polynews.news

https://polynews.news/api/v1/arbitrage

Shares a payout wallet with 10 other endpoints — its adoption is attributed from that shared wallet's traffic, not earned exclusively.

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.

65
reliability

Reliability & health

Uptime and response time from our own unpaid probes, plus the reliability score built from them.

7 days 30 days

Uptime

98.6% avg
0% 50% 100% Thu 1 PMSat 9 PMTue 3 AMThu 11 AM

Response time

p50 155ms · p95 877ms
0ms 3350ms 6700ms Thu 1 PMSat 9 PMTue 3 AMThu 11 AM
Data table
Reliability history per time bucket over the last 7 days (hourly).
Bucket Uptime Probes Response time
8/13/2026, 1:00:00 PM 100% 1 126ms
8/13/2026, 3:00:00 PM 100% 1 168ms
8/13/2026, 4:00:00 PM 100% 1 353ms
8/13/2026, 5:00:00 PM 100% 1 27ms
8/13/2026, 6:00:00 PM 100% 1 172ms
8/13/2026, 7:00:00 PM 100% 1 6680ms
8/13/2026, 8:00:00 PM 100% 1 145ms
8/13/2026, 9:00:00 PM 100% 1 104ms
8/13/2026, 10:00:00 PM 100% 1 178ms
8/14/2026, 12:00:00 AM 100% 1 146ms
8/14/2026, 1:00:00 AM 100% 1 209ms
8/14/2026, 2:00:00 AM 100% 1 151ms
8/14/2026, 3:00:00 AM 100% 1 163ms
8/14/2026, 4:00:00 AM 100% 1 153ms
8/14/2026, 5:00:00 AM 100% 1 629ms
8/14/2026, 6:00:00 AM 100% 1 133ms
8/14/2026, 8:00:00 AM 100% 1 108ms
8/14/2026, 9:00:00 AM 100% 1 171ms
8/14/2026, 10:00:00 AM 100% 1 165ms
8/14/2026, 11:00:00 AM 100% 1 427ms
8/14/2026, 12:00:00 PM 0% 1 —
8/14/2026, 2:00:00 PM 100% 1 765ms
8/14/2026, 3:00:00 PM 100% 1 145ms
8/14/2026, 4:00:00 PM 100% 1 3383ms
8/14/2026, 5:00:00 PM 100% 1 293ms
8/14/2026, 6:00:00 PM 100% 1 172ms
8/14/2026, 8:00:00 PM 100% 1 125ms
8/14/2026, 9:00:00 PM 100% 1 147ms
8/14/2026, 10:00:00 PM 100% 1 205ms
8/14/2026, 11:00:00 PM 100% 1 111ms
8/15/2026, 12:00:00 AM 100% 1 84ms
8/15/2026, 1:00:00 AM 100% 1 105ms
8/15/2026, 2:00:00 AM 100% 1 256ms
8/15/2026, 3:00:00 AM 100% 1 121ms
8/15/2026, 5:00:00 AM 100% 1 111ms
8/15/2026, 6:00:00 AM 100% 1 2574ms
8/15/2026, 7:00:00 AM 100% 1 87ms
8/15/2026, 8:00:00 AM 100% 1 137ms
8/15/2026, 9:00:00 AM 100% 1 117ms
8/15/2026, 10:00:00 AM 100% 1 425ms
8/15/2026, 11:00:00 AM 100% 1 136ms
8/15/2026, 12:00:00 PM 100% 1 102ms
8/15/2026, 2:00:00 PM 100% 1 231ms
8/15/2026, 3:00:00 PM 100% 1 124ms
8/15/2026, 4:00:00 PM 100% 1 121ms
8/15/2026, 5:00:00 PM 100% 1 257ms
8/15/2026, 6:00:00 PM 100% 1 239ms
8/15/2026, 7:00:00 PM 100% 1 385ms
8/15/2026, 9:00:00 PM 100% 1 178ms
8/15/2026, 10:00:00 PM 100% 1 287ms
8/15/2026, 11:00:00 PM 100% 1 321ms
8/16/2026, 12:00:00 AM 100% 1 302ms
8/16/2026, 1:00:00 AM 100% 1 120ms
8/16/2026, 2:00:00 AM 100% 1 358ms
8/16/2026, 3:00:00 AM 100% 1 133ms
8/16/2026, 5:00:00 AM 100% 1 134ms
8/16/2026, 6:00:00 AM 100% 1 285ms
8/16/2026, 7:00:00 AM 100% 1 220ms
8/16/2026, 8:00:00 AM 100% 1 514ms
8/16/2026, 9:00:00 AM 100% 1 91ms
8/16/2026, 10:00:00 AM 100% 1 261ms
8/16/2026, 12:00:00 PM 100% 1 105ms
8/16/2026, 1:00:00 PM 100% 1 122ms
8/16/2026, 2:00:00 PM 100% 1 180ms
8/16/2026, 3:00:00 PM 100% 1 109ms
