established · 0.0 capabilitymarket resourcedomain

Stocks

Score 25.6 / 100 64 providers +7 via APIs 28 APIs Search apis.io →
Variants seen in the corpus: Stocksstocks

Providers using this tag (64)

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

Exemplar 3 Complete, well-documented, and agent-ready
Twelve DataMarket DataFinancial DataForex2 APIs73.3PolygonFinanceFintechMarket Data7 APIs68.3Financial Modeling PrepFinancial DataMarket DataQuotes1 API66.6
Strong 8 Solid coverage with minor gaps
Market DataMarket DataFinancial DataOptions2 APIs65.0SiftingIOFinancial market dataStocks/equitiesForexCryptocurrency1 API63.9ThetaDataFinancialMarket DataOptions1 API62.4EODHDFinancialMarket DataStock Options2 APIs61.8AlpacaFintechTradingCrypto2 APIs59.7TradierFintechTradingOptions1 API56.6IntrinioFinanceFinancial DataMarket Data1 API56.0Adanos Market Sentiment APIMarketSentimentCrypto1 API54.3
Developing 21 Usable, with meaningful gaps to close
SIXFinancialMarket DataReference Data8 APIs54.1JPX (Japan Exchange Group)FinancialMarket DataExchange8 APIs53.4Ondo FinanceCompanyCryptoTokenizationReal World Assets3 APIs52.8Alpha VantageFintechMarket DataFX1 API52.7BenzingaFinancialMarket DataNews6 APIs52.5Deutsche BörseFinancialMarket DataDerivatives12 APIs52.1Bargo Congress Trades APICongressFinanceGovernment2 APIs51.7Ally InvestBrokerageInvestingTradingFinance1 API50.3EOD Historical DataFintechMarket DataETFs1 API49.4BitpandaCompanyCryptocurrencyFintechTrading1 API48.4MorningstarFinancialMarket DataInvesting41 APIs47.8DinariCompanyTokenized SecuritiesETFs1 API47.0Trading 212InvestingFinanceTrading1 API46.4FinageFinanceMarket DataForex1 API45.8TiingoFintechMarket DataCrypto1 API45.0TradeStationBrokerageCryptocurrencyFinanceFutures1 API44.1FinnhubFinancialMarket DataForex2 APIs43.5AlgoSeekFinancialMarket DataOptions1 API42.7B3 (Brasil Bolsa Balcão)FinancialMarket DataTrading10 APIs42.0TMX GroupFinancialMarket DataExchange11 APIs39.8StockTwitsCompanyFintechSocial1 API39.5
Thin 18 Limited public surface area
EtradeBondsBrokerageFinancialFutures1 API39.2XigniteFinancialMarket DataReal-Time22 APIs39.0PublicCompanyConsumerInvestingBrokerage1 API38.4ValueRayAI/LLMETFsFinancial DataQuantitative1 API37.2StooqFintechMarket DataIndices1 API37.0Polygon.ioFintechMarket DataOptions1 API36.7FirstradeBrokerageCommission-Free TradingETFs1 API36.3DEGIROTradingBrokerageETFs1 API33.5eToroSocial TradingCopy TradingInvestingMarket Data2 APIs33.5AjaibCompanyFinancial-ServicesInvestingBrokerage1 API32.9AlpacaMarket DataTradingBrokerage1 API32.3HKEXFinancialMarket DataDerivatives4 APIs32.3LightyearCompanyFinancial-ServicesInvestingBrokerage31.1BMLL TechnologiesFinancialMarket DataOrder Book4 APIs30.5Bamboo InvestInvestmentsFractional SharesAfrica2 APIs29.9EuronextFinancialMarket DataExchange5 APIs29.9LunarCrushCompanySocial IntelligenceCryptocurrency2 APIs29.2Exchange Data InternationalFinancialMarket DataCorporate ActionsReference Data24 APIs27.0
Emerging 7 Early or largely undocumented
TradeBBtrading-journalTrade AnalyticsFintechtrading-tools1 API24.4IEX CloudFintechMarket DataReference1 API24.1QuoteMediaFinancialMarket DataOptions4 APIs22.0FutuCompanyTechnologyFintechBrokerage1 API21.3Norgate DataMarket DataFinancial DataHistorical DataFutures5 APIs17.3VestedCompanyFinancial-ServicesFintechInvesting13.6BUXCompanyFintechInvestingNeobroker13.4
Minimal 7 Almost no public developer surface
PluangCompanyConsumerFintechInvesting10.9SiamSquaredCompanyFintechInvesting9.1HODL MediaCompanyCryptocurrencyMarket Data7.4BumpedCompanyFintechFinancial-ServicesInvesting5.0Fi MoneyFintechNeobankConsumer BankingPersonal Finance5.0RUUTCompanyFinanceFintechInvesting5.0TradeKingCompanyBrokerageTradingInvesting2.6

