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SEC EDGAR Company CIK Lookup
x402
SEC EDGAR Company CIK Lookup is a paid API for AI agents from agent402.tools, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-11).
Resolves a US stock ticker symbol to its SEC CIK number, enabling all subsequent EDGAR API calls
Price / call$0.001
Success—
StatusUnknown
How this service works
Resolve a US stock ticker (e.g. AAPL) to its SEC CIK number, the primitive every other EDGAR call needs. Returns ticker, cik (zero-padded, 0000320193), cikInt (320193) and the registered company name. Backed by SEC's company_tickers.json (public domain). A company name sent where the ticker goes is answered with a 404 that names the likely tickers ("Tesla" -> TSLA).
Output
Returns the company's SEC CIK number in both zero-padded string format (e.g. 0000320193) and as a plain integer, along with the official registered company name as it appears in EDGAR.
Example use cases
Example prompt
“What is the SEC CIK number for Apple — the ticker is AAPL?”
Technical details
Endpoint
GEThttps://agent402.tools/api/edgar-company-lookup?utm_source=zero.xyzWhen to prefer
Use this endpoint as the first step before making any EDGAR API call that requires a CIK. It is the canonical way to translate a familiar ticker symbol (e.g. AAPL, TSLA) into the numeric CIK that SEC EDGAR uses as its primary company identifier. Prefer this over manual lookups or scraping EDGAR search pages.
Side effects
- Unknown or invalid ticker symbol returns a 404 or empty result
- Ticker for a non-US or non-SEC-registered company will not be found
- Recently listed or delisted companies may not appear in the static company_tickers.json snapshot
- Typos in ticker input return no match
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"cik": "0000320193",
"name": "Apple Inc.",
"cikInt": 320193,
"source": "SEC company_tickers.json",
"ticker": "AAPL"
}
}Tags
x402
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