Funding Arb Sol

{
  "actionability": "not_actionable",
  "annualized_pct": -175.2,
  "as_of": "2026-01-01T00:00:00.000Z",
  "asset": "BTC-USD",
  "best_long_rate8h": -0.0001,
  "best_long_venue": "hyperliquid",
  "best_short_rate8h": 0.0003,
  "best_short_venue": "binance",
  "cache_ttl_sec": null,
  "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."
  ],
  "dispersion": {
    "max_min_spread": 0.0004,
    "stdev": 0.000138,
    "venues_reporting": 6
  },
  "gross_spread_bps": 4,
  "inputs": {
    "best_long_rate8h": -0.0001,
    "best_short_rate8h": 0.0003,
    "venues_count": 6,
    "venues_queried": 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.",
  "net_spread_bps": -16,
  "oi_weighted_avg_8h": 0.00026,
  "per_venue": {
    "binance": {
      "funding_interval_hours": 8,
      "oi": 85000,
      "rate8h": 0.0003
    },
    "bitget": {
      "funding_interval_hours": 8,
      "oi": null,
      "rate8h": 0.00024
    },
    "bybit": {
      "funding_interval_hours": 8,
      "oi": 30000,
      "rate8h": 0.00028
    },
    "hyperliquid": {
      "funding_interval_hours": 1,
      "oi": 12000,
      "rate8h": -0.0001
    },
    "kucoin": {
      "funding_interval_hours": 8,
      "oi": null,
      "rate8h": 0.00022
    },
    "okx": {
      "funding_interval_hours": 8,
      "oi": 40000,
      "rate8h": 0.00025
    }
  },
  "short": "BTC",
  "simple_avg_8h": 0.00023,
  "spread_8h_normalized": 0.0004,
  "venues_count": 6
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://kronossignals.com/api/v1/funding-arb/sol'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - 'https://kronossignals.com/api/v1/funding-arb/sol' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode

// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.02 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.02" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.02 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fkronossignals.com%2Fapi%2Fv1%2Ffunding-arb%2Fsol
const res = await pay("https://kronossignals.com/api/v1/funding-arb/sol");
console.log(res.status, await res.text());

# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.02 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.02"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://kronossignals.com/api/v1/funding-arb/sol")
    print(res.status_code, res.text)