Roundhouse

polls.karbach.digital

Federal election statistics: postal-vote, ticket-splitting, age-groups or turnout. Use for German voting statistics: postal vote, ticket splitting, age groups, turnout. Source-attributed, German data, updated every six hours.

DataLiveeip155:8453Exactvia cdp
https://api.polls.karbach.digital/v1/results/federal/:kind
ElectionsGermanyPollsPoliticsBundestag
Calls · 30d
1
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 12 snapshots so far.
$2.19
Verified settled volume
105 settlements proven x402 by their on-chain EIP-3009 marker.
$0.020
Listed price
As published in the catalog. Always read the live 402 before paying.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-10-18 14:02Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x6d8444CaEd95D9155785Da10aC00247948957D61

The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — 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.

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.

{
  "docs": "https://api.polls.karbach.digital/v1/",
  "x402": "https://x402.org",
  "asset": "USDC",
  "error": "payment_required",
  "network": "Base",
  "project": "Ein Projekt von Karbach.Digital (https://karbach.digital)",
  "price_usd": 0.02,
  "free_trial": "Try before you pay: put /try in front of any paid path (for example https://api.polls.karbach.digital/try/v1/federal/trend). Same answer, no payment, 3 calls per day per IP address.",
  "how_to_pay": "This endpoint is paid per call via x402. Read the PAYMENT-REQUIRED header, pay with an x402 client (for example the x402 Python or TypeScript SDK) and repeat the request.",
  "description": "Federal election statistics: postal-vote, ticket-splitting, age-groups or turnout."
}

Accepts

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

0.02USDC≈ $0.02 USD
on Base · exact scheme

Pay 0.02 USDC on Base to 0x6d84…57D61. The signed payment is good for 5 minutes.

Paid to
0x6d84…57D61
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
20000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x6d8444CaEd95D9155785Da10aC00247948957D61",
    "amount": "20000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "pathParams": {
          "kind": "turnout"
        }
      },
      "output": {
        "type": "json",
        "example": {
          "data": {
            "elections": [
              {
                "name": "Landtagswahl Baden-Württemberg",
                "wahl": "bw-2026",
                "datum": "2026-03-08",
                "vorwahl": "Landtagswahl 2021",
                "ergebnis": {
                  "AfD": 18.8,
                  "CDU": 29.7,
                  "FDP": 4.4,
                  "SPD": 5.5,
                  "Linke": 4.4,
                  "Grüne": 30.2
                },
                "prognose": {
                  "AfD": 20.7,
                  "CDU": 26.6,
                  "FDP": 4.7,
                  "SPD": 6.3,
                  "Linke": 5.3,
                  "Grüne": 29.7
                },
                "umfragen": null,
                "konfidenz": null,
                "beteiligung": 69.6,
                "fehler_je_partei": {
                  "AfD": 1.9,
                  "CDU": -3.1,
                  "FDP": 0.3,
                  "SPD": 0.8,
                  "Linke": 0.9,
                  "Grüne": -0.5
                },
                "beteiligung_delta": 5.8,
                "beteiligung_vorwahl": 63.8,
                "mae_grosse_parteien": 1.25,
                "mittlere_streuung_pp": null
              },
              {
                "name": "Landtagswahl Rheinland-Pfalz",
                "wahl": "rlp-2026",
                "datum": "2026-03-22",
                "vorwahl": "Landtagswahl 2021",
                "ergebnis": {
                  "FW": 4.2,
                  "AfD": 20,
                  "CDU": 30.6,
                  "SPD": 25.7,
                  "Linke": 4.4,
                  "Grüne": 7.9
                },
                "prognose": {
                  "FW": 4.8,
                  "AfD": 19.2,
                  "CDU": 28.5,
                  "SPD": 27,
                  "Linke": 5,
                  "Grüne": 8.8
                },
                "umfragen": null,
                "konfidenz": null,
                "beteiligung": 64,
                "fehler_je_partei": {
                  "FW": 0.6,
                  "AfD": -0.8,
                  "CDU": -2.1,
                  "SPD": 1.3,
                  "Linke": 0.6,
                  "Grüne": 0.9
                },
                "beteiligung_delta": -0.4,
                "beteiligung_vorwahl": 64.4,
                "mae_grosse_parteien": 1.05,
                "mittlere_streuung_pp": null
              }
            ]
          },
          "docs": "https://api.polls.karbach.digital/v1/",
          "model": null,
          "notice": "Scenario analysis based on published opinion polls. Not a prediction and not a voting recommendation. Coalitions are arithmetic majorities only, not statemen...",
          "source": {
            "polls": "dawum.de",
            "processing": "polls.karbach.digital (Max Karbach)",
            "polls_license": "ODbL 1.0",
            "official_results": "Die Bundeswahlleiterin, Wiesbaden",
            "polls_license_url": "https://opendatacommons.org/licenses/odbl/1-0/",
            "official_results_license": "Datenlizenz Deutschland Namensnennung 2.0"
          },
          "project": "Ein Projekt von Karbach.Digital (https://karbach.digital)",
          "updated_at": "2026-09-21T03:10:01",
          "uncertainty": null
        }
      }
    },
    "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"
            },
            "pathParams": {
              "type": "object",
              "required": [
                "kind"
              ],
              "properties": {
                "kind": {
                  "enum": [
                    "postal-vote",
                    "ticket-splitting",
                    "age-groups",
                    "turnout"
                  ],
                  "type": "string"
                }
              }
            },
            "queryParams": {
              "type": "object",
              "properties": {}
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    },
    "routeTemplate": "/v1/results/federal/:kind"
  }
}

Provenance

Seen in the source catalog
2026-10-18 14:02Z
Last indexed by Roundhouse
2026-10-26 22:40Z
Last enriched (probe, favicon, geo)
2026-10-18 15:15Z
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

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 12 snapshots so far. 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 polls.karbach.digital 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=polls.karbach.digital'
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://api.polls.karbach.digital/v1/results/federal/:kind, 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.