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SEC CIK-Ticker Resolver (2s.io)
x402
SEC CIK-Ticker Resolver (2s.io) is a paid API for AI agents from 2s.io, paid per call via x402, $0.009/call, status unknown (last checked 2026-09-15).
Bidirectionally resolves SEC CIK identifiers to stock tickers (and vice versa), including listing exchange and canonical company name, sourced from SEC's company_tickers_exchange.json.
Price / call$0.009
Success—
StatusUnknown
How this service works
Resolve SEC CIK <-> ticker in both directions. Pass a ticker to get its CIK; pass a CIK to get every ticker the issuer has (each share class, e.g. GOOG + GOOGL), each with its listing exchange (Nasdaq, NYSE, etc.) and the canonical company name. The CIK is the key to everything in EDGAR -- filings, XBRL facts, Form 4 insider trades, 13F holdings -- so this is the join that turns a ticker an agent has into the identifier EDGAR actually indexes by (and back). Data: SEC company_tickers_exchange.json (US public domain), cached and refreshed daily. Distinct from finance.security-resolve, which also crosses into FIGI/LEI/ISIN; this one is the focused, exchange-aware CIK<->ticker map.
Output
Returns the SEC CIK for a given ticker (or all tickers for a given CIK), including each ticker symbol, its listing exchange (e.g. Nasdaq, NYSE), and the canonical company name as registered with the SEC. For multi-class issuers like Alphabet, all share classes (e.g. GOOG + GOOGL) are returned together.
Example use cases
Example prompt
“What is the SEC CIK for TSLA, and does Tesla have any other share classes listed — like on Nasdaq or NYSE?”
Technical details
Endpoint
GEThttps://2s.io/api/finance/cik-tickerWhen to prefer
Use this endpoint when you need to bridge between a stock ticker an agent has and the SEC CIK required to query EDGAR (filings, XBRL facts, Form 4 insider trades, 13F holdings). Prefer this over finance.security-resolve when you specifically need exchange-aware CIK<->ticker mapping for US equities and do not need cross-standard identifiers like FIGI, LEI, or ISIN.
Side effects
- Ticker not found in SEC universe (e.g. OTC, pink sheet, or non-US securities) — returns empty or error
- Invalid CIK format — returns error
- CIK with no associated tickers (private company or de-listed) — empty result
- Stale data window (~24h cache) may miss very recently listed or renamed tickers
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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