# polls.karbach.digital – Latest German Opinion Polls

> polls.karbach.digital – Latest German Opinion Polls is a paid API for AI agents from api.polls.karbach.digital, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-28).

Returns the most recent published opinion polls for up to 18 German elections, including party vote shares, institute metadata, sample sizes, and fieldwork dates.

## Facts

- Endpoint: GET https://api.polls.karbach.digital/v1/polls/latest?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-28
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/polls-karbach-digital-latest-german-opinion-polls-ddae6e6d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_MjDIHedDWe0SquSnJbr0A

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability polls-karbach-digital-latest-german-opinion-polls-ddae6e6d
```

Example prompt: What are the latest German Bundestag opinion polls — show me the most recent 5 surveys with party vote shares and which institute conducted them?

## When to prefer this

Choose this endpoint when you need the latest raw poll figures for German federal or state elections, including party-level vote shares, institute details, and fieldwork metadata — especially when you want a batch of the most recent surveys rather than a single election's aggregated scenario model. Prefer over sibling endpoints when the user needs current polling numbers rather than simulation results, constituency breakdowns, or historical official results.

## Known failure modes

- No recent polls available if data source (dawum.de) has not published new polls recently
- Limit parameter out of range (must be 1–50) returns validation error
- Service may return stale data if the 6-hour refresh cycle is currently running
- Paid endpoint — missing or invalid x402 payment header results in 402 Payment Required
- Network timeout if upstream data source is unavailable

## How this service works

Latest federal polls (Sonntagsfrage), party names normalised. Use when asked about the newest federal polls by institute. Source-attributed. Refused (503, not charged) if data is older than 13 hours.

## Output

A JSON object with an array of recent poll records, each containing the poll ID, polling institute, publication date, parliament name, sample size, fieldwork start/end dates, commissioner, polling method, and a results object mapping party names (AfD, SPD, CDU/CSU, Grüne, FDP, BSW, Linke, Sonstige) to their vote share percentages. Also includes data source attribution (dawum.de, ODbL 1.0), an uncertainty notice (sampling error ~2–3 points per party), a last-updated timestamp, and a documentation URL.

## Request schema (JSON Schema)

```json
{
 "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": 20,
       "maximum": 50,
       "minimum": 1
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": [
   {
    "id": "4352",
    "method": "Telefon & Online",
    "results": {
     "AfD": 29,
     "BSW": 4,
     "FDP": 4,
     "SPD": 13,
     "Linke": 11,
     "Grüne": 14,
     "Sonstige": 7,
     "Union (CDU/CSU)": 18
    },
    "institute": "INSA",
    "published": "2026-10-17",
    "parliament": "Bundestag",
    "sample_size": 1206,
    "fieldwork_end": "2026-10-16",
    "commissioned_by": "BILD am Sonntag",
    "fieldwork_start": "2026-10-12"
   },
   {
    "id": "4349",
    "method": "Online",
    "results": {
     "AfD": 30,
     "BSW": 3.5,
     "FDP": 4.5,
     "SPD": 13.5,
     "Linke": 10,
     "Grüne": 14,
     "Sonstige": 6,
     "Union (CDU/CSU)": 18.5
    },
    "institute": "INSA",
    "published": "2026-10-13",
    "parliament": "Bundestag",
    "sample_size": 2006,
    "fieldwork_end": "2026-10-12",
    "commissioned_by": "BILD",
    "fieldwork_start": "2026-10-09"
   }
  ],
  "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",
   "polls_license_url": "https://opendatacommons.org/licenses/odbl/1-0/"
  },
  "project": "Ein Projekt von Karbach.Digital (https://karbach.digital)",
  "updated_at": "2026-10-18T12:15:01.438959",
  "uncertainty": "Single polls carry a sampling error of roughly 2 to 3 points per party."
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/polls-karbach-digital-latest-german-opinion-polls-ddae6e6d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.polls.karbach.digital](https://www.zero.xyz/host/api.polls.karbach.digital/llms.txt)