# SEC 13F Institutional Holdings Filings

> SEC 13F Institutional Holdings Filings is a paid API for AI agents from cycle-angela-lamp-hamburg.trycloudflare.com, paid per call via x402, $0.05/call, status down (last checked 2026-09-15).

Returns the latest 40 SEC 13F-HR institutional holdings filings including filer name, filing date, and document link as a JSON array.

## Facts

- Endpoint: GET https://cycle-angela-lamp-hamburg.trycloudflare.com/api/us/13f-filings
- Price: $0.05/call
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sec-13f-institutional-holdings-filings-0fde7dbb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_lqWKxaM092Qe95SsOjOUR

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 sec-13f-institutional-holdings-filings-0fde7dbb
```

Example prompt: Pull up the latest SEC 13F institutional holdings filings — I want to see which hedge funds and institutions have recently disclosed their portfolios, including the filing dates and links to the documents.

## When to prefer this

Use this endpoint when you need a quick snapshot of the most recent 13F-HR institutional holdings filings without building an SEC EDGAR integration yourself. Ideal for financial research agents that need current hedge fund disclosure data, portfolio transparency analysis, or regulatory filing monitoring. Best when breadth (latest 40 filings across all institutions) matters more than filtering by specific fund.

## Known failure modes

- Network timeout or Cloudflare tunnel unavailability returns a connection error
- Payment not processed (x402 protocol failure) results in 402 Payment Required
- SEC EDGAR source temporarily unavailable may return stale or empty filings array
- No query parameters supported — if caller sends unexpected params, they are silently ignored

## How this service works

SEC 13F institutional holdings filings: latest hedge fund and institution portfolio disclosures, filer name, filing date, document link. JSON array.

## Output

A JSON object containing an array of up to 40 recent 13F-HR institutional filings, each with the institution name, filing date (filed_at), and a document link (doc), plus a generated_at Unix timestamp indicating when the payload was built.

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "filings": {
   "type": "array",
   "items": {
    "type": "object",
    "properties": {
     "doc": {
      "type": "string"
     },
     "filed_at": {
      "type": "string"
     },
     "institution": {
      "type": "string"
     }
    }
   },
   "description": "latest 40 institutional 13F-HR filings"
  },
  "generated_at": {
   "type": "integer",
   "description": "unix seconds when payload was built"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sec-13f-institutional-holdings-filings-0fde7dbb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from cycle-angela-lamp-hamburg.trycloudflare.com](https://www.zero.xyz/host/cycle-angela-lamp-hamburg.trycloudflare.com/llms.txt)