APIs with this tag (28)

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 →

Strong 10 Solid coverage with minor gaps
Market Data Stocks APIReal-time and historical stock candles, quotes, bulk data, prices, earnings, and news.65.0SiftingIO Stocks APIUS-equity fundamentals (SEC) and historical bars.63.9GZW Data API Stocks APIThe Stocks API from GZW Data API — 4 operation(s) for stocks.62.0EODHD Fundamental Data APIProvides company fundamentals including general info, financial statements (income statement, balance sheet...61.8EODHD Intraday Historical Data APIProvides intraday historical OHLCV data at 1-minute, 5-minute, and 1-hour intervals for US stocks and other...61.8EODHD Live (Delayed) Stock Prices APIReturns live or 15-20 minute delayed stock quotes including last price, change, volume, and bid/ask data fo...61.8Alpaca Trading APIThe Alpaca Trading API enables commission-free trading of US-listed equities, options, and crypto. It expos...59.7Bloomberg Market Data APIProvides real-time and historical market data, including stock prices, indices, commodities, and currencies.59.0Tradier Brokerage APIThe Tradier Brokerage API provides REST endpoints for placing equity, option, and multileg orders, retrievi...56.6Adanos Market Sentiment APIRESTful JSON API grouping five sentiment services (Reddit Stocks, X.com Stocks, Stock News, Polymarket Stoc...54.3
Developing 5 Usable, with meaningful gaps to close
J-Quants Equities APIListed issue master, daily and morning-session OHLCV, minute bars and tick trades (add-on), earnings calend...53.4Congress Trades MCP ServerA focused Streamable HTTP MCP server exposing three read-only tools over the Congress Trades dataset — get_...51.7Cenevo Stocks APIThe Stocks API from Cenevo — 7 operation(s) for stocks.44.2Spreadshirt Stocks APIGet the available stock on the variants of the created articles.43.9Labguru Stocks APIThe Stocks API from Labguru — 7 operation(s) for stocks.41.1
Thin 7 Limited public surface area
Zalando stocks APIThe stocks API from Zalando — 1 operation(s) for stocks.39.2Xignite Global Historical APIEnd-of-day and historical equity prices including historical quote ranges, chart bars, adjustment factors, ...39.0Xignite Global Quotes APIDelayed stock quotes for equities across global exchanges, served as REST operations (GetGlobalDelayedQuote...39.0Xignite Global Real-Time APIReal-time stock quote data for global equities via REST request/response operations on the globalrealtime.x...39.0Polygon.io Stocks APIReal-time and historical US equity market data including aggregates (minute/hour/day bars), trades, NBBO qu...36.7DEGIRO product-search APIThe product-search API from DEGIRO — 1 operation(s) for product-search.33.5LunarCrush API v4REST API for LunarCrush social and market intelligence. Endpoints cover trending topics, categories, creato...29.2
Emerging 5 Early or largely undocumented
TradeBBTradeBB exposes a single publicly consumable machine-readable interface: an llms.txt file designed for LLM ...24.4IEX Cloud Core Data API (sunset)Real-time and historical US equity quotes, intraday and historical prices, OHLCV charts, news, dividends, s...24.1Norgate Data FundamentalsCompany fundamental lookups - named fundamental fields, financial summary, business summary, shares outstan...17.3Norgate Data Price and Volume DataRetrieve daily EOD open/high/low/close, volume, turnover, unadjusted close, dividends and open interest as ...17.3Norgate Data Security Metadata and ClassificationsSingle-value reference and metadata lookups for a security - name, symbol, asset id, domicile, currency, ex...17.3
Minimal 1 Almost no public developer surface
Shippingbo APIShippingbo's primary REST/JSON API for managing the full e-commerce logistics lifecycle: orders, order item...10.2

