emerging · -0.2 capabilitymarket resourcedomain

Indices

Score 22.5 / 100 11 providers +20 via APIs 27 APIs Search apis.io →
Business capabilities this tag reaches
Cybersecurity Management 1

Providers using this tag (11)

Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.

Exemplar 1 Complete, well-documented, and agent-ready
Massive (formerly Polygon.io)FinanceFintechMarket DataStocks7 APIs75.8
Strong 2 Solid coverage with minor gaps
Market DataMarket DataFinancial DataStocksOptions2 APIs61.0ThetaDataFinanceMarket DataOptionsStocks1 API59.8
Developing 3 Usable, with meaningful gaps to close
KaikoWeb3CryptoMarket DataInstitutional1 API52.4JPX (Japan Exchange Group)FinanceMarket DataStocksExchange8 APIs51.6FinageFinanceMarket DataStocksForex1 API44.2
Thin 4 Limited public surface area
iTickFinancial DataMarket DataStocksForex1 API38.7StooqFintechMarket DataStocks1 API34.6Capital.com Public APICFDCommoditiesCryptocurrencyFinance8 APIs31.5EuronextFinanceMarket DataStocksExchange5 APIs28.9
Emerging 1 Early or largely undocumented
Bloomberg IndicesFixed IncomeEquityCommodities3 APIs19.1

APIs with this tag (27)

Ranked by the provider's API Evangelist rating — the Kin Score is scored per provider, not per API, so every API of a provider shares its band. How the rating works →

Exemplar 2 Complete, well-documented, and agent-ready
Elastic Stack (ELK Stack) Indices APIThe indices API from Elastic Stack (ELK Stack) — 63 operation(s) for indices.78.0Elastic Indices APIManage indices, mappings, and settings.74.2
Strong 9 Solid coverage with minor gaps
Market Data Indices APIReal-time and historical index candles and quotes.61.0Amazon Web Services Indices APIThe Indices API from Amazon Web Services — 7 operation(s) for indices.59.6Amazon IoT Core Indices APIThe Indices API from Amazon IoT Core — 7 operation(s) for indices.58.8Amazon IoT Device Management Indices APIThe Indices API from Amazon IoT Device Management — 7 operation(s) for indices.58.6Amazon Q Indices APIThe Indices API from Amazon Q — 1 operation(s) for indices.58.6Amazon IoT Device Defender Indices APIThe Indices API from Amazon IoT Device Defender — 7 operation(s) for indices.58.1EODHD Indices APIS&P/Dow Jones indices data and components57.4Bloomberg Market Data APIProvides real-time and historical market data, including stock prices, indices, commodities, and currencies.56.3VulnCheck Indices APIThe indices API from VulnCheck — 508 operation(s) for indices.55.5
Developing 6 Usable, with meaningful gaps to close
Kaiko IndicesRegulated benchmark crypto indices designed for fund administrators and ETF/ETP issuers.52.4Kaiko Indices APIIndex composition and replication data.52.4J-Quants Indices APIDaily OHLC for TOPIX and other JPX indices under /v2/indices/* endpoints, with plan-gated access (TOPIX fro...51.6Cboe Delayed Quotes APIPublic, unauthenticated JSON endpoints served from cdn.cboe.com that back the delayed-quote pages on cboe.c...49.3VTEX Indices APIThe Indices API from VTEX — 2 operation(s) for indices.47.1Finage Indices APIThe Indices API from Finage — 3 operation(s) for indices.44.2
Thin 8 Limited public surface area
iTick Market Data APIToken-authenticated REST and WebSocket API for real-time and historical financial market data across crypto...38.7Xignite Global Indices APIStock market index and benchmark values with chart bars and index metadata from the globalindices.xignite.c...38.6Forum Indices APIAttention index values and history37.8TMX Data Science API V2 (Insight API)Second-generation GET-based REST surface on insightapi.tmxanalytics.com/v2 covering broker analytics, issue...37.3Planet Processing APIRun custom processing scripts on raw bands and derive indices (NDVI, EVI, etc.) over Planet imagery without...36.9Pixxel Indices APIThe Indices API from Pixxel — 1 operation(s) for indices.36.7Goldman Sachs Index Services APIThe Index Services API provides access to the full range of Goldman Sachs indices, systematic trading strat...35.6Euronext Web Services Indices APIIndex-level data for Euronext indices delivered through the Euronext Web Services JSON API, documented in a...28.9
Emerging 2 Early or largely undocumented
EDI Index Constitution APIIndex constituent reference data via the GetReferenceNameForIndexConstituents endpoint.26.1J-Quants Indices APIThe Indices API from J-Quants — 1 operation(s) for indices.25.4

Companies reaching this through an API (20)

These companies publish an API, specification or operation carrying “Indices” but do not classify their business under it. Listed unranked and kept out of the count above, because one tagged operation is not a statement about what a company does.

Amazon IoT Core Amazon IoT Device Defender Amazon IoT Device Management Amazon Q Amazon Web Services Bloomberg Cboe Global Markets Elastic Elastic Stack EODHD Exchange Data International Forum Goldman Sachs J-Quants Pixxel Planet Labs TMX Group VTEX VulnCheck Xignite

Score breakdown

Frequency
45.5
log-scaled weighted occurrences
Breadth
0.3
spread across providers
Quality lift
55.3
mean composite of providers using it
Cohesion
0.0
strength of nearest seed neighbor

Where this tag sits

Market Data broader

Related tags

Forex 6 co-occurrences Corporate Actions 5 co-occurrences Stocks 15 co-occurrences Futures 7 co-occurrences Derivatives 9 co-occurrences Options 10 co-occurrences Historical Data 7 co-occurrences Streams 5 co-occurrences

Where this tag comes from

Api tag27
Provider tag11
Openapi tag10
Openapi op tag19

Work with this as data

Every tag here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for tags

7 MCP tools reach this
  • find_tagsBrowse and filter every tag in the catalog.
  • get_cohortThis tag as a scored cohort — every provider carrying it, with scores.
  • cohort_statsPRO — the distribution across this tag: mean, median, band split, adoption rates.
  • cohort_rankingsPRO — the leaderboard, on composite AND agent-readiness axes.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This tag 
curl "https://apis.io/api/v1/tags/indices"
All tags 
curl "https://apis.io/api/v1/tags?limit=25"
As a scored cohort 
curl "https://apis.io/api/v1/cohorts/tag/indices"
The distribution (Pro) 
curl "https://apis.io/api/v1/cohorts/tag/indices/stats" \
  -H "X-API-Key: $APIS_IO_KEY"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.