8/16/2026, 4:00:00 PM 100% 1 172ms
8/16/2026, 5:00:00 PM 100% 1 138ms
8/16/2026, 7:00:00 PM 100% 1 155ms
8/16/2026, 8:00:00 PM 100% 1 80ms
8/16/2026, 9:00:00 PM 100% 1 127ms
8/16/2026, 10:00:00 PM 100% 1 106ms
8/16/2026, 11:00:00 PM 100% 1 82ms
8/17/2026, 12:00:00 AM 100% 1 110ms
8/17/2026, 2:00:00 AM 100% 1 300ms
8/17/2026, 3:00:00 AM 100% 1 698ms
8/17/2026, 4:00:00 AM 100% 1 409ms
8/17/2026, 5:00:00 AM 100% 1 393ms
8/17/2026, 6:00:00 AM 100% 1 109ms
8/17/2026, 7:00:00 AM 100% 1 84ms
8/17/2026, 9:00:00 AM 100% 1 111ms
8/17/2026, 10:00:00 AM 100% 1 122ms
8/17/2026, 11:00:00 AM 100% 1 106ms
8/17/2026, 12:00:00 PM 100% 1 125ms
8/17/2026, 1:00:00 PM 100% 1 539ms
8/17/2026, 2:00:00 PM 100% 1 947ms
8/17/2026, 4:00:00 PM 100% 1 685ms
8/17/2026, 5:00:00 PM 100% 1 235ms
8/17/2026, 6:00:00 PM 100% 1 188ms
8/17/2026, 7:00:00 PM 100% 1 142ms
8/17/2026, 8:00:00 PM 100% 1 1285ms
8/17/2026, 9:00:00 PM 100% 1 155ms
8/17/2026, 11:00:00 PM 100% 1 349ms
8/18/2026, 12:00:00 AM 100% 1 420ms
8/18/2026, 1:00:00 AM 100% 1 143ms
8/18/2026, 2:00:00 AM 100% 1 90ms
8/18/2026, 3:00:00 AM 100% 1 109ms
8/18/2026, 4:00:00 AM 100% 1 114ms
8/18/2026, 6:00:00 AM 100% 1 82ms
8/18/2026, 7:00:00 AM 100% 1 136ms
8/18/2026, 8:00:00 AM 100% 1 82ms
8/18/2026, 9:00:00 AM 100% 1 105ms
8/18/2026, 10:00:00 AM 100% 1 248ms
8/18/2026, 11:00:00 AM 100% 1 141ms
8/18/2026, 1:00:00 PM 0% 1 —
8/18/2026, 2:00:00 PM 100% 1 132ms
8/18/2026, 3:00:00 PM 100% 1 110ms
8/18/2026, 4:00:00 PM 100% 1 132ms
8/18/2026, 5:00:00 PM 100% 1 26ms
8/18/2026, 6:00:00 PM 100% 1 311ms
8/18/2026, 8:00:00 PM 100% 1 697ms
8/18/2026, 9:00:00 PM 100% 1 142ms
8/18/2026, 10:00:00 PM 100% 1 112ms
8/18/2026, 11:00:00 PM 100% 1 886ms
8/19/2026, 12:00:00 AM 100% 1 469ms
8/19/2026, 1:00:00 AM 100% 1 430ms
8/19/2026, 3:00:00 AM 100% 1 125ms
8/19/2026, 4:00:00 AM 100% 1 141ms
8/19/2026, 5:00:00 AM 100% 1 823ms
8/19/2026, 6:00:00 AM 100% 1 157ms
8/19/2026, 7:00:00 AM 100% 1 105ms
8/19/2026, 8:00:00 AM 100% 1 161ms
8/19/2026, 10:00:00 AM 100% 1 94ms
8/19/2026, 11:00:00 AM 100% 1 125ms
8/19/2026, 12:00:00 PM 100% 1 140ms
8/19/2026, 1:00:00 PM 100% 1 133ms
8/19/2026, 2:00:00 PM 100% 1 164ms
8/19/2026, 3:00:00 PM 100% 1 185ms
8/19/2026, 4:00:00 PM 100% 1 102ms
8/19/2026, 6:00:00 PM 100% 1 54ms
8/19/2026, 7:00:00 PM 100% 1 753ms
8/19/2026, 8:00:00 PM 100% 1 390ms
8/19/2026, 9:00:00 PM 100% 1 213ms
8/19/2026, 10:00:00 PM 100% 1 920ms
8/19/2026, 11:00:00 PM 100% 1 150ms
8/20/2026, 1:00:00 AM 100% 1 176ms
8/20/2026, 2:00:00 AM 100% 1 254ms
8/20/2026, 3:00:00 AM 100% 1 436ms
8/20/2026, 4:00:00 AM 100% 1 122ms
8/20/2026, 5:00:00 AM 100% 1 162ms
8/20/2026, 6:00:00 AM 100% 1 125ms
8/20/2026, 7:00:00 AM 100% 1 364ms
8/20/2026, 8:00:00 AM 100% 1 307ms
8/20/2026, 10:00:00 AM 100% 1 204ms
8/20/2026, 11:00:00 AM 100% 1 493ms
65
Composite reliability — the weighted average of the dimensions below, on a 0–100 scale.
Availability
99

How often it was reachable when we probed it (weight 35%).

