# OSF SEC Filings Search

> OSF SEC Filings Search is a paid API for AI agents from api.osf-master-server.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-13).

Search US SEC filings by keyword across 13F institutional holdings, Form 4 insider transactions, 8-K/10-K/10-Q reports, XBRL financials, and litigation proceedings, returning matched filing metadata with provenance URLs.

## Facts

- Endpoint: GET https://api.osf-master-server.com/x402/sec/filings/:query
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/osf-sec-filings-search-6b177969
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_EdOIcwFoZHZybvWd1Ybij

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 osf-sec-filings-search-6b177969
```

Example prompt: Search SEC filings for 'Berkshire 13F' and show me the most recent institutional holdings filings — I need the filer name, form type, filing date, and a link to the actual document on EDGAR.

## When to prefer this

Use this endpoint when an agent needs to search across multiple SEC form types simultaneously using a single keyword, company name, ticker, CIK, or subject (e.g. 'material weakness'). Prefer over direct EDGAR queries when provenance-stamped, agent-ready responses with normalized metadata are needed for financial research, compliance screening, or due-diligence workflows.

## Known failure modes

- No filings found for the given keyword — returns empty results
- Ambiguous query matching too many filings — may require more specific keyword such as CIK or ticker
- Query string missing or malformed — returns 400-level error
- Payment not received or insufficient — returns 402 Payment Required
- SEC EDGAR or EFTS upstream unavailable — returns 503 or timeout

## How this service works

Search US SEC filings by keyword: institutional holdings (13F), insider transactions (Form 4), 8-K/10-K/10-Q filings, XBRL financials, full-text EFTS hits, litigation and administrative proceedings. Returns filer or company, form type, filing date, and a provenance URL per match. For financial research, compliance, and due-diligence agents.

## Output

Returns a list of matched SEC filings, each with the filer or company name, form type (e.g. 13F, Form 4, 10-K, 8-K), filing date, and a provenance URL linking to the original document on SEC EDGAR or EFTS.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object",
     "required": [
      "query"
     ],
     "properties": {
      "query": {
       "type": "string",
       "description": "Keyword(s): company, ticker, CIK, fund manager, or subject. E.g. 'Berkshire 13F' or 'material weakness'."
      }
     }
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/osf-sec-filings-search-6b177969/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.osf-master-server.com](https://www.zero.xyz/host/api.osf-master-server.com/llms.txt)