Roundhouse AI

Kronos Crypto Data & Forecasts

Paid market-intelligence API over x402

TradingLiveeip155:8453Exactvia cdp
https://kronos-x402.vercel.app/api/v1/funding-arb/sol
Funding-arbFunding-rateCross-venueArbitrageDerivatives
Settlements · 30d
1,114↓ 62%
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.
$96.98
Verified settled volume
A floor: summed over 5,000 of 5,759 verified settlements.
$0.0030
Listed price
As published in the catalog. Always read the live 402 before paying.
3
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-07-21 01:16Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x36038e1d712c5e39f35952164ec58ec2b96caee7

The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider

The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.

{
  "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/funding-arb/sol",
    "tags": [
      "funding-arb",
      "funding-rate",
      "cross-venue",
      "arbitrage",
      "derivatives",
      "crypto",
      "multi-venue",
      "ai-agents",
      "x402"
    ],
    "mimeType": "application/json",
    "description": "Cross-venue funding arbitrage signal from real-time 8h-equivalent funding rates on Binance, OKX, Bybit, KuCoin, Bitget and Hyperliquid. Returns the gross and net-of-fees spread between the best short venue and best long venue (gross_spread_bps, net_spread_bps after a 20 bps round-trip fee estimate), spread_8h_normalized, venues_count, per-venue rates with funding_interval_hours, annualized_pct, and an actionability label. All 17 assets. $0.02 USDC via x402.",
    "serviceName": "Kronos Crypto Data & Forecasts"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "pathParams": {},
          "queryParams": {}
        },
        "output": {
          "type": "json",
          "example": {
            "as_of": "2026-01-01T00:00:00.000Z",
            "asset": "BTC-USD",
            "short": "BTC",
            "inputs": {
              "venues_count": 6,
              "venues_queried": 6,
              "best_long_rate8h": -0.0001,
              "best_short_rate8h": 0.0003
            },
            "caveats": [
              "Computed facts, not a profit forecast.",
              "Funding can flip direction at any time.",
              "Execution/slippage/borrow/margin costs not fully modeled.",
              "20 bps fee estimate assumes taker fills on both legs at open and close."
            ],
            "per_venue": {
              "okx": {
                "oi": 40000,
                "rate8h": 0.00025,
                "funding_interval_hours": 8
              },
              "bybit": {
                "oi": 30000,
                "rate8h": 0.00028,
                "funding_interval_hours": 8
              },
              "bitget": {
                "oi": null,
                "rate8h": 0.00024,
                "funding_interval_hours": 8
              },
              "kucoin": {
                "oi": null,
                "rate8h": 0.00022,
                "funding_interval_hours": 8
              },
              "binance": {
                "oi": 85000,
                "rate8h": 0.0003,
                "funding_interval_hours": 8
              },
              "hyperliquid": {
                "oi": 12000,
                "rate8h": -0.0001,
                "funding_interval_hours": 1
              }
            },
            "dispersion": {
              "stdev": 0.000138,
              "max_min_spread": 0.0004,
              "venues_reporting": 6
            },
            "methodology": "gross_spread_bps = (best_short_rate8h - best_long_rate8h) * 10000. net_spread_bps = gross_spread_bps - 20 (ROUND_TRIP_FEE_BPS). annualized_pct = net per-8h fraction * 3 * 365 * 100.",
            "venues_count": 6,
            "actionability": "not_actionable",
            "cache_ttl_sec": null,
            "simple_avg_8h": 0.00023,
            "annualized_pct": -175.2,
            "net_spread_bps": -16,
            "best_long_venue": "hyperliquid",
            "best_long_rate8h": -0.0001,
            "best_short_venue": "binance",
            "gross_spread_bps": 4,
            "best_short_rate8h": 0.0003,
            "oi_weighted_avg_8h": 0.00026,
            "spread_8h_normalized": 0.0004
          },
          "example_kind": "illustrative_schema_only",
          "example_note": "Placeholder values and timestamps, not market data."
        }
      },
      "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"
                ],
                "type": "string"
              },
              "pathParams": {
                "type": "object"
              },
              "queryParams": {
                "type": "object",
                "properties": {}
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object"
              }
            }
          }
        }
      },
      "routeTemplate": ":var1"
    }
  },
  "x402Version": 2
}

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

0.003USDC≈ $0.003 USD
on Base · exact scheme

Pay 0.003 USDC on Base to 0x3603…caee7. The signed payment is good for 5 minutes.

