# SEC Form 13F Institutional Holdings Lookup

> SEC Form 13F Institutional Holdings Lookup is a paid API for AI agents from market.memoryapi.org, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).

Retrieves the latest SEC Form 13F filing date and link for any institutional investor by CIK or name

## Facts

- Endpoint: GET https://market.memoryapi.org/x402/market/holdings
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/market-memoryapi-org-e81b4855
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_1mE4CmQeo4hsQM96PzzOb

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 market-memoryapi-org-e81b4855
```

Example prompt: What's the latest 13F filing date and link for Bridgewater Associates on SEC EDGAR? You can search by their name or CIK.

## When to prefer this

Use this endpoint when you need to quickly look up the most recent 13F filing metadata (date and SEC link) for a specific institutional investor by name or CIK, without needing to parse full holdings data. Ideal for compliance checks, research workflows, or surfacing filing recency for any known institution.

## Known failure modes

- Institution not found by name or CIK — returns empty or error response
- CIK does not correspond to a 13F filer — may return no filings
- Institution has never filed a 13F — no results returned
- Name search is ambiguous — may return wrong or multiple institutions
- Payment failure via x402 — 402 status returned before data is served

## How this service works

Institutional investor SEC Form 13F filings. Look up any institution by CIK or name to get their latest 13F filing date and link.

## Output

Returns the institution's latest 13F filing date and a direct link to the SEC EDGAR filing, along with the institution's name and CIK identifier.

## Example request

```json
{
 "cik": "0001067983"
}
```

## Request schema (JSON Schema)

```json
{
 "properties": {
  "input": {
   "required": [
    "method"
   ],
   "properties": {
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "example": {
  "cik": "1067983",
  "source": "SEC EDGAR Form 13F",
  "success": true,
  "filing_url": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001067983&type=13F",
  "latest_13f_date": "2024-11-14",
  "institution_name": "BERKSHIRE HATHAWAY INC"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/market-memoryapi-org-e81b4855/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market.memoryapi.org](https://www.zero.xyz/host/market.memoryapi.org/llms.txt)