/api/v1/sec/formsList all supported form types with descriptions.
List all supported form types with descriptions. Each entry includes form_type, root_form_type, a human-readable description (covers all 352 root types), filing_count, first_filed, and last_filed. Amendment variants (/A) auto-append '(Amendment)' to the root type's description.
Why use this
Common use case
Cheap (1 token) catalog endpoint — every distinct form type in the local filings index with human-readable descriptions, filing counts, and date-range bookends. Use to populate form-type dropdowns and tooltips in search UIs without hardcoding the full SEC form catalog (352 root types per SEC). Sorted by filing_count DESC so the most-filed forms (4, 13F-HR, 8-K, 10-K, 10-Q, S-1, 144, 13D, 13G, DEF 14A, 20-F) surface first. Amendment variants (/A suffix) auto-append "(Amendment)" to the description. For drill-into-a-specific-form-type, use GET /api/v1/sec/forms/{form_type} which returns the same fields but for one form. To filter the filings index by form type, use GET /api/v1/sec/filings?form_type=....
Parameters
| Name | In | Required | Default | Allowed | Description | Example |
|---|---|---|---|---|---|---|
| q | query | optional | — | — | Search form types by name — case-insensitive substring match against `form_type`. E.g. `q=13F` returns `13F-HR`, `13F-NT`, `13F-HR/A`. Use to narrow large lists; omit for full catalog. | 13F |
| limit | query | optional | 500 | — | Max results — clamped server-side to range `[1, 1000]`. Use 500 (default) for full catalog dropdowns; lower (10-20) for autocomplete-style hints. | 20 |
Response schema
| Field | Type | Nullable | Description |
|---|---|---|---|
| status | string | no | Always `"success"` on 2xx. ApiResponse envelope marker — wraps via `ApiResponse.success()`. |
| request_id | string | yes | Per-request UUID generated server-side. |
| timestamp | string | no | ISO-8601 UTC timestamp the response was generated server-side. |
| data | array | no | Array of form-type entries sorted by `filing_count DESC` (most-common forms first). Up to `limit` entries (default 500). One entry per distinct `form_type` — see `data[].*` for shape. |
| data[].form_type | string | no | Canonical SEC form type as it appears in filings (e.g. `4`, `13F-HR`, `8-K`, `10-K`, `10-Q`, `13D`, `13G`, `S-1`, `20-F`, `144`, `DEF 14A`, `13F-HR/A`). Amendment variants append `/A`. NT-prefixed forms (`NT 10-K`, `13F-NT`) appear verbatim. |
| data[].root_form_type | string | no | Form type with the `/A` amendment suffix stripped (e.g. `13D/A` → `13D`, `10-K/A` → `10-K`). Useful for grouping amendments alongside their original-filing siblings (`SELECT * FROM forms WHERE root_form_type = '13D'`). For non-amendment forms, this equals `form_type`. |
| data[].description | string | no | Human-readable description of the form's purpose (e.g. for `4` = "Statement of Changes in Beneficial Ownership", for `13F-HR` = "Information Required of Institutional Investment Managers Form 13F", for `S-1` = "Registration Statement under the Securities Act of 1933"). Covers all 352 SEC root form types. For amendments, the suffix " (Amendment)" is auto-appended. |
| data[].filing_count | integer | no | Count of filings of this exact `form_type` in the local index. Reflects ingest coverage, not SEC's universe — recently-onboarded form types may show low counts here even though they're widely filed. |
| data[].first_filed | string | yes | ISO date `YYYY-MM-DD` of the EARLIEST filing of this type in the local index. Null when no filings have a `filed_date` (rare). Useful for spotting newly-introduced form types (e.g. `2026-` indicates a form added recently). |
| data[].last_filed | string | yes | ISO date `YYYY-MM-DD` of the MOST RECENT filing of this type in the local index. Null when no filings have a `filed_date`. Forms that haven't been filed in years (e.g. `last_filed: '2018-...'`) suggest deprecated form types — useful for hiding legacy types from active dropdowns. |
Sample response
- "status": "success"
- "request_id": "0f14ed05-3a2e-4b76-9c11-1a7c8b3f6de2"
- "timestamp": "2026-05-02T16:30:14.122Z"
- "data":
Errors
| Status | Label | Description |
|---|---|---|
| 200 | OK | Request succeeded. |
| 400 | Bad Request | Invalid query, body, or path parameter. |
| 401 | Unauthorized | Missing or invalid Authorization header / api_Token. |
| 402 | Payment Required | Insufficient token balance for this call. Top up |
| 429 | Too Many Requests | Rate limit exceeded for your tier (see /pricing for tier limits). Tier limits |
| 500 | Server Error | Unexpected server-side failure. Retry with backoff; report if persistent. |
Code samples
curl "https://api.finradar.ai/api/v1/sec/forms?api_Token=YOUR_API_KEY" \
-H "Authorization: Bearer YOUR_JWT_TOKEN"Generate an API key in /account/credentials to run live queries (literal YOUR_API_KEY placeholder shown until then).