●

Kronos Quant Signal API

Finance PAYMENT-READY

payment-ready until 2026-09-14

Kronos publishes cached multi-timeframe forecasts across crypto and commodities. 22 paid x402 endpoints on Solana + Base mainnet.

Pay from $0.001 to $0.04 per request in USDC on Base / Solana, settled onchain via the x402 protocol, no signup, no API key needed.

listed 2026-09-07 · no on-chain settlement recorded yet

BASE URL https://kronos.seshat.markets │ WEBSITE https://kronos.seshat.markets │ ENDPOINTS 6 │ NETWORK Base / Solana │ ASSET USDC │ MEMBER SINCE 2026-09-07 │ MONITORED SINCE 2026-09-07

VERDICT

ranking generation 3

solid 89/100 #35 of 82 in Finance by measured score

What the score read on this service: status online, 100% uptime 24h (no 30d window yet), 508ms response p95, x402 compliance 14 of 14, $0.001 price against the category, on-chain traction measured. Each of those is measured, and each is published in full below.

The score comes from our own monitoring, never from reviews, operator claims, or a language model: reliability, x402 compliance, price against the category, a deterministic risk flag, and a small on-chain traction term, weighted by ranking generation 3. It is not placement anyone can buy: the paid verify tier is reported beside it and is not one of its inputs. Every component below stays published and read-only.

It is a score inside Finance, and only there: price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, which here means 82 listings, this one among them. That set is wider than the 82 the position above is counted against, because a listing we have measured too little of to rank still sits in the field the price and the speed are normalized over. The same service in a different field would read differently. The same engine answers GET /api/v1/best, and asked for a different pool (the whole directory, or another filter) it returns a different number for this service under this same ranking generation. Neither is more correct: they answer different questions, and the methodology states which is which.

Bands on the 0 to 100 measured score: strong at 93 and above, solid from 75, mixed from 55, weak below 55. Price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, so the score places a service in its own field.

ALTERNATIVES IN FINANCE

Other Finance services in this directory, ordered by the same measured score. The figures are ours: 30-day uptime from our own probes, 30-day settlement volume read on-chain (a conservative undercount, and null where we cannot measure it, never a zero).

Ranked alternative x402 services in the same category, with band, measured score, 30-day uptime and 30-day on-chain settlement volume
SERVICE	BAND	SCORE	UPTIME 30D	VOL 30D
Bitrefill	strong	99	100%	---
toon.haus Financial Data API	strong	99	100%	---
TickersFeed	strong	98	100%	---
Stock Trends Market Intelligence	strong	97	99.9%	---
SENTINEL Compliance Intelligence	strong	97	100%	---

5 of 81 other ranked services in Finance · see the whole category

ASSESSMENT

updated 4h ago

The parts the verdict above is computed from, each with its proof. Click any chip. Measured values stay read-only; unknown is honest, and an unknown is never counted as a zero.

reliability 100%

uptime 24h: -
uptime 7d: -
uptime 30d: -
uptime 90d: -
response p95: 508ms
avg response: 508ms
total checks: 1

Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.

compliance A (14/14)

14 of 14 x402 conformance checks pass. Full checklist below.

jump to compliance checklist

price $0.001 to $0.04 (p9 in Finance)

price (min): $0.001
price (max): $0.04
category percentile (min): p9 in Finance
category percentile (max): p49 in Finance
endpoints / prices: 6 / 5
model: tiered
stability: 100%

risk clean

No deterministic risk flag. Risk fires only on an exact blocklist match, or a reserved-brand name with a mismatched verified payTo. Never from low uptime, a high price, or a model guess.

domain age: -
registrar: -
hosting: custom
domain created: ---

Identity facts, not a risk score.

traction $0.00 30d · 0 buyers

volume 30d: $0.00
buyers 30d: 0
settlements 30d: 0
measured since: --- (start of our harvest window)
last settlement: ---
top buyer share: -
trend 7d vs 30d: -
networks: eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpKuc147dw2N9d
volume all-time: $0
settlements all-time: 0
median settlement 30d: -
max settlement 30d: -
settled via: -

Conservative undercount: only USDC settlements via facilitators we measure are counted. A measured floor, not an estimate.

Top buyer share is a concentration signal, not part of the ranking score.

WHAT IT DOES

ai-derived

No AI synthesis has been produced for this service yet.

