eu-verify

Open markets on Kalshi, the CFTC-regulated US event exchange, most-traded first: ticker, title, live yes bid/ask (USD, 0-1), mid-quote implied probability, 24h volume, open interest and close time, from the public Trade API v2. Query: ?series=KXBTC (optional series_ticker filter, e.g. KXBTC, KXCPIYOY) &limit=1-25 (default 10). JSON, 5min cache. Cross-reference /v1/predict/polymarket for venue spreads.

TradingLiveeip155:8453Exactvia cdp
Prediction-marketsKalshiProbabilitiesEventsMacro
Settlements · 30d
131↑ 11%
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.
$12.05
Verified settled volume
1,567 settlements proven x402 by their on-chain EIP-3009 marker.
$0.010
Listed price
As published in the catalog. Always read the live 402 before paying.
–
Calls · 30d
Upstream's own call count for this endpoint, not ours.
–
Unique payers · 30d
Never called
–
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x6ab8efe305cce67daa48c97bde29c04402822dff

The wallet the 402 directs payment to. Its full payment record 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.

Recent payments · which agents last used it

Every indexed settlement paid to this service’s wallet, newest first. The index does not record which endpoint a payment was for, so if this wallet serves more than one endpoint, the rows include payments for the others. Paged up to the newest 5,000; the full history is on the merchant page.

Payer PayeeChainAmountx402RouteAgeTxn hash
0x38b6…8b9feu-verifyBaseBase$0.001100%coinbase20d ago0xf0ad41…5606ed
0x2465…a1b1eu-verifyBaseBase$0.002100%coinbase20d ago0xc003c0…0d886c
0xb83b…75cceu-verifyBaseBase$0.001100%coinbase20d ago0xea60d9…1ee5a0
0xe827…50a0eu-verifyBaseBase$0.001100%coinbase20d ago0x936c1c…581c92
0x38b6…8b9feu-verifyBaseBase$0.001100%coinbase20d ago0x924321…47fd28
0x2465…a1b1eu-verifyBaseBase$0.001100%coinbase20d ago0x07fcd3…1b6376
0xb83b…75cceu-verifyBaseBase$0.001100%coinbase20d ago0xd30f2c…b71f60
0xe827…50a0eu-verifyBaseBase$0.001100%coinbase20d ago0x2e05d9…6d8530
0x38b6…8b9feu-verifyBaseBase$0.001100%coinbase20d ago0x418423…ed8852
0x2465…a1b1eu-verifyBaseBase$0.001100%coinbase20d ago0xe4720e…382374
0x38b6…8b9feu-verifyBaseBase$0.001100%coinbase21d ago0xadbc21…f4e0ee
0x38b6…8b9feu-verifyBaseBase$0.001100%coinbase21d ago0x433789…03a667
0xb83b…75cceu-verifyBaseBase$0.001100%coinbase21d ago0xc94bc3…eeb70b
0xe827…50a0eu-verifyBaseBase$0.001100%coinbase21d ago0xc36374…3cef74
0x38b6…8b9feu-verifyBaseBase$0.001100%coinbase21d ago0x65917b…4c3a15
0x2465…a1b1eu-verifyBaseBase$0.001100%coinbase21d ago0x527538…a08530
0xc9c7…1670eu-verifyBaseBase$0.002100%coinbase22d ago0x617649…8d121f
0xec2a…d034eu-verifyBaseBase$0.003100%coinbase22d ago0x97e39e…825898
0x72c5…159beu-verifyBaseBase$0.005100%coinbase22d ago0x16cfda…3dfad2
0x7722…5e4aeu-verifyBaseBase$0.001100%coinbase22d ago0x02e9bf…a0b7b0
0x7722…5e4aeu-verifyBaseBase$0.001100%coinbase22d ago0x4550ce…995be2
0x6031…c2d1eu-verifyBaseBase$0.001100%coinbase22d ago0xf7f21b…35709e
0x6031…c2d1eu-verifyBaseBase$0.003100%coinbase22d ago0x35ca2e…9a72f1
0x72c5…159beu-verifyBaseBase$0.01100%coinbase23d ago0x243b18…b52b59
0x72c5…159beu-verifyBaseBase$0.01100%coinbase23d ago0x33b29e…4aa389

Accepts

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

0.01USDC≈ $0.01 USD
on Base · exact scheme

Pay 0.01 USDC on Base to 0x6ab8…22dff. The signed payment is good for 5 minutes.

USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
10000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x6ab8efe305cce67daa48c97bde29c04402822dff",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "limit": 5,
          "series": "KXFED"
        }
      },
      "output": {
        "type": "json",
        "example": {
          "count": 1,
          "series": "KXFED",
          "source": "Kalshi Trade API v2 (CFTC-regulated event exchange, live public quotes, prices in USD 0-1)",
          "markets": [
            {
              "title": "Will the upper bound of the federal funds rate be above 4.00% following the Fed's Mar 17, 2027 meeting?",
              "ticker": "KXFED-27MAR-T4.00",
              "yes_ask": 0.49,
              "yes_bid": 0.03,
              "subtitle": "4.00%",
              "close_time": "2027-03-17T17:55:00Z",
              "last_price": 0.05,
              "volume_24h": 21,
              "implied_prob": 0.26,
              "open_interest": 1305
            }
          ]
        }
      }
    },
    "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": {
                "limit": {
                  "type": "integer",
                  "default": 10,
                  "maximum": 25,
                  "minimum": 1,
                  "description": "Markets to return"
                },
                "series": {
                  "type": "string",
                  "description": "Kalshi series_ticker filter, e.g. KXBTC (optional)"
                }
              }
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-07-15 21:20Z
Last indexed by Roundhouse
2026-07-15 23:40Z
Last enriched (probe, favicon, geo)
2026-09-22 04:45Z
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 eu-verify 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=eu-verify'
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://x402-datashop-production.up.railway.app/v1/predict/kalshi, 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. Either pay over x402 (mint a personal key for $0.01 at
GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at
https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further.

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