Search US federal lobbying disclosures (Senate LDA filings)...
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.
Request
- Base URL: https://2s.io
- URL: https://2s.io/api/gov/lobbying-filings
- Auth: API key in header PAYMENT-SIGNATURE
Query parameters
Registrant.
Client.
Lobbyist.
Four-digit calendar year.
Period.
Filter results by type.
Page number (1-based) for paginated results.
Number of results to return per page.
Try before you buy. Set to 1 for one free real call per endpoint per hour — no wallet or payment needed — to verify the endpoint before paying. Equivalent to sending the "X-2s-Trial: 1" request header. Listed only on operations that offer a trial; the others always answer 402.
Response
Changes
No recorded changes to this operation across all 1 revision of this API.