●

Kronos Crypto Data & Forecasts

Data PAYMENT-READY

payment-ready until 2026-09-21

Pay-per-call real-time crypto market-data API for autonomous agents and trading bots. Covers 16 assets with derivatives intelligence (funding rates, open interest, basis), liquidation cluster maps, options implied volatility, multi-source spot pricing, macro context, and ML price forecasts. No API keys required — x402 USDC micropayments on Base mainnet. Prices range $0.001-$0.10 per call.

Pay from $0.02 to $0.10 per request in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.

measured since 2026-07-01 (start of our harvest window) · $110.18 all-time · settled via coinbase

BASE URL https://kronossignals.com │ WEBSITE https://kronossignals.com │ ENDPOINTS 4 │ NETWORK Base │ ASSET USDC │ MEMBER SINCE 2026-07-12 │ MONITORED SINCE 2026-07-12

VERDICT

ranking generation 3

solid 89/100 #15 of 283 in Data by measured score

What the score read on this service: status online, 100% uptime 30d, 532ms response p95, x402 compliance 14 of 14, $0.02 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 Data, 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 283 listings, this one among them. That set is wider than the 283 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 DATA

Other Data 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
StableEnrich	strong	96	100%	$2.0k
glim.sh	strong	95	100%	$52.19
SniperX•x402	strong	95	100%	$527.03
cn402	strong	93	100%	$39.13
API Acre	solid	92	99.8%	$34.05

5 of 282 other ranked services in Data · see the whole category

ASSESSMENT

updated 2h 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: 100%
uptime 7d: 100%
uptime 30d: 100%
uptime 90d: 100%
response p95: 532ms
avg response: 358ms
total checks: 2,694

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 $0.02 to $0.10 (p74 in Data)

price (min): $0.02
price (max): $0.10
category percentile (min): p74 in Data
category percentile (max): p73 in Data
endpoints / prices: 4 / 4
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 $68.63 30d · 74 buyers

volume 30d: $68.63
buyers 30d: 74
settlements 30d: 2,877
measured since: 2026-07-01 (start of our harvest window)
last settlement: 2026-09-13
top buyer share: 43% of 30d volume
trend 7d vs 30d: 0.35x the 30d daily rate
networks: eip155:8453
volume all-time: $110.18
settlements all-time: 5,625
median settlement 30d: $0.02
max settlement 30d: $0.10
settled via: coinbase ($68.63, 2,877 tx)

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/v1/briefing	$0.10	Base	USDC	header
GET	/api/v1/forecast/btc	$0.05	Base	USDC	header
GET	/api/v1/gex/btc	$0.04	Base	USDC	header
GET	/api/v1/signals/btc	$0.02	Base	USDC	header

4 endpoints

REQUEST / RESPONSE EXAMPLE

An unpaid request to GET /api/v1/briefing returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.

// request

curl -i 'https://kronossignals.com/api/v1/briefing'

