polls.karbach.digital

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": 0.01,
  "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": "Next national election in all 27 EU countries and Switzerland: type, date or year, status (official, legal deadline, expected), sources, link to our forecast where available."
}

Accepts

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

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x6d8444CaEd95D9155785Da10aC00247948957D61",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET"
      },
      "output": {
        "type": "json",
        "example": {
          "data": {
            "countries": [
              {
                "date": "2026-10-25",
                "type": "presidential",
                "year": 2026,
                "label": "25.10.26",
                "status": "official",
                "country": "BG",
                "name_de": "Bulgarien",
                "sources": [
                  "Wikipedia: List of next general elections",
                  "Wikipedia: 2026 Bulgarian presidential election"
                ],
                "election_de": "Präsidentschaftswahl",
                "iso_numeric": "100",
                "date_text_de": "25.10.2026",
                "forecast_page": null,
                "checked_by_editor": true
              },
              {
                "date": "2026-11-29",
                "type": "parliamentary",
                "year": 2026,
                "label": "29.11.26",
                "status": "official",
                "country": "ES",
                "name_de": "Spanien",
                "sources": [
                  "Real Decreto 806/2026, BOE-A-2026-20742",
                  "Redaktionell geprüft (polls)"
                ],
                "election_de": "Parlamentswahl (vorgezogen)",
                "iso_numeric": "724",
                "date_text_de": "29.11.2026",
                "forecast_page": "https://polls.karbach.digital/spanien-2026/",
                "checked_by_editor": true
              }
            ],
            "status_meaning": {
              "expected": "expected year only",
              "official": "date fixed by law, decree or election authority",
              "legal_deadline": "latest possible date; an early election remains possible"
            }
          },
          "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. Coalition figures count simulated seat majorities (see ...",
          "source": {
            "indicators": "Eurostat",
            "parliament": "English Wikipedia, infobox of the lower house",
            "processing": "polls.karbach.digital (Max Karbach)",
            "officeholders": "Wikidata",
            "election_dates": "two Wikipedia articles per election (List of next general elections; article of the chamber or the election), official sources where checked (BOE for Spain, ...",
            "indicators_license": "CC BY 4.0",
            "parliament_license": "CC BY-SA 4.0",
            "officeholders_license": "CC0 1.0",
            "election_dates_license": "CC BY-SA 4.0"
          },
          "project": "Ein Projekt von Karbach.Digital (https://karbach.digital)",
          "updated_at": "2026-10-22T00:05:01+02:00",
          "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"
            },
            "queryParams": {
              "type": "object",
              "properties": {}
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog

2026-10-21 22:56Z

Last indexed by Roundhouse

2026-10-26 17:20Z

Last enriched (probe, favicon, geo)

2026-10-21 23:15Z

x402 version

2

Max timeout

300s

Liveness probe

HTTP 402