Tools Reference
Senate Lobbying Disclosures
5 tools for accessing Senate Lobbying Disclosures data. No additional API key required.
lobbying-search
Search lobbying disclosure filings to find out who is lobbying Congress, on what issues, and how much they're spending.
Parameters
| Name | Type | Required | Description |
|---|---|---|---|
| registrant_name | string | optional | Name of the lobbying firm or registrant |
| client_name | string | optional | Name of the client who hired the lobbyist |
| issue_code | string | optional | General issue area code: HCR=Health, TAX=Taxation, DEF=Defense, ENV=Environment, ENG=Energy |
| filing_year | number | optional | Year the filing was submitted (e.g., 2025) |
| filing_type | string | optional | Filing type: 'Q1', 'Q2', 'Q3', 'Q4' |
| page_size | number | optional | Number of results (max 25) |
Example
lobbying-search(client_name: "Amazon", filing_year: 2025)lobbying-filing-detail
Get full detail on a specific lobbying filing including every issue lobbied, legislative descriptions, and lobbyist names.
Parameters
| Name | Type | Required | Description |
|---|---|---|---|
| filing_uuid | string | required | The UUID of the lobbying filing from lobbying-search results |
Example
lobbying-filing-detail(filing_uuid: "abc123-...")lobbying-contributions
Search campaign contributions made by lobbyists — shows which lobbyists donated to which politicians.
Parameters
| Name | Type | Required | Description |
|---|---|---|---|
| filing_year | number | optional | Year the contribution filing was submitted |
| registrant_name | string | optional | Name of the lobbying firm |
| lobbyist_name | string | optional | Name of the individual lobbyist |
| page_size | number | optional | Number of results (max 25) |
Example
lobbying-contributions(filing_year: 2025)lobbying-registrants
Search lobbying firms and organizations registered to lobby Congress.
Parameters
| Name | Type | Required | Description |
|---|---|---|---|
| name | string | required | Name of the lobbying firm or organization |
| page_size | number | optional | Number of results (max 25) |
Example
lobbying-registrants(name: "Akin Gump")lobbying-lobbyists
Search individual lobbyists by name or firm.
Parameters
| Name | Type | Required | Description |
|---|---|---|---|
| name | string | optional | Name of the lobbyist |
| firm | string | optional | Name of the lobbying firm |
| page_size | number | optional | Number of results (max 50) |
Example
lobbying-lobbyists(firm: "Akin Gump")