// 402 response (captured by monitor) · 4 payloads · click to expand

[
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x36038e1d712c5e39f35952164ec58ec2b96caee7",
        "amount": "20000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://kronossignals.com/api/v1/signals/btc",
      "tags": [
        "crypto",
        "derivatives",
        "perpetuals",
        "funding-rate",
        "open-interest",
        "signals",
        "multi-asset",
        "ai-agents",
        "x402"
      ],
      "mimeType": "application/json",
      "description": "Real-time crypto derivatives signals for BTC/ETH/SOL/BNB/XRP/DOGE/ADA/AVAX/LINK/DOT/LTC/TRX/BCH/ATOM/NEAR/APT-USD: perpetual futures funding rate (raw + annualized), next_funding_time, funding_interval_hours, open interest and 1h change, basis (perp vs index), funding-rate trend. Live data from Bybit/OKX via Kronos market_signals. Pay-per-call via x402.",
      "serviceName": "Kronos Crypto Data & Forecasts"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {}
          },
          "output": {
            "type": "json",
            "example": {
              "read": "Elevated positive funding (10.9% ann., trend rising); OI growing. Heuristic only.",
              "as_of": "2026-07-02T10:00:00.000Z",
              "asset": "BTC-USD",
              "basis": 0.000186,
              "inputs": {
                "samples": 12,
                "mark_price": 107500,
                "volume_24h": 12000000,
                "data_source": "bybit",
                "index_price": 107480,
                "funding_rate": 0.0001,
                "open_interest": 85000,
                "next_funding_time": "2026-07-02T16:00:00.000Z"
              },
              "samples": 12,
              "available": true,
              "disclaimer": "Heuristic signal. Not financial advice. Data lags up to 5 minutes.",
              "mark_price": 107500,
              "volume_24h": 12000000,
              "data_source": "bybit",
              "index_price": 107480,
              "funding_rate": 0.0001,
              "oi_change_1h": {
                "abs": 320,
                "pct": 0.3765
              },
              "cache_ttl_sec": null,
              "funding_trend": "rising",
              "open_interest": 85000,
              "next_funding_time": "2026-07-02T16:00:00.000Z",
              "funding_interval_hours": 8,
              "funding_rate_annualized": 0.1095
            }
          }
        },
        "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
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x36038e1d712c5e39f35952164ec58ec2b96caee7",
        "amount": "100000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://kronossignals.com/api/v1/briefing",
      "tags": [
        "briefing",
        "composite",
        "forecast",
        "macro",
        "fear-greed",
        "funding-extremes",
        "multi-asset",
        "vix",
        "dxy",
        "spx",
        "btc",
        "eth",
        "sol",
        "ai-agents",
        "x402"
      ],
      "mimeType": "application/json",
      "description": "Composite market briefing: BTC/ETH/SOL ML forecasts (1h horizon), Crypto Fear & Greed Index, TradFi macro context (VIX/DXY/US 10Y yield/S&P 500/gold), and top funding-rate extremes (|z|≥2 screened across 16 perpetual markets) — all in one round-trip. Saves 4+ separate paid calls. Per-section available flags for graceful degradation. $0.10 USDC via x402.",
      "serviceName": "Kronos Crypto Data & Forecasts"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {}
          },
          "output": {
            "type": "json",
            "example": {
              "macro": {
                "dxy": {
                  "value": 104.2,
                  "source": "stooq.com",
                  "unavailable": false
                },
                "spx": {
                  "value": 5488,
                  "source": "stooq.com",
                  "unavailable": false
                },
                "vix": {
                  "value": 16.8,
                  "source": "stooq.com",
                  "unavailable": false
                },
                "gold": {
                  "value": 2325,
                  "source": "stooq.com",
                  "unavailable": false
                },
                "available": true,
                "us_10y_yield": {
                  "value": 4.31,
                  "source": "stooq.com",
                  "unavailable": false
                }
              },
              "forecasts": {
                "BTC": {
                  "horizon": "1h",
                  "available": true,
                  "direction": "up",
                  "range_low": 106300,
                  "range_high": 108700,
                  "probability": 0.67,
                  "expected_close": 107620
                },
                "ETH": {
                  "horizon": "1h",
                  "available": true,
                  "direction": "up",
                  "range_low": 3450,
                  "range_high": 3590,
                  "probability": 0.58,
                  "expected_close": 3520
                },
                "SOL": {
                  "horizon": "1h",
                  "available": true,
                  "direction": "down",
                  "range_low": 145,
                  "range_high": 152,
                  "probability": 0.44,
                  "expected_close": 148
                }
              },
              "sentiment": {
                "available": true,
                "fear_greed": {
                  "value": 75,
                  "timestamp": "1751443200",
                  "value_classification": "Greed"
                }
              },
              "disclaimer": "Composite briefing assembled from: Kronos-base ML model (forecasts), alternative.me (Fear & Greed), stooq.com / Yahoo Finance (macro), and Kronos market_signals / Bybit (funding extremes). Informational only, not financial advice.",
              "usage_hint": "One-call composite briefing: BTC/ETH/SOL ML forecasts, Fear & Greed, macro (VIX/DXY/SPX/gold), top funding extremes.",
              "generated_at": "2026-07-03T10:00:00.000Z",
              "funding_extremes": {
                "items": [
                  {
                    "rank": 1,
                    "asset": "BTC-USD",
                    "short": "BTC",
                    "stale": false,
                    "z_score": 2.8,
                    "captured_at": "2026-07-03T09:55:00.000Z",
                    "funding_rate": 0.003,
                    "classification": "extreme",
                    "data_age_seconds": 300,
                    "funding_rate_annualized": 3.285
                  }
                ],
                "available": true,
                "extremes_count": 1,
                "no_extremes_message": null
              }
            }
          }
        },
        "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
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x36038e1d712c5e39f35952164ec58ec2b96caee7",
        "amount": "40000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://kronossignals.com/api/v1/gex/btc",
      "tags": [
        "gex",
        "gamma-exposure",
        "max-pain",
        "options",
        "dealer-positioning",
        "expiry",
        "derivatives",
        "crypto",
        "btc",
        "eth",
        "deribit",
        "greeks",
        "gamma-flip",
        "pin-risk",
        "expected-move",
        "ai-agents",
        "x402"
      ],
      "mimeType": "application/json",
      "description": "Gamma Exposure (GEX) and max-pain options tool for BTC and ETH from the Deribit public API. Returns an aggregate GEX strike ladder (dealer-convention net gamma per strike), gamma flip level (zero-cumulative-GEX strike), spot regime above or below flip, max-pain strikes for upcoming weekly and monthly expiries, an expected-move cone (ATM-IV-derived 1-sigma, front expiry), and a heuristic pin-risk score. 15-minute in-memory cache. $0.04 USDC via x402.",
      "serviceName": "Kronos Crypto Data & Forecasts"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {}
          },
          "output": {
            "type": "json",
            "example": {
              "as_of": "2026-07-02T10:00:00.000Z",
              "asset": "BTC-USD",
              "max_pain": [
                {
                  "dte": 2.1,
                  "label": "weekly",
                  "expiry": "4JUL26",
                  "max_pain_strike": 60000
                }
              ],
              "pin_risk": [
                {
                  "note": "Heuristic [0-1]. NOT a forecast.",
                  "expiry": "4JUL26",
                  "pin_risk_score": 0.51,
                  "max_pain_strike": 60000
                }
              ],
              "available": true,
              "gex_total": 50000000,
              "gex_units": "USD per 1% spot move per strike",
              "gex_ladder": [
                {
                  "netGex": 12500000,
                  "putGex": -5500000,
                  "strike": 60000,
                  "callGex": 18000000
                }
              ],
              "data_source": "deribit",
              "spot_regime": "above_flip",
              "expected_move": {
                "dte": 2.1,
                "spot": 61200,
                "lower": 60300,
                "upper": 62100,
                "atm_iv": 42.5,
                "expiry": "4JUL26"
              },
              "gamma_flip_level": 58500,
              "underlying_price": 61200
            }
          }
        },
        "schema": {
          "type": "object",
          "$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
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x36038e1d712c5e39f35952164ec58ec2b96caee7",
        "amount": "50000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://kronossignals.com/api/v1/forecast/btc",
      "tags": [
        "bitcoin",
        "btc",
        "crypto",
        "price-forecast",
        "price-prediction",
        "machine-learning",
        "trading",
        "ai-agents",
        "x402"
      ],
      "mimeType": "application/json",
      "description": "Real-time and ML-forecasted Bitcoin (BTC) price. Kronos deep-learning model: up-probability, expected close, price range, p10-p90 quantiles, forward volatility across 1h/4h/24h horizons. Crypto price prediction / price forecast API for AI agents and trading bots. Pay-per-call via x402 on Base USDC.",
      "serviceName": "Kronos Crypto Data & Forecasts"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {
              "horizon": "1h"
            }
          },
          "output": {
            "type": "json",
            "example": {
              "asset": "BTC-USD",
              "model": "kronos-base-60path-t1-v2",
              "price": {
                "atr": 800,
                "close": 107500
              },
              "cached": true,
              "source": "Kronos-base (cached, 60-path MC)",
              "horizon": "1h",
              "forecast": {
                "n_paths": 60,
                "prob_up": 0.67,
                "up_prob": 0.67,
                "pred_low": 106100,
                "pred_high": 108500,
                "quantiles": {
                  "p10": 106300,
                  "p25": 107000,
                  "p50": 107620,
                  "p75": 108200,
                  "p90": 108700
                },
                "range_low": 106300,
                "confidence": 0.67,
                "range_high": 108700,
                "horizon_bars": 1,
                "expected_close": 107620.5,
                "pred_volatility": 0.0079
              },
              "disclaimer": "Kronos-base ML forecast (60-path Monte-Carlo), cached; regenerated every ~20 min. Informational only, not financial advice.",
              "generated_at": "2026-07-01T10:00:00.000Z",
              "cache_age_seconds": 180
            }
          }
        },
        "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": {
                    "horizon": {
                      "enum": [
                        "1h",
                        "4h",
                        "24h"
                      ],
                      "type": "string",
                      "default": "1h",
                      "description": "Forecast horizon: 1h = 1-hour candles, 4h = 4-hour candles, 24h = daily candles"
                    }
                  }
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  }
]

