---
title: "Returns FEC Schedule E independent expenditures — money spent BY a super PAC (or IE-only PAC) uncoordinatedly FOR or AGAINST a federal candidate"
method: GET
path: "/v1/fec-independent-expenditures"
---

# Returns FEC Schedule E independent expenditures — money spent BY a super PAC (or IE-only PAC) uncoordinatedly FOR or AGAINST a federal candidate

`GET /v1/fec-independent-expenditures`

## Request

- Base URL: `https://api.keyvex.com`
- URL: `https://api.keyvex.com/v1/fec-independent-expenditures`
- Auth: API key in header `x-api-key`

Returns FEC Schedule E independent expenditures — money spent BY a super PAC (or IE-only PAC) uncoordinatedly FOR or AGAINST a federal candidate. Hallmark vehicle for political ad spending since Citizens United (2010).  Critical signal: support_oppose_indicator — 'S' = support, 'O' = oppose. A single candidate often has dozens of S and O entries across many super PACs in one cycle. Filter by support_oppose='O' to find attack ads; 'S' to find positive ads.  Source: api.open.fec.gov/v1/schedules/schedule_e/. F24 filings (24-hour notices within 20 days of an election) and F5 (quarterly IE reports) both flow through this endpoint.  Filers FEC classes as "a person or a group" (Form 5 filers, committee types I and E) are served when the filer is a group; a filer whose name is, or may be, a natural person's is withheld per record, as is any filer KeyVex holds no committee record for (FEC sale-or-use rule, 11 CFR 104.15).  Killer query patterns:   - Attack ads on Senator X: candidate_id='S6PA00091' + support_oppose='O'   - Recent spend across a cycle: support_oppose='O' + since='2025-01-01'   - Top political ad vendors: payee_name='AXIOM' (substring)   - Negative spend in a race: candidate_office_state='PA' + support_oppose='O'  Filter combinations note: server-side indexes support one equality filter (candidate_id / committee_id / support_oppose / candidate_office_state) + a date / amount sort. Other filters (payee_name, description, exclude_memos) are applied client-side. NOTE on cycle: the FEC leaves two_year_transaction_period null on many rows, so the `cycle` filter is INCOMPLETE (it undercounts) and is not currently indexed — scope a cycle by DATE instead, e.g. since='2025-01-01' for the 2026 cycle.

## Query parameters

- `sub_id` string
- `committee_id` string
- `candidate_id` string
- `support_oppose` 'S' | 'O'
- `payee_name` string
- `description` string
- `candidate_office` 'H' | 'S' | 'P'
- `candidate_office_state` string
- `min_amount` number
- `max_amount` number
- `since` string
- `until` string
- `cycle` integer
- `exclude_memos` boolean
- `sort_by` 'expenditure_date' | 'expenditure_amount'
- `sort_order` 'asc' | 'desc'
- `limit` integer

## Response `200`

JSON envelope: { results: [...], count, has_more }.

## Other responses

- `400`: Invalid parameter.
- `401`: Missing or invalid API key.
- `402`: This tool requires a higher plan (upgrade_required). Retrying will not help.
- `429`: Tier rate/quota limit reached (rate_limited). Retry-After points at the reset.

---

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