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SiteCheck Company Ticker Lookup
x402
SiteCheck Company Ticker Lookup is a paid API for AI agents from api.sitecheck-api.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-16).
Look up US public company details (CIK, name, ticker, exchange) by ticker symbol, CIK number, or company name fragment using SEC data
Price / call$0.001
Success—
StatusUnknown
How this service works
Maps a US-listed stock ticker, SEC CIK number or company name fragment to the other two, with the exchange: an exact ticker or CIK, or up to 10 names matching the words you give (the names that start with it first). From the SEC's company ticker file (public domain), cached a day and trimmed before caching. Covers companies with an SEC ticker only; a name with no match is a 404, not charged.
Output
Returns a JSON object with the total match count, the query string used, the data source (SEC company_tickers_exchange.json), a timestamp, and an array of matching companies each containing their CIK (integer and zero-padded string), official registered name, ticker symbol, and stock exchange.
Example use cases
Resolve ticker to SEC CIK for filings
“I need to pull SEC filings for Tesla — can you find their CIK number using their ticker TSLA?”
Identify exchange for a stock ticker
“What exchange does NVDA trade on? Look up Nvidia's company record and tell me the exchange and their full registered name.”
Search company by partial name
“Find me all US public companies whose name starts with 'Alphabet' — I want their tickers, CIK numbers, and which exchange they're listed on.”
Technical details
Endpoint
GEThttps://api.sitecheck-api.workers.dev/api/company/ticker?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to resolve a US public company identifier (ticker, CIK, or name) to structured SEC metadata including CIK and exchange listing. It is ideal as a first step before querying SEC filings or financial data. Prefer this over general web search when you need a precise, authoritative CIK number or exchange name from public SEC records.
Side effects
- Query string shorter than 3 characters for name search returns an error or empty results
- Unknown ticker or CIK returns an empty companies array with count 0
- Non-US or private companies not in SEC data will not be found
- Network timeout or upstream SEC data unavailability causes service error
- Ambiguous name fragments may return many results requiring further filtering
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"count": 1,
"query": "AAPL",
"source": "SEC company_tickers_exchange.json (US public domain)",
"checkedAt": "2026-10-15T14:16:00.991Z",
"companies": [
{
"cik": 320193,
"name": "Apple Inc.",
"ticker": "AAPL",
"exchange": "Nasdaq",
"cikPadded": "0000320193"
}
]
}
}Tags
x402
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