OVER TIME

All charts use the 30d selector; each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/kronos-crypto-data-forecasts/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

30d UPTIME 100%

RESPONSE TIME

AVG RESP 359ms

PRICE (captured 402, USD)

Median across 4 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

PILLARS OVER TIME (measured)

price percentile in Data

site signals present (of 6)

Measured site and economics pillars from the assessment history, so the latest value shown elsewhere on this page reads as a point on a trend rather than a permanent state.

VOLUME (on-chain settlement, USD)

DISTINCT BUYERS

COMPLIANCE

14/14 checks pass · grade A

last 402 captured 2026-07-13 · last up 2026-09-14

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 (18) live · click to expand

TIME STATUS RESP CAUSE

05:03:25 UTC ● SLOW 552ms

04:47:28 UTC ● SLOW 1290ms

04:31:25 UTC ● OK 391ms

04:15:28 UTC ● SLOW 880ms

03:59:27 UTC ● SLOW 1228ms

03:43:25 UTC ● SLOW 860ms

03:27:30 UTC ● OK 90ms

03:11:32 UTC ● OK 264ms

02:55:31 UTC ● OK 253ms

02:39:30 UTC ● OK 292ms

02:23:31 UTC ● OK 116ms

02:07:31 UTC ● OK 328ms

01:51:30 UTC ● OK 241ms

01:35:25 UTC ● OK 224ms

01:19:32 UTC ● OK 233ms

01:03:28 UTC ● OK 94ms

00:47:33 UTC ● OK 208ms

00:31:29 UTC ● OK 251ms

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