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
0xc9c7…1670eu-verifyBaseBase$0.001100%coinbase36d ago0x1e403d…d4b94d
0xc9c7…1670eu-verifyBaseBase$0.002100%coinbase36d ago0x518bc0…f3f18d
0xc9c7…1670eu-verifyBaseBase$0.005100%coinbase37d ago0x58901d…32af09
0xec2a…d034eu-verifyBaseBase$0.005100%coinbase37d ago0x476e55…7d5591
0xa1d1…1978eu-verifyBaseBase$0.002100%coinbase37d ago0x248576…1139e6
0xc9c7…1670eu-verifyBaseBase$0.005100%coinbase37d ago0xd940e2…14616d
0xc9c7…1670eu-verifyBaseBase$0.005100%coinbase37d ago0xa61240…988cbc
0xc9c7…1670eu-verifyBaseBase$0.001100%coinbase37d ago0xb0bea8…3ac6e1
0xc9c7…1670eu-verifyBaseBase$0.005100%coinbase37d ago0x910782…2100ba
0xc9c7…1670eu-verifyBaseBase$0.003100%coinbase37d ago0xe8341d…b9c4c2
0x0ffa…daafeu-verifyBaseBase$0.001100%coinbase37d ago0x3c6234…a6c6c4
0x72c5…159beu-verifyBaseBase$0.001100%coinbase37d ago0x8859db…c0e861
0x72c5…159beu-verifyBaseBase$0.001100%coinbase37d ago0xc82608…9a23c7
0x72c5…159beu-verifyBaseBase$0.001100%coinbase37d ago0xdbb3d2…e34eaf
0x72c5…159beu-verifyBaseBase$0.001100%coinbase37d ago0x24cb43…3fae18
0x72c5…159beu-verifyBaseBase$0.001100%coinbase37d ago0x646641…97acd2
0xc9c7…1670eu-verifyBaseBase$0.002100%coinbase37d ago0x886515…b16eab
0xc9c7…1670eu-verifyBaseBase$0.002100%coinbase37d ago0x62cb31…8a1ce5
0x6031…c2d1eu-verifyBaseBase$0.002100%coinbase38d ago0xfe4533…e281be
0x6031…c2d1eu-verifyBaseBase$0.001100%coinbase38d ago0xccb291…b10816
0x6031…c2d1eu-verifyBaseBase$0.002100%coinbase38d ago0x37e772…e1c208
0x6031…c2d1eu-verifyBaseBase$0.001100%coinbase38d ago0x79ac25…10cd8b
0x6031…c2d1eu-verifyBaseBase$0.002100%coinbase38d ago0xb36aff…3a606b
0x6031…c2d1eu-verifyBaseBase$0.001100%coinbase38d ago0x6b5c5f…b9bb69
0x6031…c2d1eu-verifyBaseBase$0.002100%coinbase38d ago0xead08f…6cb0fe

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.