Paid to
0x3603…caee7
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
3000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x36038e1d712c5e39f35952164ec58ec2b96caee7",
    "amount": "3000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {}
      },
      "output": {
        "type": "json",
        "example": {
          "as_of": "2026-07-02T10:00:00.000Z",
          "asset": "BTC-USD",
          "short": "BTC",
          "inputs": {
            "venues_count": 6,
            "venues_queried": 6,
            "best_long_rate8h": -0.0001,
            "best_short_rate8h": 0.0003
          },
          "caveats": [
            "Computed facts, not a profit forecast.",
            "Funding can flip direction at any time.",
            "Execution/slippage/borrow/margin costs not fully modeled.",
            "20 bps fee estimate assumes taker fills on both legs at open and close."
          ],
          "per_venue": {
            "okx": {
              "oi": 40000,
              "rate8h": 0.00025,
              "funding_interval_hours": 8
            },
            "bybit": {
              "oi": 30000,
              "rate8h": 0.00028,
              "funding_interval_hours": 8
            },
            "bitget": {
              "oi": null,
              "rate8h": 0.00024,
              "funding_interval_hours": 8
            },
            "kucoin": {
              "oi": null,
              "rate8h": 0.00022,
              "funding_interval_hours": 8
            },
            "binance": {
              "oi": 85000,
              "rate8h": 0.0003,
              "funding_interval_hours": 8
            },
            "hyperliquid": {
              "oi": 12000,
              "rate8h": -0.0001,
              "funding_interval_hours": 1
            }
          },
          "dispersion": {
            "stdev": 0.000138,
            "max_min_spread": 0.0004,
            "venues_reporting": 6
          },
          "methodology": "gross_spread_bps = (best_short_rate8h - best_long_rate8h) * 10000. net_spread_bps = gross_spread_bps - 20 (ROUND_TRIP_FEE_BPS). annualized_pct = net per-8h fraction * 3 * 365 * 100.",
          "venues_count": 6,
          "actionability": "not_actionable",
          "cache_ttl_sec": null,
          "simple_avg_8h": 0.00023,
          "annualized_pct": -175.2,
          "net_spread_bps": -16,
          "best_long_venue": "hyperliquid",
          "best_long_rate8h": -0.0001,
          "best_short_venue": "binance",
          "gross_spread_bps": 4,
          "best_short_rate8h": 0.0003,
          "oi_weighted_avg_8h": 0.00026,
          "spread_8h_normalized": 0.0004
        }
      }
    },
    "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"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-07-21 01:16Z
Last indexed by Roundhouse
2026-08-10 07:50Z
Last enriched (probe, favicon, geo)
2026-09-14 04:15Z
x402 version
2
Max timeout
300s
Liveness probe
HTTP 402
Report

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/endpoints

No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days. Verified volume counts only settlements with an on-chain EIP-3009 marker.

Open skill.md
Show the prompt
Using Roundhouse, look up the x402 service Kronos Crypto Data & Forecasts and tell me whether it is
worth paying: what a call costs, whether the endpoint answered when last probed, and what
its payment record actually shows.

curl -s 'https://api.roundhouseai.io/v0/endpoints?q=Kronos%20Crypto%20Data%20%26%20Forecasts'
curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>'

Then call it: read the price from the live 402 at https://kronos-x402.vercel.app/api/v1/funding-arb/sol, never from
a cached figure, and pay with an x402 client.

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402,
or use an organization key from https://roundhouseai.io/dashboard/team.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.