{"name":"polls.karbach.digital API","about":"Structured German election data for AI systems. Reading the website stays free for people; machine access is paid per call via x402.","payment":{"protocol":"x402","asset":"USDC","network":"Base Sepolia (testnet)","network_id":"eip155:84532","pay_to":"0x687499913C77ab0D1Fa44176D578Bc95760239EC","how":"Call an endpoint. You get HTTP 402 with the price. Pay with an x402 client and repeat the call."},"free":{"overview":"https://api.polls.karbach.digital/v1/","elections":"https://api.polls.karbach.digital/v1/elections","openapi":"https://api.polls.karbach.digital/openapi.json","llms":"https://api.polls.karbach.digital/llms.txt"},"paid":[{"endpoint":"/v1/federal/trend","price_usd":0.01,"description":"Federal polling average today per party with 95 percent band (Bundestag)."},{"endpoint":"/v1/polls/latest","price_usd":0.01,"description":"Latest federal polls (Sonntagsfrage), party names normalised."},{"endpoint":"/v1/track-record","price_usd":0.01,"description":"Frozen forecasts versus official results, 2026 out of sample and 34-election backtest."},{"endpoint":"/v1/elections/:id","price_usd":0.02,"description":"One German election: vote share median, 95 percent band, seats, arithmetic majorities, data quality."},{"endpoint":"/v1/constituencies/:nr","price_usd":0.02,"description":"One Bundestag constituency (1 to 299): 2025 result, 2029 scenario, members, structure data."},{"endpoint":"/v1/federal/history","price_usd":0.05,"description":"Weekly federal polling average, up to 24 months."},{"endpoint":"/v1/constituencies/by-postcode/:plz","price_usd":0.01,"description":"Which Bundestag constituency a German postcode belongs to."},{"endpoint":"/v1/constituencies/:nr/race","price_usd":0.02,"description":"Who wins the direct mandate in a constituency: win probability per party, margin, rating."},{"endpoint":"/v1/constituencies/:nr/results","price_usd":0.02,"description":"Official Bundestag results of a constituency 2013 to 2025 (first and second vote, turnout)."},{"endpoint":"/v1/members","price_usd":0.01,"description":"All members of the Bundestag with party, constituency and mandate type."},{"endpoint":"/v1/members/:id","price_usd":0.02,"description":"One member of the Bundestag: profile, committees, documents, latest speeches, roll-call record."},{"endpoint":"/v1/members/:id/votes","price_usd":0.02,"description":"Roll-call votes of one member with title, date and whether against the party line."},{"endpoint":"/v1/bundestag/votes","price_usd":0.02,"description":"Recorded roll-call votes in the Bundestag with result per parliamentary group and dissenters."},{"endpoint":"/v1/institutes","price_usd":0.02,"description":"Polling institutes: accuracy of final polls in past elections and average bias per party."},{"endpoint":"/v1/briefing/today","price_usd":0.02,"description":"Today's political situation in Germany in a few paragraphs (German), based on the model."},{"endpoint":"/v1/briefing/:date","price_usd":0.02,"description":"Daily political briefing for a past date (YYYY-MM-DD, from 2026-04-19)."},{"endpoint":"/v1/governments","price_usd":0.01,"description":"Who governs federally and in each of the 16 states: coalition, head of government, since when."},{"endpoint":"/v1/results/federal/:kind","price_usd":0.02,"description":"Federal election statistics: postal-vote, ticket-splitting, age-groups or turnout."},{"endpoint":"/v1/live/:id","price_usd":0.01,"description":"Election night: counted share, turnout, results so far and deviation from the forecast."},{"endpoint":"/v1/bundestag/committees","price_usd":0.01,"description":"All Bundestag committees with official name, chair and members (role, group)."},{"endpoint":"/v1/bundestag/speeches","price_usd":0.02,"description":"Search Bundestag plenary speeches by member, keyword and date: speaker, date, excerpt, protocol PDF."},{"endpoint":"/v1/bundestag/documents","price_usd":0.02,"description":"Search Bundestag printed papers (motions, minor interpellations) by keyword, type and date with authors and PDF."},{"endpoint":"/v1/polls/archive","price_usd":0.05,"description":"Poll archive (federal and state), filter by date range and parliament, up to 500 per call."}],"update_rhythm":"Model runs every six hours (00, 06, 12, 18 Europe/Berlin).","source":{"polls":"dawum.de","polls_license":"ODbL 1.0","polls_license_url":"https://opendatacommons.org/licenses/odbl/1-0/","processing":"polls.karbach.digital (Max Karbach)"},"notice":"Scenario analysis based on published opinion polls. Not a prediction and not a voting recommendation. Coalitions are arithmetic majorities only, not statements about political feasibility.","project":"Ein Projekt von Karbach.Digital (https://karbach.digital)","website":"https://polls.karbach.digital"}