---
title: "Returns FERC eLibrary document records — every public filing at the Federal Energy Regulatory Commission: Issuances (orders, notices, delegated letters BY FERC) and Submittals (rate filings, tariff changes, compliance reports, protests, hydro license paperwork TO FERC) across the Electric, Natural Gas, Oil, Hydro, Rulemaking, and General libraries (~1,300 documents/week)"
method: GET
path: "/v1/ferc-filings"
---

# Returns FERC eLibrary document records — every public filing at the Federal Energy Regulatory Commission: Issuances (orders, notices, delegated letters BY FERC) and Submittals (rate filings, tariff changes, compliance reports, protests, hydro license paperwork TO FERC) across the Electric, Natural Gas, Oil, Hydro, Rulemaking, and General libraries (~1,300 documents/week)

`GET /v1/ferc-filings`

## Request

- Base URL: `https://api.keyvex.com`
- URL: `https://api.keyvex.com/v1/ferc-filings`
- Auth: API key in header `x-api-key`

Returns FERC eLibrary document records — every public filing at the Federal Energy Regulatory Commission: Issuances (orders, notices, delegated letters BY FERC) and Submittals (rate filings, tariff changes, compliance reports, protests, hydro license paperwork TO FERC) across the Electric, Natural Gas, Oil, Hydro, Rulemaking, and General libraries (~1,300 documents/week). Use this when the user asks about: a FERC docket or rate case, pipeline / utility / hydro regulatory activity, FERC orders affecting a company, or energy infrastructure proceedings.  The DOCKET NUMBER is the join key across a proceeding. Format: PREFIX + two-digit year + sequence, e.g. 'ER26-1234' (Electric rate), 'RP26-930' (gas pipeline rate), 'CP26-15' (gas pipeline certificate/construction), 'P-5737' (hydro project — no year), 'EL26-50' (Electric complaint/investigation), 'RM26-3' (rulemaking). docket_number accepts the root ('RP26-930') or a full sub-docket ('RP26-930-000'). Records carry docket_numbers (verbatim) plus docket_prefixes for quick classification.  Record shape: accession_number (e.g. '20260708-3001' — the unique document key), category ('Issuance' | 'Submittal'), description, filed/issued/posted dates, class_types (document class + type), libraries, authors[] / recipients[], and transmittal file metadata. Documents themselves are NOT in the record — agents download the primary attached file via source_url (eLibrary filedownload link).  Pure-publisher posture: FERC's search metadata as published — no outcome predictions or case scoring.

## Query parameters

- `accession_number` string
- `docket_number` string
- `library` string
- `category` 'Issuance' | 'Submittal'
- `class_type` string
- `text` string
- `since` string
- `until` string
- `sort_by` 'posted_date' | 'filed_date'
- `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.

---

[API](https://skmtc.dev/keyvex/apis/keyvex-api.md) · [All operations](https://skmtc.dev/keyvex/apis/keyvex-api/llms.txt) · [OpenAPI document](https://skmtc.dev/keyvex/apis/keyvex-api/revisions/01c0210c19cd?raw)