# U.S. Senate Lobbying Disclosure Act (LDA) Filings Lookup

> U.S. Senate Lobbying Disclosure Act (LDA) Filings Lookup is a paid API for AI agents from bryan-hermes.lenok-gorgon.ts.net:8443, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-13).

Retrieves LDA lobbying filings for a named registrant, client, or lobbyist — including total income/expenses, issue codes, targeted government bodies, and counterparty relationships.

## Facts

- Endpoint: GET https://bryan-hermes.lenok-gorgon.ts.net:8443/v1/lobbying?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/u-s-senate-lobbying-disclosure-act-lda-filings-lookup-a37982c3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_4RMMhPsieJ6k3LNDukDM4

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability u-s-senate-lobbying-disclosure-act-lda-filings-lookup-a37982c3
```

Example prompt: Pull the LDA lobbying profile for Lockheed Martin as a client for Q2 2023 — I want to see which lobbying firms they hired, what those firms were paid, and which issue codes they lobbied on.

## When to prefer this

Use this endpoint when you need structured, normalized U.S. Senate LDA lobbying disclosure data for a specific named entity — either a lobbying firm (registrant) or a company that hires lobbyists (client) — and want income/expenses separated, issue codes normalized, and counterparty relationships resolved. Prefer this over raw EDGAR or Federal Register endpoints when the question is specifically about lobbying activity, spend, or issue targeting rather than SEC filings or regulatory rulemaking.

## Known failure modes

- Entity name not found or misspelled — returns empty results or no match
- Ambiguous entity name matching multiple filers — may return unexpected records
- Year or quarter outside available LDA data range — returns empty or error
- Limit parameter exceeding 100 — capped or rejected
- No filings exist for the specified period — empty result set
- Network or upstream LDA data source unavailable — service error

## How this service works

U.S. Senate Lobbying Disclosure Act filings for one named entity: total disclosed income and expenses, the issue codes lobbied on, government bodies targeted, individuals registered, and counterparties - a lobbying firm's client roster, or a client's hired firms. Normalizes the LDA issue code table and separates income from expenses, which are reported per filing and are not interchangeable. One entity per call.

## Output

Returns structured LDA filing data for the queried entity: total disclosed income and/or expenses (separated and labeled as non-interchangeable), normalized LDA issue codes lobbied on, government bodies and agencies targeted, individual lobbyists registered under the entity, and counterparty relationships (either the clients a firm represents or the firms a client has hired). Results are scoped to the requested year, quarter, and entity type.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {
      "year": {
       "type": "integer",
       "description": "Filing year (defaults to the current year)"
      },
      "limit": {
       "type": "integer",
       "default": 100,
       "description": "Max filings returned (<=100)"
      },
      "client": {
       "type": "string",
       "description": "Profile the CLIENT being lobbied for, e.g. Lockheed Martin - returns which lobbying firms they hired and what they were paid"
      },
      "quarter": {
       "type": "string",
       "description": "q1 | q2 | q3 | q4"
      },
      "lobbyist": {
       "type": "string",
       "description": "Profile one named individual lobbyist"
      },
      "registrant": {
       "type": "string",
       "description": "Profile the LOBBYING FIRM doing the lobbying, e.g. Akin - returns its client roster and billings"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/u-s-senate-lobbying-disclosure-act-lda-filings-lookup-a37982c3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from bryan-hermes.lenok-gorgon.ts.net:8443](https://www.zero.xyz/host/bryan-hermes.lenok-gorgon.ts.net%3A8443/llms.txt)