FETCH402
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Resource / 181

healthy

Kronos Crypto Data & Forecasts.

GET https://kronossignals.com/api/v1/stablecoins ↗

Stablecoin market cap, top-10 breakdown by dominance, and 7d/30d supply flows (mint/burn) via DeFiLlama. Shows total stablecoin market cap, per-coin dominance %, and net capital entering/leaving crypto. 15-minute caching. Never fabricated — returns available:false when sources are unreachable. $0.02 USDC via x402.

Eligibility
probeable
Failures
0
Last quote
2026-08-12 22:00:00 UTC
Last probe
2026-08-12 22:00:00 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 22:00:00 UTC GET · HTTP 402 · 75ms · accepts 1 · base 1 ok
Request
GET https://kronossignals.com/api/v1/stablecoins
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": {
            "as_of": "2026-07-02T10:00:00.000Z",
            "as_of_age_seconds": 0,
            "disclaimer": "Informational only; not financial advice. Stablecoin flows (mint/burn) approximate capital entering/leaving crypto.",
            "flows": {
              "flow_30d_pct": 3.23,
              "flow_30d_usd": 5000000000,
              "flow_7d_pct": 0.75,
              "flow_7d_usd": 1200000000
            },
            "interpretation": "net +$1.2bn over 7d = capital inflow to crypto",
            "source": "DeFiLlama stablecoins API (stablecoins.llama.fi)",
            "stale": false,
            "top_stablecoins": [
              {
                "circulating": 110000000000,
                "dominance_pct": 68.75,
                "name": "Tether",
                "symbol": "USDT"
              }
            ],
            "total_stablecoin_mcap": 160000000000
          },
          "type": "json"
        }
      },
      "routeTemplate": ":var1",
      "schema": {
        "$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": "Stablecoin market cap, top-10 breakdown by dominance, and 7d/30d supply flows (mint/burn) via DeFiLlama. Shows total stablecoin market cap, per-coin dominance %, and net capital entering/leaving crypto. 15-minute caching. Never fabricated — returns available:false when sources are unreachable. $0.02 USDC via x402.",
    "mimeType": "application/json",
    "serviceName": "Kronos Crypto Data & Forecasts",
    "tags": [
      "stablecoins",
      "usdt",
      "usdc",
      "defi",
      "market-cap",
      "flows",
      "defillama",
      "crypto",
      "capital-flows",
      "ai-agents",
      "x402"
    ],
    "url": "https://kronossignals.com/api/v1/stablecoins"
  },
  "x402Version": 2
}

Response headers

{
  "age": "0",
  "cache-control": "public, max-age=0, must-revalidate",
  "content-type": "application/json",
  "date": "Wed, 12 Aug 2026 22:00:00 GMT",
  "payment-required": "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",
  "server": "Vercel",
  "strict-transport-security": "max-age=63072000",
  "transfer-encoding": "chunked",
  "x-matched-path": "/api/v1/stablecoins",
  "x-vercel-cache": "MISS",
  "x-vercel-id": "iad1::iad1::phssr-1786572000727-e37c30c75a09"
}

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": {
            "as_of": "2026-07-02T10:00:00.000Z",
            "as_of_age_seconds": 0,
            "disclaimer": "Informational only; not financial advice. Stablecoin flows (mint/burn) approximate capital entering/leaving crypto.",
            "flows": {
              "flow_30d_pct": 3.23,
              "flow_30d_usd": 5000000000,
              "flow_7d_pct": 0.75,
              "flow_7d_usd": 1200000000
            },
            "interpretation": "net +$1.2bn over 7d = capital inflow to crypto",
            "source": "DeFiLlama stablecoins API (stablecoins.llama.fi)",
            "stale": false,
            "top_stablecoins": [
              {
                "circulating": 110000000000,
                "dominance_pct": 68.75,
                "name": "Tether",
                "symbol": "USDT"
              }
            ],
            "total_stablecoin_mcap": 160000000000
          },
          "type": "json"
        }
      },
      "routeTemplate": ":var1",
      "schema": {
        "$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": "Stablecoin market cap, top-10 breakdown by dominance, and 7d/30d supply flows (mint/burn) via DeFiLlama. Shows total stablecoin market cap, per-coin dominance %, and net capital entering/leaving crypto. 15-minute caching. Never fabricated — returns available:false when sources are unreachable. $0.02 USDC via x402.",
    "mimeType": "application/json",
    "serviceName": "Kronos Crypto Data & Forecasts",
    "tags": [
      "stablecoins",
      "usdt",
      "usdc",
      "defi",
      "market-cap",
      "flows",
      "defillama",
      "crypto",
      "capital-flows",
      "ai-agents",
      "x402"
    ],
    "url": "https://kronossignals.com/api/v1/stablecoins"
  },
  "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": {
    "as_of": "2026-07-02T10:00:00.000Z",
    "as_of_age_seconds": 0,
    "disclaimer": "Informational only; not financial advice. Stablecoin flows (mint/burn) approximate capital entering/leaving crypto.",
    "flows": {
      "flow_30d_pct": 3.23,
      "flow_30d_usd": 5000000000,
      "flow_7d_pct": 0.75,
      "flow_7d_usd": 1200000000
    },
    "interpretation": "net +$1.2bn over 7d = capital inflow to crypto",
    "source": "DeFiLlama stablecoins API (stablecoins.llama.fi)",
    "stale": false,
    "top_stablecoins": [
      {
        "circulating": 110000000000,
        "dominance_pct": 68.75,
        "name": "Tether",
        "symbol": "USDT"
      }
    ],
    "total_stablecoin_mcap": 160000000000
  },
  "type": "json"
}