Campaign finance & influence

Lobbying Filings

Returns Lobbying Disclosure Act (LDA) filings — quarterly LD-2 reports filed by registered lobbyist firms with the Senate Office of Public Records. Each record covers one (registrant, client, quarter) tuple, listing income paid, issues lobbied on, and government entities contacted.

EndpointGET /v1/lobbying-filings

SourceSenate LDA

Authx-api-key — a free key works

What it returns

One record per result. Fields (from a live response):

Identity — registrant_id, client_description, client_id, client_state, client_name, registrant_country, client_is_government, registrant_state, client_country, registrant_name
Subject — general_issue_codes
Dates — filing_period_display, filing_period, filing_year, dt_posted, termination_date
Amounts — income, expenses
Provenance — filing_uuid, filing_document_url, data_source
Details — filing_type_display, filing_type, id, government_entities, lobbying_activities, lobbyist_names

Filters

registrant_name	Substring match against the lobbying firm's name (case-insensitive). E.g., 'Akin Gump', 'Brownstein'.
client_name	Substring match against the paying client's name (case-insensitive). E.g., 'Pfizer', 'Lockheed Martin', 'STATE OF CALIFORNIA'.
filing_year	Calendar year of the reporting period (NOT the filing date).
filing_period	Reporting period within filing_year. Quarters for LD-2; mid_year/year_end for LD-203 contributions windows.
general_issue_codes	Array of 3-char issue codes (OR semantics). E.g., ['DEF'] for defense, ['HEA','MMM'] for health+Medicare. Max 30 codes per query. (comma-separated)
government_entity	Substring match against any government entity contacted. E.g., 'SENATE', 'Treasury', 'FDA', 'Defense, Dept of'.
min_income	Filter to filings with income >= this amount (USD). Use to focus on big-dollar lobbying spend.
since	ISO date (YYYY-MM-DD). Only records on or after this date, using sort_by as the date field.
until	ISO date (YYYY-MM-DD). Only records on or before this date.
sort_by	Field used for ordering and for since/until filters. Default: dt_posted (when the filing was submitted).
sort_order	Default: desc (most recent / largest first).
limit	Maximum records to return. Default 50, max 500.

Example request

curl "https://api.keyvex.com/v1/lobbying-filings?limit=1" \
  -H "x-api-key: YOUR_KEY"

Response

{
  "results": [
    {
      "income": null,
      "filing_period_display": "2nd Quarter (Apr 1 - June 30)",
      "filing_type_display": "Registration",
      "registrant_id": 401104982,
      "filing_period": "second_quarter",
      "general_issue_codes": [
        "DEF"
      ],
      "client_description": "High Performance Electric UTVs",
      "client_id": 73596,
      "client_state": "PA",
      "filing_type": "RR",
      "filing_uuid": "d27095f5-33f0-4a72-bf92-686360082433",
      "id": "d27095f5-33f0-4a72-bf92-686360082433",
      "client_name": "SUPER POWERS MOBILITY",
      "filing_document_url": "https://lda.gov/filings/public/filing/d27095f5-33f0-4a72-bf92-686360082433/print/",
      "filing_year": 2026,
      "government_entities": [],
      "registrant_country": "US",
      "dt_posted": "2026-06-17T14:10:54-04:00",
      "lobbying_activities": [
        {
          "general_issue_code": "DEF",
          "general_issue_code_display": "Defense",
          "description": "Issues related to electric UTV adoption in the defense sector.",
          "description_truncated": false,
          "foreign_entity_issues": "",
          "lobbyist_names": [
            "AUSTIN HIGGINBOTHAM",
            "AUSTIN AGRELLA",
            "STONEY BURKE"
          ],
          "government_entities": []
        }
      ],
      "data_source": "SENATE_LDA",
      "lobbyist_names": [
        "AUSTIN HIGGINBOTHAM",
        "AUSTIN AGRELLA",
        "STONEY BURKE"
      ]
      …
    }
  ],
  "count": 1,
  "has_more": true
}

Example questions you can answer

Who lobbied on a given issue last quarter?
Lobbying spend by a registrant or client.

Related datasets

FEC CandidatesFEC candidates + committees Campaign ContributionsFEC Schedule A Independent ExpendituresFEC Schedule E Foreign Agents (FARA)DOJ FARA

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