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.

63
reliability

Reliability & health

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

7 days 30 days

Uptime

100.0% avg
0% 50% 100% Sep 6Sep 16Sep 25Oct 5

Response time

p50 161ms · p95 886ms
0ms 250ms 500ms Sep 6Sep 16Sep 25Oct 5
Data table
Reliability history per time bucket over the last 30 days (daily).
Bucket Uptime Probes Response time
9/6/2026, 12:00:00 AM 100% 17 29ms
9/7/2026, 12:00:00 AM 100% 15 28ms
9/8/2026, 12:00:00 AM 100% 21 28ms
9/9/2026, 12:00:00 AM 100% 20 28ms
9/10/2026, 12:00:00 AM 100% 14 28ms
9/11/2026, 12:00:00 AM 100% 10 34ms
9/12/2026, 12:00:00 AM 100% 9 28ms
9/13/2026, 12:00:00 AM 100% 16 28ms
9/14/2026, 12:00:00 AM 100% 16 108ms
9/15/2026, 12:00:00 AM 100% 15 270ms
9/16/2026, 12:00:00 AM 100% 16 125ms
9/17/2026, 12:00:00 AM 100% 15 125ms
9/18/2026, 12:00:00 AM 100% 13 119ms
9/19/2026, 12:00:00 AM 100% 13 128ms
9/20/2026, 12:00:00 AM 100% 12 130ms
9/21/2026, 12:00:00 AM 100% 12 174ms
9/22/2026, 12:00:00 AM 100% 12 122ms
9/23/2026, 12:00:00 AM 100% 13 118ms
9/24/2026, 12:00:00 AM 100% 14 125ms
9/25/2026, 12:00:00 AM 100% 13 252ms
9/26/2026, 12:00:00 AM 100% 14 232ms
9/27/2026, 12:00:00 AM 100% 13 119ms
9/28/2026, 12:00:00 AM 100% 13 131ms
9/29/2026, 12:00:00 AM 100% 12 128ms
9/30/2026, 12:00:00 AM 100% 12 406ms
10/1/2026, 12:00:00 AM 100% 12 138ms
10/2/2026, 12:00:00 AM 100% 12 188ms
10/3/2026, 12:00:00 AM 100% 12 272ms
10/4/2026, 12:00:00 AM 100% 10 166ms
10/5/2026, 12:00:00 AM 100% 8 428ms
63
Composite reliability — the weighted average of the dimensions below, on a 0–100 scale.
Availability
100

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
5

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
DIGITALOCEAN-138-197-0-0
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)

14
payments (30d)
0.06
USD volume (30d)
9
paying wallets (30d)

Payments per day

last payment 10/5/2026
0 3 5 Sep 6Sep 16Sep 24Oct 5
Data table
Settled payments per day.
Day Payments Volume (USD) Paying wallets
9/6/2026 1 0 1
9/8/2026 2 0.01 2
9/12/2026 2 0 2
9/14/2026 1 0 1
9/16/2026 1 0.01 1
9/17/2026 1 0 1
9/23/2026 1 0.01 1
9/24/2026 1 0 1
9/25/2026 1 0 1
9/26/2026 1 0 1
9/29/2026 1 0.01 1
10/5/2026 1 0.01 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.

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"
}