niche · 0.3 capabilitymarket resourcedomain

Stock Market

Score 17.7 / 100 18 providers 6 APIs Search apis.io →

Providers using this tag (18)

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

Exemplar 1 Complete, well-documented, and agent-ready
AlphaAIFinancial NewsSEC FilingsInsider Trading1 API66.7
Strong 1 Solid coverage with minor gaps
StockDataFinanceFinancial DataMarket Data1 API57.5
Developing 3 Usable, with meaningful gaps to close
MarketstackFinanceMarket DataEnd-of-Day Data1 API53.4한국주식데이터 (aikstockdata)South KoreaFinancial DataOpen Data1 API46.6MarketAuxNewsFinancial NewsSentiment Analysis1 API42.0
Thin 6 Limited public surface area
Nasdaq Data LinkFinancial DataMarket DataEconomic Data3 APIs36.5WebullCompanyTechnologyFinancial ServicesBrokerage3 APIs36.5StockGroCompanyFinancial ServicesInvesting1 API33.8SteadyAPIDataFinanceSocial Media2 APIs32.3MboumStocksOptionsoptions market1 API31.2brapiFinanceBrazilian Financial DataInvestment12 APIs31.1
Emerging 4 Early or largely undocumented
J-QuantsFinancial DataInvestmentJapan1 API25.4sapjilcodingAgentsA2AMCPOpen Data6 APIs23.7Motilal OswalCompanyFintechFinancial ServicesBrokerage12.2AfterHourCompanyConsumerFintechSocial Trading11.9
Minimal 3 Almost no public developer surface
SeekingAlphaCompanySocialFinanceInvesting10.7TrinkerrCompanyCloud SaasTradingAlgorithmic Trading3.6MyheroCompanyFintechTradingInvesting2.5

APIs with this tag (6)

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
AlphaAI Claude Code SkillsProvider-published open-source pack of five Claude Code agent skills wrapping the MCP tools into ready-made...66.7AlphaAI MCP ServerHosted MCP server over Streamable HTTP exposing fifteen tools for news search, ticker news, trending, actio...66.7
Thin 2 Limited public surface area
SteadyAPIREST/JSON API providing stock market, options, crypto, real estate, sports, e-commerce, social media, trave...32.3Mboum Stock & Options Data APIREST/JSON API for stock and options market data: quotes, history, options chains, unusual options activity,...31.2
Emerging 2 Early or largely undocumented
J-Quants APIThe J-Quants API (V2) is a data distribution service operated by Japan Exchange Group (JPX) that makes it e...25.4Korean Stock Market Data MCP ServerModel Context Protocol server io.github.SongT-50/korean-stock-mcp (official MCP registry, active, 1.0.0, pu...23.7

Score breakdown

Frequency
38.0
log-scaled weighted occurrences
Breadth
0.5
spread across providers
Quality lift
38.0
mean composite of providers using it
Cohesion
3.2
strength of nearest seed neighbor

Related tags

Investing 6 co-occurrences Financial Data 5 co-occurrences Market Data 9 co-occurrences Trading 5 co-occurrences Finance 5 co-occurrences Fintech 7 co-occurrences Company 7 co-occurrences

Where this tag comes from

Provider tag18
Api tag6

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/stock-market"
All tags 
curl "https://apis.io/api/v1/tags?limit=25"
As a scored cohort 
curl "https://apis.io/api/v1/cohorts/tag/stock-market"
The distribution (Pro) 
curl "https://apis.io/api/v1/cohorts/tag/stock-market/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.