Companies reaching this through an API (7)

These companies publish an API, specification or operation carrying “Stocks” 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.

Bloomberg Cenevo GZW Data API Labguru Shippingbo Spreadshirt Zalando

Score breakdown

Frequency
55.7
log-scaled weighted occurrences
Breadth
1.8
spread across providers
Quality lift
43.9
mean composite of providers using it
Cohesion
16.2
strength of nearest seed neighbor

Related tags

Options 30 co-occurrences ETFs 15 co-occurrences Fundamentals 14 co-occurrences Indices 14 co-occurrences Corporate Actions 12 co-occurrences Market Data 49 co-occurrences Futures 14 co-occurrences Forex 11 co-occurrences

Where this tag comes from

Provider tag64
Api tag28
Openapi tag7
Openapi op tag50

Cohort brief

Auto-generated

The 63 providers in the APIs.io catalog tagged Stocks, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers
63
all scored
Mean Kin Score
39.2
+15.3 vs catalog 23.9
Mean Agent Readiness
24.6
+12.6 vs catalog 12
Spread
2.6–73.3
median 39.5 · σ 17
How the 63 split by band
Exemplar 3Strong 8Developing 21Thin 18Emerging 7Minimal 6
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Developer Ergonomics 43.8 23.4 +20.4 63
Access Clarity 42 26.5 +15.5 63
Contract Quality 35 19.8 +15.2 63
Operational Transparency 28 14 +14 63
Discoverability 70.1 61.2 +8.9 63
Contract Governance 10.5 6.4 +4.1 63

A facet is averaged over the members that carry it, not over the whole cohort — the “Scored” column is that count. Averaging an absent facet as zero would score our own coverage gaps as the providers’ posture.

What this cohort publishes
ArtifactThis cohortCatalogDifference
MCP server (any) 29% 10% +19
MCP server (first-party) 33% 13% +20
Agent Skills 0% 0% 0
OAuth scopes 21% 11% +10
Security 97% 97% 0
Arazzo workflows 3% 2% +1
Governance rules 30% 14% +16

mcp_pct counts any mcp/ artifact including ones API Evangelist derived from the provider OpenAPI; mcp_first_party_pct counts only servers the provider publishes. Prefer the latter.

Top by Kin Score
  1. 1 Twelve Data 73.3
  2. 2 Polygon 68.3
  3. 3 Financial Modeling Prep 66.6
  4. 4 Market Data 65
  5. 5 SiftingIO 63.9
  6. 6 ThetaData 62.4
  7. 7 EODHD 61.8
  8. 8 Alpaca 59.7
  9. 9 Tradier 56.6
  10. 10 Intrinio 56
Top by Agent Readiness
  1. 1 Polygon 63.1
  2. 2 EODHD 62.3
  3. 3 Alpha Vantage 61.9
  4. 4 Twelve Data 58.4
  5. 5 Alpaca 58.2
  6. 6 Morningstar 56.8
  7. 7 Intrinio 46.8
  8. 8 Tradier 45.1
  9. 9 Bargo Congress Trades API 44.8
  10. 10 SIX 44
All 64 members of this roster resolve to a scored provider in the catalog.Generated from the catalog build of 15 September 2026, across 27661 providers, using the same computation served by the APIs.io cohort API. Briefs are published for rosters of 5 or more scored providers; below that a distribution is not meaningful.

Work with this as data

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

MCP server

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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

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

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