polls.karbach.digital
Max Karbach aus dem Saarland: barrierefreie Websites, Kontor für Kontakte und Gremien, Social Media und Medienspiegel, Portale nach Maß für Gemeinden und Verbände.
MediaLiveeip155:8453Exactvia cdp
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.
$0.100
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 14:17Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x6d8444CaEd95D9155785Da10aC00247948957D61The 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": 0.1,
"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": "Everything on one Bundestag constituency in one call: structure data, postcodes, results since 2013, 2029 forecast, direct-mandate chances, its members (committees, speeches, votes), state government and next state election."
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
0.1USDC≈ $0.1 USD
on Base · exact scheme
Pay 0.1 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
- 100000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x6d8444CaEd95D9155785Da10aC00247948957D61",
"amount": "100000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"pathParams": {
"nr": "299"
}
},
"output": {
"type": "json",
"example": {
"data": {
"state": {
"government": {
"head": "Anke Rehlinger",
"party": "SPD",
"coalition": "SPD"
},
"next_state_election": {
"date": "2027-04-18",
"name": "Landtagswahl Saarland",
"detail": "https://api.polls.karbach.digital/v1/elections/sl-2027",
"parties": [
{},
{}
],
"election": "sl-2027",
"date_status": "official",
"data_quality": "grob"
}
},
"results": {
"btw2025": {
"erst": {},
"zweit": {
"AfD": 23.7,
"BSW": 5.8,
"FDP": 4.2,
"SPD": 22,
"Linke": 6.7,
"Grüne": 6.6,
"CDU/CSU": 26.1
}
},
"history": {
"btw2013": {
"erst_pct": {},
"waehlende": 142644,
"zweit_pct": {},
"wahlberechtigt": 198117,
"gewaehlt_partei": null,
"wahlbeteiligung_pct": 72
},
"btw2017": {
"erst_pct": {},
"waehlende": 145992,
"zweit_pct": {},
"wahlberechtigt": 192410,
"gewaehlt_partei": null,
"wahlbeteiligung_pct": 75.88
},
"btw2021": {
"erst_pct": {},
"waehlende": 142288,
"zweit_pct": {},
"wahlberechtigt": 185941,
"gewaehlt_partei": null,
"wahlbeteiligung_pct": 76.52
},
"btw2025": {
"erst_pct": {},
"waehlende": 147979,
"zweit_pct": {},
"wahlberechtigt": 180479,
"gewaehlt_partei": "Sozialdemokratische Partei Deutschlands",
"wahlbeteiligung_pct": 81.99
}
}
},
"structure": {
"land": "Saarland",
"wk_nr": 299,
"wk_name": "Homburg",
"alo_quote": 6.6,
"bip_je_ew": 39444,
"abitur_pct": 32.7,
"bev_dichte": 444.8,
"flaeche_km2": 550.2,
"pkw_je_1000": 661.6,
"alter_u18_pct": 15.7,
"auslaender_pct": 13.9,
"alter_60_74_pct": 22.2,
"einkommen_je_ew": 23126,
"alo_quote_frauen": 5.9
},
"constituency": {
"name": "Homburg",
"state": "SL",
"number": 299,
"postcodes": [
"66280",
"66287"
],
"similar_constituencies": [
{
"name": "St. Wendel",
"wk_nr": 298,
"bundesland": "SL",
"similarity": 0.982
},
{
"name": "Saarlouis",
"wk_nr": 297,
"bundesland": "SL",
"similarity": 0.978
}
]
},
"forecast_2029": {
"swing_type": "regional",
"second_vote": {
"AfD": {
"pct": 32.1,
"ci_low": 27.3,
"ci_high": 36.9
},
"BSW": {
"pct": 4.1,
"ci_low": 2.6,
"ci_high": 5.6
},
"FDP": {
"pct": 4,
"ci_low": 2.5,
"ci_high": 5.5
},
"SPD": {
"pct": 18.3,
"ci_low": 15.2,
"ci_high": 21.4
},
"Linke": {
"pct": 8.6,
"ci_low": 6.6,
"ci_high": 10.6
},
"Grüne": {
"pct": 9,
"ci_low": 7,
"ci_high": 11
},
"CDU/CSU": {