ENDPOINTS

Service endpoints with HTTP method, path, description, pricing, and network
METHOD	PATH	PRICE	NETWORK	ASSET	402 CHANNEL
GET	/api/feeds/kronos/accuracy	$0.001	Base/Solana	USDC	header
GET	/api/feeds/kronos/benchmark	$0.02	Base/Solana	USDC	header
GET	/api/feeds/kronos/composite/btc_usdt	$0.01	Base/Solana	USDC	header
GET	/api/feeds/kronos/digest/btc_usdt	$0.03	Base/Solana	USDC	header
GET	/api/feeds/kronos/predict/btc_usdt	$0.04	Base/Solana	USDC	header
GET	/api/feeds/kronos/regime	$0.02	Base/Solana	USDC	header

6 endpoints

REQUEST / RESPONSE EXAMPLE

An unpaid request to GET /api/feeds/kronos/accuracy returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.

// request

curl -i 'https://kronos.seshat.markets/api/feeds/kronos/accuracy'

// 402 response (captured by monitor) · 6 payloads · click to expand

[
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww",
          "paymentFlow": "upfront"
        },
        "payTo": "FwZqFPkaE5xiCq5QmTmAkQJpwFzX44DxrGhf6JphRoPr",
        "amount": "40000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "maxTimeoutSeconds": 60
      },
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2",
          "paymentFlow": "upfront"
        },
        "payTo": "0xBedaC66CeB25dbE53Bb36cAEBc863DA0Ec4c965A",
        "amount": "40000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 60
      }
    ],
    "resource": {
      "url": "http://kronos.seshat.markets/api/feeds/kronos/predict/btc_usdt",
      "mimeType": "application/json",
      "description": "Fresh on-demand forecast for any supported asset (BTC, ETH, SOL, etc). All timeframes by default, or filter with ?timeframes=5m,1h. $0.01 per timeframe, capped at $0.04 (20% off when requesting all 5). Horizon: 5m→6h, 15m→24h, 1h→2d, 4h→10d, 1d→14d."
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "pathParams": {}
          }
        },
        "bazaar": {
          "info": {
            "input": {
              "type": "http",
              "method": "GET",
              "pathParams": [
                "symbolKey"
              ],
              "queryParams": {
                "refresh": {
                  "type": "string"
                },
                "timeframes": {
                  "type": "string"
                }
              }
            }
          },
          "schema": {
            "type": "object",
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "required": [
              "input"
            ],
            "properties": {
              "input": {
                "type": "object",
                "required": [
                  "type",
                  "method"
                ],
                "properties": {
                  "type": {
                    "type": "string",
                    "const": "http"
                  },
                  "method": {
                    "enum": [
                      "GET",
                      "HEAD",
                      "DELETE"
                    ],
                    "type": "string"
                  },
                  "queryParams": {
                    "type": "object",
                    "properties": {}
                  }
                },
                "additionalProperties": false
              }
            }
          }
        },
        "schema": {
          "properties": {
            "input": {
              "required": [
                "method"
              ],
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "pathParams": {
                  "type": "object"
                }
              }
            }
          }
        },
        "routeTemplate": ":var1"
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
        },
        "payTo": "FwZqFPkaE5xiCq5QmTmAkQJpwFzX44DxrGhf6JphRoPr",
        "amount": "1000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "maxTimeoutSeconds": 60
      },
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xBedaC66CeB25dbE53Bb36cAEBc863DA0Ec4c965A",
        "amount": "1000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 60
      }
    ],
    "resource": {
      "url": "http://kronos.seshat.markets/api/feeds/kronos/accuracy",
      "mimeType": "application/json",
      "description": "Model accuracy — measures the Kronos forecast model (predicted direction vs actual price at horizon). Total predictions, correct calls, hit rate, avg Brier score, calibration status, forecast coverage, baselines (edge vs no-change/momentum) and risk_state. Filter by ?symbol and ?limit."
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "pathParams": {}
          }
        },
        "bazaar": {
          "info": {
            "input": {
              "type": "http",
              "method": "GET",
              "queryParams": {
                "limit": {
                  "type": "integer"
                },
                "symbol": {
                  "type": "string"
                }
              }
            }
          },
          "schema": {
            "type": "object",
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "required": [
              "input"
            ],
            "properties": {
              "input": {
                "type": "object",
                "required": [
                  "type",
                  "method"
                ],
                "properties": {
                  "type": {
                    "type": "string",
                    "const": "http"
                  },
                  "method": {
                    "enum": [
                      "GET",
                      "HEAD",
                      "DELETE"
                    ],
                    "type": "string"
                  },
                  "queryParams": {
                    "type": "object",
                    "properties": {}
                  }
                },
                "additionalProperties": false
              }
            }
          }
        },
        "schema": {
          "properties": {
            "input": {
              "required": [
                "method"
              ],
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "pathParams": {
                  "type": "object"
                }
              }
            }
          }
        },
        "routeTemplate": ":var1"
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
        },
        "payTo": "FwZqFPkaE5xiCq5QmTmAkQJpwFzX44DxrGhf6JphRoPr",
        "amount": "20000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "maxTimeoutSeconds": 60
      },
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xBedaC66CeB25dbE53Bb36cAEBc863DA0Ec4c965A",
        "amount": "20000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 60
      }
    ],
    "resource": {
      "url": "http://kronos.seshat.markets/api/feeds/kronos/regime",
      "mimeType": "application/json",
      "description": "Cross-symbol alignment signal — market regime detection."
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "pathParams": {}
          }
        },
        "bazaar": {
          "info": {
            "input": {
              "type": "http",
              "method": "GET",
              "queryParams": {
                "days": {
                  "type": "integer"
                },
                "minSymbols": {
                  "type": "integer"
                }
              }
            }
          },
          "schema": {
            "type": "object",
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "required": [
              "input"
            ],
            "properties": {
              "input": {
                "type": "object",
                "required": [
                  "type",
                  "method"
                ],
                "properties": {
                  "type": {
                    "type": "string",
                    "const": "http"
                  },
                  "method": {
                    "enum": [
                      "GET",
                      "HEAD",
                      "DELETE"
