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
0x5e06…fb09eu-verifyBaseBase$0.002100%coinbase75d ago0xb69d43…091327
0xa6db…ce04eu-verifyBaseBase$0.005100%coinbase75d ago0xae56bd…4baa91
0x5e06…fb09eu-verifyBaseBase$0.002100%coinbase75d ago0xe16d97…7b583c
0x170d…fa10eu-verifyBaseBase$0.005100%coinbase75d ago0x7e7459…d6bdfb
0xa6db…ce04eu-verifyBaseBase$0.005100%coinbase76d ago0xd1d854…0eee79
0xc533…2d7aeu-verifyBaseBase$0.005100%coinbase77d ago0xcf35c8…aad135
0xc533…2d7aeu-verifyBaseBase$0.001100%coinbase77d ago0x80bed9…673dd2
0xa6db…ce04eu-verifyBaseBase$0.005100%coinbase77d ago0xf87828…85b831
0x5e06…fb09eu-verifyBaseBase$0.001100%coinbase79d ago0x81e116…c02958
0x5e06…fb09eu-verifyBaseBase$0.001100%coinbase79d ago0x9fc624…2eac07
0x5e06…fb09eu-verifyBaseBase$0.001100%coinbase79d ago0x644117…899cba
0x5e06…fb09eu-verifyBaseBase$0.001100%coinbase79d ago0x89155e…97cead
0x5e06…fb09eu-verifyBaseBase$0.001100%coinbase79d ago0x39ad51…95fdb3
0x5e06…fb09eu-verifyBaseBase$0.001100%coinbase79d ago0xd52952…4f55a6
0x5e06…fb09eu-verifyBaseBase$0.01100%coinbase79d ago0x6e5a4a…476445
0x5e06…fb09eu-verifyBaseBase$0.01100%coinbase79d ago0xc70524…4325b6
0x5e06…fb09eu-verifyBaseBase$0.01100%coinbase79d ago0x704938…5236eb
0x5e06…fb09eu-verifyBaseBase$0.01100%coinbase79d ago0xb3e8cb…d0ac5c
0x5e06…fb09eu-verifyBaseBase$0.01100%coinbase79d ago0x7f2477…13d192
0x5e06…fb09eu-verifyBaseBase$0.01100%coinbase79d ago0x71e1a0…a64fd4
0x5e06…fb09eu-verifyBaseBase$0.01100%coinbase79d ago0xbbea26…ae47c7
0x5e06…fb09eu-verifyBaseBase$0.01100%coinbase79d ago0x3da6be…3a6132
0x5e06…fb09eu-verifyBaseBase$0.10100%coinbase79d ago0x7d8215…55ca60
0x5e06…fb09eu-verifyBaseBase$0.10100%coinbase79d ago0x8e34aa…de5613
0x5e06…fb09eu-verifyBaseBase$0.10100%coinbase79d ago0xe2aedf…4f4826

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.