{"slug":"2s-io-api-gov-lobbying-filings-86b899","title":"Search US federal lobbying disclosures (Senate LDA filings) — who lobbies for wh","host":"2s.io","method":"GET","resource":"https://2s.io/api/gov/lobbying-filings","category":"code","description":"Search US federal lobbying disclosures (Senate LDA filings) — who lobbies for whom, on what issues, for how much. Filter by registrant (lobbying firm name), client (organization being represented), lobbyist (individual name), year, period (first_quarter|second_quarter|third_quarter|fourth_quarter|mi","price_listed":0.0072,"price_asked":null,"state":"effects","state_label":"Not tested: has real-world effects","checks_7d":0,"answered_7d":0,"latency_ms_median":null,"reported_calls_30d":1,"reported_payers_30d":1,"networks":["eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"method":"GET","queryParams":{"client":"OpenAI","year":2025},"type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"properties":{"method":{"const":"GET"},"queryParams":{"properties":{"client":{"description":"Client organization name (partial match).","type":"string"},"lobbyist":{"description":"Individual lobbyist name.","type":"string"},"page":{"default":1,"minimum":1,"type":"integer"},"pageSize":{"default":10,"maximum":25,"minimum":1,"type":"integer"},"period":{"enum":["first_quarter","second_quarter","third_quarter","fourth_quarter","mid_year","year_end"],"type":"string"},"registrant":{"description":"Lobbying firm name (partial match).","type":"string"},"type":{"description":"Filing type code, e.g. RR, Q1, Q2.","type":"string"},"year":{"maximum":2030,"minimum":1999,"type":"integer"}}},"type":{"const":"http"}},"required":["type","method","queryParams"],"type":"object"}},"required":["input"],"type":"object"},"history":[],"description_full":"Search US federal lobbying disclosures (Senate LDA filings) — who lobbies for whom, on what issues, for how much. Filter by registrant (lobbying firm name), client (organization being represented), lobbyist (individual name), year, period (first_quarter|second_quarter|third_quarter|fourth_quarter|mid_year|year_end), and type (e.g. RR=registration, Q1-Q4=quarterly reports). Each filing: type, year/period, reported income or expenses (USD), registrant + client (id/name/description/state), lobbying issues (code + description), lobbyist count, official document URL, posted timestamp. Money-in-politics, journalism, and policy-intelligence staple. Public federal data.","last_updated":"2026-09-19T15:57:10.993Z","schemes":["exact"]}