0",
  "cache-control": "public, max-age=0, must-revalidate",
  "content-type": "application/json",
  "date": "Wed, 12 Aug 2026 22:00:02 GMT",
  "payment-required": "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",
  "server": "Vercel",
  "strict-transport-security": "max-age=63072000",
  "transfer-encoding": "chunked",
  "x-matched-path": "/api/v1/alerts/btc",
  "x-vercel-cache": "MISS",
  "x-vercel-id": "iad1::iad1::dslpb-1786572001986-554bbac678d2"
}

Response body 

{
  "accepts": [
    {
      "amount": "20000",
      "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": {},
          "type": "http"
        },
        "output": {
          "example": {
            "active_alerts": [
              {
                "details": {
                  "annualized_pct": 42.1,
                  "funding_rate_8h": 9.6e-4,
                  "sign": "longs_paying"
                },
                "detected_at": "2026-06-30T11:45:00.000Z",
                "event_type": "funding_extreme",
                "severity": "high"
              }
            ],
            "as_of": "2026-06-30T12:00:05.000Z",
            "asset": "BTC-USD",
            "available": true,
            "current_state": {
              "as_of": "2026-06-30T12:00:00.000Z",
              "funding_annualized": 0.1095,
              "funding_rate": 0.0001,
              "open_interest": 85000,
              "read": "BTC: elevated positive funding (10.9% ann.) — longs paying shorts, crowded-long / squeeze risk; 1 active regime alert(s) in the last 2h (funding_extreme). Heuristic only."
            },
            "disclaimer": "Heuristic market-state alerts. Not financial advice. Data lags up to 5 minutes."
          },
          "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": {},
                "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": "Real-time Bitcoin (BTC) market-regime alerts: volatility squeeze, breakout, funding-rate extreme, open-interest surge — derived from live derivatives data. Event feed for crypto trading agents. Pay-per-call via x402 on Base USDC.",
    "mimeType": "application/json",
    "serviceName": "Kronos Crypto Data & Forecasts",
    "tags": [
      "bitcoin",
      "btc",
      "crypto",
      "alerts",
      "regime",
      "funding-rate",
      "open-interest",
      "derivatives",
      "perpetuals",
      "trading",
      "ai-agents",
      "x402"
    ],
    "url": "https://kronossignals.com/api/v1/alerts/btc"
  },
  "x402Version": 2
}

Request headers

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

Machine contract

Schemas.

InputJSON
{
  "method": "GET",
  "pathParams": {},
  "queryParams": {},
  "type": "http"
}
OutputJSON
{
  "example": {
    "active_alerts": [
      {
        "details": {
          "annualized_pct": 42.1,
          "funding_rate_8h": 9.6e-4,
          "sign": "longs_paying"
        },
        "detected_at": "2026-06-30T11:45:00.000Z",
        "event_type": "funding_extreme",
        "severity": "high"
      }
    ],
    "as_of": "2026-06-30T12:00:05.000Z",
    "asset": "BTC-USD",
    "available": true,
    "current_state": {
      "as_of": "2026-06-30T12:00:00.000Z",
      "funding_annualized": 0.1095,
      "funding_rate": 0.0001,
      "open_interest": 85000,
      "read": "BTC: elevated positive funding (10.9% ann.) — longs paying shorts, crowded-long / squeeze risk; 1 active regime alert(s) in the last 2h (funding_extreme). Heuristic only."
    },
    "disclaimer": "Heuristic market-state alerts. Not financial advice. Data lags up to 5 minutes."
  },
  "type": "json"
}