Latency
100

How quickly it answers when it is up — fast scores high (weight 20%).

Security
100

Whether it serves over working TLS / https (weight 15%).

Transparency
61

Whether the operator disclosed what it does — description, schema, identity (weight 15%).

Activity
10

Observed on-chain payments to this endpoint's wallet — transactions, volume, and distinct paying wallets over the last month (weight 15%; not yet measured when we have not seen its wallet settle).

Confidence 100% — how much probe evidence backs this score. A thin history is flagged, not hidden.

See the scoring methodology for exactly how each number is computed.

Payment

Currencies
USDC
Networks
base, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp
Facilitator
unknown
SDK
unknown

Operator

Company
inferred — unknown
Jurisdiction
—
Registrar
Cloudflare, Inc
Domain registered
2026-01-30
Hosting network
—
Hosting country
—

Operator context is derived from public RDAP/TLS records and unverified. Company and country are only available for endpoints that publish them (an OV/EV TLS certificate or a non-redacted domain record); most endpoints are CDN-fronted and disclose neither.

On-chain activity (base)

211
payments (30d)
8.08
USD volume (30d)
9
paying wallets (30d)

Payments per day

last payment 8/18/2026
0 15 30 Jul 26Jul 31Aug 7Aug 18
Data table
Settled payments per day.
Day Payments Volume (USD) Paying wallets
7/26/2026 2 0.01 2
7/27/2026 3 0.01 2
7/28/2026 21 0.85 2
7/29/2026 25 1.01 1
7/30/2026 28 1.16 1
7/31/2026 30 1.22 2
8/1/2026 28 1.16 1
8/2/2026 29 1.21 1
8/3/2026 17 0.69 1
8/4/2026 16 0.68 1
8/5/2026 4 0.04 1
8/7/2026 1 0 1
8/12/2026 1 0.01 1
8/13/2026 1 0.01 1
8/14/2026 2 0.02 1
8/16/2026 1 0 1
8/18/2026 2 0 1

This payout wallet is shared: figures cover all 11 endpoints paid at it, since payments cannot be attributed to one of them. Only payments settled on chains and facilitators we index.

Linked by wallet — likely same operator

On-chain agent identity and the x402 endpoint that shares its settlement wallet.

https://polynews.news/api/v1/arbitrage x402 endpoint
Response schema 
{
  "properties": {
    "data": {
      "properties": {
        "computedAt": {
          "type": "string"
        },
        "kalshiDataAgeSec": {
          "type": "number"
        },
        "matchedMarkets": {
          "type": "number"
        },
        "opportunities": {
          "items": {
            "properties": {
              "arbitrage": {
                "description": "Fee-adjusted arb calc",
                "properties": {
                  "confidence": {
                    "description": "high | medium | low",
                    "type": "string"
                  },
                  "feeEstimate": {
                    "type": "number"
                  },
                  "impliedProfit": {
                    "description": "Fee-adjusted EV",
                    "type": "number"
                  },
                  "spreadNet": {
                    "description": "After fees",
                    "type": "number"
                  },
                  "spreadRaw": {
                    "type": "number"
                  },
                  "type": {
                    "description": "e.g. BUY_YES_POLY_NO_KALSHI",
                    "type": "string"
                  }
                },
                "type": "object"
              },
              "categoryPoly": {
                "type": "string"
              },
              "id": {
                "type": "string"
              },
              "kalshiTitle": {
                "type": "string"
              },
              "kalshiYesAsk": {
                "type": "number"
              },
              "kalshiYesBid": {
                "type": "number"
              },
              "matchConfidence": {
                "type": "number"
              },
              "polymarketNoPrice": {
                "type": "number"
              },
              "polymarketQuestion": {
                "type": "string"
              },
              "polymarketYesPrice": {
                "type": "number"
              }
            },
            "type": "object"
          },
          "type": "array"
        },
        "polymarketDataAgeSec": {
          "type": "number"
        },
        "totalKalshiMarkets": {
          "type": "number"
        },
        "totalPolymarkets": {
          "type": "number"
        }
      },
      "type": "object"
    },
    "meta": {
      "$ref": "#/components/schemas/Meta"
    }
  },
  "type": "object"
}