                    ],
                    "type": "string"
                  },
                  "queryParams": {
                    "type": "object",
                    "properties": {}
                  }
                },
                "additionalProperties": false
              }
            }
          }
        },
        "schema": {
          "properties": {
            "input": {
              "required": [
                "method"
              ],
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "pathParams": {
                  "type": "object"
                }
              }
            }
          }
        },
        "routeTemplate": ":var1"
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
        },
        "payTo": "FwZqFPkaE5xiCq5QmTmAkQJpwFzX44DxrGhf6JphRoPr",
        "amount": "30000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "maxTimeoutSeconds": 60
      },
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xBedaC66CeB25dbE53Bb36cAEBc863DA0Ec4c965A",
        "amount": "30000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 60
      }
    ],
    "resource": {
      "url": "http://kronos.seshat.markets/api/feeds/kronos/digest/btc_usdt",
      "mimeType": "application/json",
      "description": "AI-powered cross-referenced digest — combines 7 data sources into insight-driven analysis."
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "pathParams": {}
          }
        },
        "bazaar": {
          "info": {
            "input": {
              "type": "http",
              "method": "GET",
              "pathParams": [
                "symbolKey"
              ],
              "queryParams": {}
            }
          },
          "schema": {
            "type": "object",
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "required": [
              "input"
            ],
            "properties": {
              "input": {
                "type": "object",
                "required": [
                  "type",
                  "method"
                ],
                "properties": {
                  "type": {
                    "type": "string",
                    "const": "http"
                  },
                  "method": {
                    "enum": [
                      "GET",
                      "HEAD",
                      "DELETE"
                    ],
                    "type": "string"
                  },
                  "queryParams": {
                    "type": "object",
                    "properties": {}
                  }
                },
                "additionalProperties": false
              }
            }
          }
        },
        "schema": {
          "properties": {
            "input": {
              "required": [
                "method"
              ],
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "pathParams": {
                  "type": "object"
                }
              }
            }
          }
        },
        "routeTemplate": ":var1"
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
        },
        "payTo": "FwZqFPkaE5xiCq5QmTmAkQJpwFzX44DxrGhf6JphRoPr",
        "amount": "10000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "maxTimeoutSeconds": 60
      },
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xBedaC66CeB25dbE53Bb36cAEBc863DA0Ec4c965A",
        "amount": "10000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 60
      }
    ],
    "resource": {
      "url": "http://kronos.seshat.markets/api/feeds/kronos/composite/btc_usdt",
      "mimeType": "application/json",
      "description": "Quant (Kronos) vs Crowd divergence analysis."
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "pathParams": {}
          }
        },
        "bazaar": {
          "info": {
            "input": {
              "type": "http",
              "method": "GET",
              "pathParams": [
                "symbolKey"
              ],
              "queryParams": {
                "days": {
                  "type": "integer"
                }
              }
            }
          },
          "schema": {
            "type": "object",
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "required": [
              "input"
            ],
            "properties": {
              "input": {
                "type": "object",
                "required": [
                  "type",
                  "method"
                ],
                "properties": {
                  "type": {
                    "type": "string",
                    "const": "http"
                  },
                  "method": {
                    "enum": [
                      "GET",
                      "HEAD",
                      "DELETE"
                    ],
                    "type": "string"
                  },
                  "queryParams": {
                    "type": "object",
                    "properties": {}
                  }
                },
                "additionalProperties": false
              }
            }
          }
        },
        "schema": {
          "properties": {
            "input": {
              "required": [
                "method"
              ],
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "pathParams": {
                  "type": "object"
                }
              }
            }
          }
        },
        "routeTemplate": ":var1"
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
        },
        "payTo": "FwZqFPkaE5xiCq5QmTmAkQJpwFzX44DxrGhf6JphRoPr",
        "amount": "20000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "maxTimeoutSeconds": 60
      },
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xBedaC66CeB25dbE53Bb36cAEBc863DA0Ec4c965A",
        "amount": "20000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 60
      }
    ],
    "resource": {
      "url": "http://kronos.seshat.markets/api/feeds/kronos/benchmark",
      "mimeType": "application/json",
      "description": "Kronos vs every forecasting agent — leaderboard with accuracy and Brier score."
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "pathParams": {}
          }
        },
        "bazaar": {
          "info": {
            "input": {
              "type": "http",
              "method": "GET",
              "queryParams": {
                "days": {
                  "type": "integer"
                },
                "detail": {
                  "type": "string"
                },
                "minResolved": {
                  "type": "integer"
                }
              }
            }
          },
          "schema": {
            "type": "object",
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "required": [
              "input"
            ],
            "properties": {
              "input": {
                "type": "object",
                "required": [
                  "type",
                  "method"
                ],
                "properties": {
                  "type": {
                    "type": "string",
                    "const": "http"
                  },
                  "method": {
                    "enum": [
                      "GET",
                      "HEAD",
                      "DELETE"
                    ],
                    "type": "string"
                  },
                  "queryParams": {
                    "type": "object",
                    "properties": {}
                  }
                },
                "additionalProperties": false
              }
            }
          }
        },
        "schema": {
          "properties": {
            "input": {
              "required": [
                "method"
              ],
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "pathParams": {
                  "type": "object"
                }
              }
            }
          }
        },
        "routeTemplate": ":var1"
      }
    },
    "x402Version": 2
  }
]

