Indices
Equity indices whose constituents are published: the major US indices (the S&P 500, Nasdaq-100, Dow Jones Industrial Average, S&P MidCap 400 and S&P SmallCap 600, and the Russell 1000 and 2000), refreshed Tuesday to Saturday mornings (New York time) after each session, and about 160 other indices of the US, Canada, the United Kingdom, France, the Netherlands and Australia whose members the source lists and mostly trade on listings OHLC carries, such as the S&P 100, the NYSE Composite, the S&P/TSX Composite, the FTSE 100 and 250, the CAC 40, the AEX and the S&P/ASX 200, refreshed weekly. An index is listed for the keys whose plan includes the market most of its members trade in. Each index has an instrument_id of its own, the ID /v1/indices/{instrument_id}/constituents takes. An index is not a tradable listing, but its level is served as one under the INDEX venue, with the same instrument_id: the S&P 500 is INDEX:GSPC in /v1/eod, /v1/bars, /v1/snapshot and /v1/quotes, for keys whose plan includes index levels, alongside about 1,700 other indices worldwide. The Russell 1000 and 2000 and the FTSE UK indices (the FTSE 100, 250, 350, All-Share and AIM All-Share) have no levels: the source lists their members but does not price them. Default order: id ascending. Omitting entity selectors returns the entitled universe; explicit unauthorized selectors return 403. Data is delivered from validated canonical batches; a connected dataset with nothing published for the key's markets yet returns 503. Access requires the operation capability on the API key.
/v1/indices- Required capability
- indices.read
- Data timing
- As published by the source
- Credits
- 5 credits per request.
Parameters
instrument_idsstringoptional · query- Filter by stable instrument IDs. IDs and symbols may not be combined.
symbolsstringoptional · query- Convenience lookup for exchange-listed instruments as MIC:TICKER or a bare ticker, which resolves to the exchange listing that ticker; resolves at symbol_at. The MIC and the ticker are case-insensitive, and two spellings of one listing (AAPL and XNAS:AAPL) count as a repeated value. A bare ticker that names no listing as written is also read in the common vendor spellings: with an exchange suffix (RY.TO, SHEL.L, VOD.LSE, BHP.AX), ^GSPC for INDEX:GSPC, and EURUSD=X or EURUSD for FOREX:EUR-USD. A ticker may contain a space (BAC PRL) but not start or end with one. A request in which no symbol resolves returns 404 symbol-not-resolved; otherwise each symbol that does not resolve, or resolves to a listing with no rows for the request (no-data), is an entry of meta.errors. IDs and symbols may not be combined.
symbol_atstringoptional · query- Resolve symbols as they were assigned at the end of this UTC date (YYYY-MM-DD); defaults to as_of. Only listings the security master holds resolve: it was built in September 2026 and records delistings from then on, so most issuers delisted earlier, such as TWTR or SIVB, resolve at no date. Only valid with symbols.
effective_datestringoptional · query- Effective date, defaults to the UTC date of as_of. Returns the latest eligible snapshot on or before this date; response retains its actual snapshot date.
as_ofstringoptional · query- Knowledge cutoff as a UTC date (YYYY-MM-DD): the response reflects what was known by the end of that day. Defaults to now; cannot be in the future. A date from before the dataset's knowledge history returns 422 point-in-time-unavailable naming the earliest one, which GET /v1/datasets lists as earliest_as_of.
known_fromstringoptional · query- First UTC date (YYYY-MM-DD, inclusive) on which a revision became known.
known_tostringoptional · query- Last UTC date (YYYY-MM-DD, inclusive) on which a revision became known; on or after known_from.
orderstringoptional · query- Direction on id; ties use ID ascending.
Default:ascdescasc limitintegeroptional · query- Maximum records per page.Default:
100 cursorstringoptional · query- Opaque cursor, expires after one hour; binds filters, order, resolved as_of, account/key and entitlement. Repeat the original query unchanged.
formatstringoptional · query- Response format. csv returns the data rows with a header row, for spreadsheet functions such as IMPORTDATA; nested fields become dotted columns and lists one JSON array cell, the next page cursor is returned in X-Next-Cursor and meta.errors in X-Meta-Errors. A result without rows is the header row alone, listing the documented fields of a row. Default json, or csv when format is omitted and the Accept header ranks text/csv above JSON; a format the Accept header does not admit returns 406 not-acceptable.
jsoncsv
Response fields
Returns data as an array of records. All example values are illustrative.
idstring- Record identifier, stable across revisions.
instrument_idstring- Opaque stable public identifier; never an internal database key.
namestring- Index name.
currency_codestring · null- ISO 4217 currency. Crypto quote assets use instrument IDs, not invented ISO codes.
Response metadata
Responses include meta.timezone. Dataset responses include next_cursor; health and exports have their own metadata. Request tracing uses the X-Request-ID header.
When something goes wrong
An empty data: [] is a successful query with no matching records. Invalid symbols, permissions and malformed parameters produce an RFC 9457 problem with an actionable detail.
Plans
Requires indices.read. Access, recency and history depth come from the plan definitions the API enforces.
| Plan | Access | Recency | History |
|---|---|---|---|
| Free | Not included | — | — |
| Developer | Not included | — | — |
| Pro | Included | As published | 15 years |
| Commercial | Included | As published | Full history |
| Scale | Included | As published | Full history |
History is how far back a plan may request. How far records actually go for a symbol is history_from in dataset coverage. Nothing is real-time. Compare plans