Search US federal lobbying disclosures (Senate LDA filings) — who lobbies for wh
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.
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Endpoint
GET https://2s.io/api/gov/lobbying-filings
| Category | Code and developer |
|---|---|
| Provider host | 2s.io |
| Networks | eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
We never call tools that send, buy, move money or file anything, not even without paying.
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"client": "OpenAI",
"year": 2025
},
"type": "http"
}
Promised output schema (from the provider)
{
"$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"
}