OVER TIME

All charts use the 7d selector; each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/kronos-quant-signal-api/price, /scores, /volume and /buyers. On-chain volume and distinct buyers are measured over the service's settlement address and are a conservative undercount (only settlements that reach a measured facilitator are counted). The on-chain series roll up hourly, so the latest day can be up to about an hour behind; distinct buyers are counted per payout address, so a service that settles to more than one address is an upper bound.

UPTIME

7d UPTIME 100%

RESPONSE TIME

AVG RESP 248ms

PRICE (captured 402, USD)

Median across 6 endpoints. Use the selector to isolate one.

SUB-SCORES (uptime + x402 compliance)

checklist grew 11->14 on 2026-07-28; a step here is a metric change, not a regression

VOLUME (on-chain settlement, USD)

DISTINCT BUYERS

COMPLIANCE

14/14 checks pass · grade A

last 402 captured 2026-09-07 · last up 2026-09-07

402 payload captured
accepts[] array present
payTo address recoverable
payTo at accepts[0].payTo (conformant shape)
payTo is a valid on-chain address
atomic price declared
atomic price in a sane range
asset (token) address declared
network resolves to CAIP-2
payment scheme declared
served over HTTPS
declares the current x402 version (2)
EIP-712 domain parameters present on every EVM entry
x402 v2 envelope delivered in the payment-required header

SITE PILLARS

homepage reachable
openapi doc
pricing page
llms.txt
robots.txt
terms page

recent checks (15) live · click to expand

TIME STATUS RESP CAUSE

12:24:10 UTC ● OK 367ms

12:07:14 UTC ● SLOW 383ms

11:51:02 UTC ● OK 202ms

11:35:04 UTC ● OK 297ms

11:18:02 UTC ● OK 160ms

11:02:01 UTC ● OK 211ms

10:46:01 UTC ● OK 184ms

10:30:01 UTC ● OK 147ms

10:14:01 UTC ● OK 158ms

09:58:01 UTC ● OK 267ms

09:42:01 UTC ● OK 218ms

09:26:03 UTC ● OK 344ms

09:10:00 UTC ● OK 116ms

08:54:01 UTC ● OK 163ms

08:38:03 UTC ● SLOW 508ms

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status

Kronos Quant Signal API uptime on x402-list — live uptime

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  <img src="https://x402-list.com/badge/kronos-quant-signal-api.svg" alt="Kronos Quant Signal API listed on x402-list" height="28">
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// Markdown

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// HTML · live uptime variant

<a href="https://x402-list.com/services/kronos-quant-signal-api?utm_source=badge&utm_medium=referral&utm_campaign=embed">
  <img src="https://x402-list.com/badge/kronos-quant-signal-api.svg?data=uptime" alt="Kronos Quant Signal API uptime on x402-list" height="28">
</a>

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