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/api/v1/cusip/ticker/{ticker}

Resolve Ticker to CUSIP.

Resolve Ticker to CUSIP.

1 tokensSince v1.0.0

Why use this

Reverse direction of [GET /api/v1/cusip/lookup/{cusip}](/docs/reference-data/cusip-api/get-cusip-lookup) — given a ticker, return the CUSIP. Useful when you need to bridge ticker-shaped customer input into CUSIP-shaped 13F query parameters (e.g. `POST /form-13f/holdings` accepts CUSIPs but a UI may want to expose ticker search). Backed by `cusip_security_catalog`. Returns the CURRENT active CUSIP only — to retrieve historical CUSIPs across corporate actions append `?chain=true` (see [/cusip/ticker/{ticker}?chain=true](/docs/reference-data/cusip-api/get-cusip-ticker-chain)).

Common use case

Preparing data for institutional reporting or regulatory filings — converting customer-facing tickers (e.g. `AAPL`) into the CUSIP form (e.g. `037833100`) required by 13F holdings queries, regulatory submissions, and CUSIP6-grouped multi-class drill-downs. Also useful in 'enrich a watchlist of tickers with CUSIPs for batch 13F lookup' flows.

Reverse direction of GET /api/v1/cusip/lookup/{cusip} — ticker-in, CUSIP-out. The natural bridge from customer-facing ticker UIs into CUSIP-shaped downstream APIs (13F holdings query, batch resolution, etc.). Returns the CURRENT primary CUSIP only — to retrieve historical CUSIPs (e.g. RKLB's pre-SPAC G9442R126 -> post-SPAC 773122106 -> current 773121108 chain) append ?chain=true and use the chain variant. For multi-class issuers (BRK-A vs BRK-B) the result is class-specific — pass each ticker variant separately. Server-side ticker normalization (v3.14.2) coerces BRK.A, BRK/A, BRKA all to BRK-A before lookup.

Parameters

NameInRequiredDefaultAllowedDescriptionExample
tickerpathrequired——Canonical hyphen-form ticker (`BRK-A` not `BRK.A`). Server-side normalization applies the v3.14.2 ticker-coercion shim — `BRK.A`, `BRK/A`, `BRKA` all coerce to `BRK-A`. Returns 404 when no active CUSIP mapping exists (delisted issuers, foreign tickers without OpenFIGI coverage).AAPL

Response schema

FieldTypeNullableDescription
tickerstringnoEchoed canonical ticker (post-normalization to hyphen form). Use for index-matching against the request input.
cusipstringno9-character CUSIP for the CURRENT primary security mapped to this ticker. For a ticker like `RKLB` that has been through a SPAC merger, this is the CURRENT CUSIP only — append `?chain=true` to receive the full historical chain instead. For multi-class issuers, this is the most-liquid class only (BRK-A returns the A-class CUSIP, BRK-B returns the B-class CUSIP).
issuer_namestringnoIssuer name from the canonical catalog (all-caps EDGAR convention for SEC-registered issuers — `APPLE INC`).
cikstringyes10-character zero-padded SEC CIK of the issuer (e.g. `0000320193`). Null when the issuer has no SEC registration.
cusip6stringno6-character CUSIP issuer prefix. Multi-class issuers share a CUSIP6 (BRK-A `084670108` and BRK-B `084670702` both share `084670`). Use to group across share classes.

Sample response

·
  • "ticker": "AAPL"
  • "cusip": "037833100"
  • "issuer_name": "APPLE INC"
  • "cik": "0000320193"
  • "cusip6": "037833"
}

Errors

StatusLabelDescription
200OKRequest succeeded.
400Bad RequestInvalid query, body, or path parameter.
401UnauthorizedMissing or invalid Authorization header / api_Token.
402Payment RequiredInsufficient token balance for this call. Top up
429Too Many RequestsRate limit exceeded for your tier (see /pricing for tier limits). Tier limits
500Server ErrorUnexpected server-side failure. Retry with backoff; report if persistent.

Code samples

curl "https://api.finradar.ai/api/v1/cusip/ticker/{ticker}?api_Token=YOUR_API_KEY" \
  -H "Authorization: Bearer YOUR_JWT_TOKEN"

Generate an API key in /account/credentials to run live queries (literal YOUR_API_KEY placeholder shown until then).