"pct": 16.9,
"ci_low": 13.9,
"ci_high": 19.9
}
},
"direct_mandate": {
"rating": "sicher",
"favourite": "AfD",
"win_probability": {
"AfD": 0.6933,
"FDP": 0,
"SPD": 0.1901,
"Linke": 0.0002,
"CDU/CSU": 0.1164
},
"expected_margin_points": 6.78
}
},
"model_reliability": {
"out_of_sample_2026": {
"mae": 2.17,
"slots": 21,
"sieger": 3,
"wahlen": 3,
"im_band": 17
},
"backtest_34_elections": {
"mae": 1.27,
"brier": 0.0711,
"ci95_hit": 96.9,
"n_wahlen": 34,
"updated_at": "2026-10-18 04:30:24",
"methodology": "v4.16 — punkt=weighted-poll-avg-fenster5 (CLR-sim nur fuer verteilung/CI/sitze/koalitionen; ablation A6/A7 2026-06-10) + per-partei-sigma + party-correlation...",
"winner_total": 34,
"winner_correct": 31,
"baseline_poll_avg_5_mae": {
"n": 34,
"mean_mae": 1.3
}
}
},
"members_of_bundestag": [
{
"id": 138463,
"name": "Esra Limbacher",
"slug": "esra-limbacher",
"party": "SPD",
"detail": "https://api.polls.karbach.digital/v1/members/esra-limbacher",
"mandate": "constituency",
"committees": [
{},
{}
],
"latest_speech": {
"datum": "2026-09-08",
"exzerpt": "Sehr geehrter Herr Präsident! Liebe Kolleginnen und Kollegen! Dieser Sommer hat uns allen gezeigt, was Klimawandel ganz konkret bedeutet: extreme Hitze, Dürr...",
"pdf_url": "https://dserver.bundestag.de/btp/21/21091.pdf",
"protokoll_nr": "21/91"
},
"roll_call_votes": 22,
"against_party_line": 0,
"printed_papers_12m": 0,
"speeches_this_period": 25
},
{
"id": 183266,
"name": "Michael „Moses“ Arndt",
"slug": "michael-moses-arndt",
"party": "Die Linke",
"detail": "https://api.polls.karbach.digital/v1/members/michael-moses-arndt",
"mandate": "list",
"committees": [
{},
{}
],
"latest_speech": {
"datum": "2026-10-08",
"exzerpt": "Frau Präsidentin! Kolleginnen und Kollegen! Sehr geehrte Gäste! Heute geht es um eine Petition bezüglich der Gesundheitsversorgung. Es soll die Möglichkeit e...",
"pdf_url": "https://dserver.bundestag.de/btp/21/21099.pdf",
"protokoll_nr": "21/99"
},
"roll_call_votes": 22,
"against_party_line": 0,
"printed_papers_12m": 0,
"speeches_this_period": 2
}
]
},
"docs": "https://api.polls.karbach.digital/v1/",
"model": {
"version": "4.16"
},
"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",
"polls_license_url": "https://opendatacommons.org/licenses/odbl/1-0/"
},
"project": "Ein Projekt von Karbach.Digital (https://karbach.digital)",
"updated_at": "2026-10-18T15:28:17.464793",
"uncertainty": "Forecasts carry 95 percent bands (ci_low/ci_high, ci95); direct-mandate chances come from simulation. Structure data and past results are official (Bundeswah..."
}
}
},
"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": [
"nr"
],
"properties": {
"nr": {
"type": "string",
"pattern": "^[1-9][0-9]{0,2}$",
"description": "Bundestag constituency number 1 to 299"
}
}
},
"queryParams": {
"type": "object",
"properties": {}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
},
"routeTemplate": "/v1/constituencies/:nr/dossier"
}
}Provenance
- Seen in the source catalog
- 2026-10-18 14:17Z
- Last indexed by Roundhouse
- 2026-10-26 14:50Z
- Last enriched (probe, favicon, geo)
- 2026-10-18 15:15Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 402
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.
Show the promptHide 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/constituencies/:nr/dossier, 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.