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polls.karbach.digital – Bundestag Constituency by Postcode
x402
polls.karbach.digital – Bundestag Constituency by Postcode 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 Bundestag (federal parliamentary) constituency that a given 5-digit German postcode belongs to, with source attribution, updated every six hours.
Price / call$0.01
Success—
StatusUnknown
How this service works
Which Bundestag constituency a German postcode belongs to. Use when you have a German postcode and need the constituency. Source-attributed. Refused (503, not charged) if data is older than 13 hours.
Output
Returns the Bundestag constituency (Wahlkreis) name and number corresponding to the provided 5-digit German postcode, along with source attribution. Data is refreshed every six hours from German official sources.
Example use cases
Voter constituency lookup tool
“I live at a postcode in Munich — 80331 — and want to know which Bundestag constituency I'm in so I can look up my local candidates.”
Journalism research for election coverage
“We're covering the federal election and need to know which Wahlkreis postcode 22767 (Hamburg) maps to so we can pull the right constituency results.”
Constituent contact app enrichment
“We're building an app that helps people contact their Bundestag representative. Given the user's postcode 50667, which constituency number and name should we assign them?”
Technical details
Endpoint
GEThttps://api.polls.karbach.digital/v1/constituencies/by-postcode/:plz?utm_source=zero.xyzWhen to prefer
Use this endpoint when you have a 5-digit German postcode and need to identify the corresponding Bundestag (federal) constituency (Wahlkreis). It is the right choice for voter-facing tools, election journalism, political data enrichment, and any application that needs to bridge a German address or postcode to federal election geography. Prefer it over manual lookup tables because it is source-attributed and updated every six hours.
Side effects
- Invalid postcode format (not exactly 5 digits) — validation error returned
- Postcode does not exist or is not assigned to a constituency — not found response
- Transient upstream data unavailability — service error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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