polynews.news
x402Grade BLast checked 2 hours ago
GET https://polynews.news/api/v1/arbitrage
Cross-platform arbitrage detection between Polymarket and Kalshi: matched markets, price spreads, fee-adjusted EV. Coverage: liquid Polymarket markets in politics/geopolitics/elections/tech/economy/finance; low-volume long-tail, sports, culture, and weather are not included.
Price$0.01per location lookup · paid in USD on Base
Uptime100%
4/4 probes · 507.5 ms
Score75Grade B
Paid usage, 30 days2payers · 2 calls
How to buy
This endpoint takes pay-per-call payments over x402. Call it once without paying to see its live price; any x402 client then pays and retries automatically.
curl -i -X GET "https://polynews.news/api/v1/arbitrage"
# HTTP/1.1 402 Payment Required: price, asset and payTo are in the responseRecent checks
| Checked (UTC) | Result | Status | Time | Live price |
|---|---|---|---|---|
| 2026-10-11 09:00 | Valid 402 | 402 | 400 ms | $0.01 |
| 2026-10-11 04:30 | Valid 402 | 402 | 526 ms | $0.01 |
| 2026-10-11 00:00 | Valid 402 | 402 | 489 ms | $0.01 |
| 2026-10-10 19:15 | Valid 402 | 402 | 1409 ms | $0.01 |
Receipts
No test purchases yet. Graded test purchases are next on our list; until then every number here comes from unpaid checks.
What a check proves