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 11 Complete, well-documented, and agent-ready

Uphold Public API (v0)The long-standing public Uphold API at api.uphold.com/v0 — tickers and exchange rates, supported currencies...81.5 EventTrader MCP ServerHosted Streamable-HTTP MCP endpoint at https://cymetica.com/mcp/v1 (protocol 2025-03-26) answering anonymou...72.6 AlphaAI Claude Code SkillsProvider-published open-source pack of five Claude Code agent skills wrapping the MCP tools into ready-made...72.2 AlphaAI MCP ServerHosted MCP server over Streamable HTTP exposing fifteen tools for news search, ticker news, trending, actio...72.2 Revolut Market Data APIRetrieve real-time and historical market data for Revolut X.69.6 Gemini MCP ServerThe official first-party Model Context Protocol server from the gemini/developer-platform monorepo, exposin...68.6 Gemini Trust Company Market Data APIThe Market Data API from Gemini Trust Company — 15 operation(s) for market data.68.6 Gemini WebSocket APIThe production Gemini WebSocket API at wss://ws.gemini.com: request/response methods, market data streams (...68.6 Twelve Data Market Data APIThe market_data API from Twelve Data — 6 operation(s) for market_data.66.9 Twelve Data WebSocket Streaming APIReal-time price streaming over a persistent, bidirectional WebSocket at wss://ws.twelvedata.com/v1/quotes/p...66.9 Lev Market Data APIThe Market Data API from Lev — 2 operation(s) for market data.66.6

Strong 49 Solid coverage with minor gaps

Crypto.com Exchange WebSocket API v1WebSocket API for the Crypto.com Exchange, split into a Market Data stream (public channels for book, ticke...66.0 TradingView Market Data APIThe Market Data API from TradingView — 4 operation(s) for market data.65.0 ByKaranteli Public APIThe Public API from ByKaranteli — 68 operation(s) for public.63.5 Braiins Market data APIPublic statistics, order-book snapshots, trades, and OHLCV bars.63.2 Dinari Market Data API**Dinari provides basic market data for `Stocks` and `Alloys` that are available to transact on.** This dat...63.1 Kraken Futures WebSocket APIReal-time market data and private user feeds for Kraken Futures over WebSocket. Public feeds include trade,...63.1 Kraken Market Data APIPublic market data (no authentication required)63.1 Kraken Spot WebSocket API v2Real-time market data and private user data over WebSocket v2 using subscribe/unsubscribe semantics. Public...63.1 Bullish Aggregator APIA small non-authenticated REST surface publishing aggregated public market data — tickers with 24-hour roll...62.7 Bullish Market Data APINon-authenticated APIs for accessing general market data information62.7 Bullish WebSocket Anonymous Ticks APIAsyncAPI 3.0.0 document for simultaneous tick subscriptions across multiple Bullish markets over WebSocket.62.7 Bullish WebSocket Anonymous Trades APIAsyncAPI 3.0.0 document for batched anonymous trade subscriptions across multiple Bullish markets over WebS...62.7 Bullish WebSocket Auction Feed APIAsyncAPI 3.0.0 document for the real-time auction feed, delivering phase and order-imbalance data for Bulli...62.7 Bullish WebSocket Index Data APIAsyncAPI 3.0.0 document for streaming Bullish index prices, with the subscribed asset set controlled by sub...62.7 Bullish WebSocket Multi-Order Book APIAsyncAPI 3.0.0 document for simultaneous subscriptions to multiple L1 and L2 order books across different B...62.7 RealMarketAPI Market Data APIThe Market Data API from RealMarketAPI — 2 operation(s) for market data.61.4 Zero Hash Market Data APIMarket Data Services61.4 zerohash Private WebSocket APIAuthenticated WebSocket feed delivering a full account-balance snapshot on subscribe followed by incrementa...61.4 EODHD Market Data APIMarket capitalization and other market data60.7 tickfeed-pro market data APIThe market data API from tickfeed-pro — 6 operation(s) for market data.59.9 Cledara SaaS Market Data HubCledara's public SaaS and AI market dataset — market share, adoption, rank movement and spend benchmarks ac...59.4 RavenPack Market Data APIMarket data endpoints including intraday prices, daily prices, price changes, and real-time quotes59.0 Lukka Market Data Streaming APIWebSocket streaming for executed trades, Level-1 order-book quotes, Lukka Prime pricing, Lukka Index valuat...58.8 MAX Exchange WebSocket APIReal-time streaming service for MAX Exchange. Public channels cover order book (book), trade, ticker, kline...58.6 cryptodataapi-com Market Data APISpot klines, tickers, prices, and exchange info.58.5 Polygon.io Crypto APIAggregates, trades, snapshots, level-2 books, and L2 streaming for crypto pairs across major exchanges.58.3 Polygon.io Forex APIReal-time and historical FX prices for 1,000+ currency pairs via REST and WebSocket.58.3 Polygon.io Futures APIReal-time and historical futures market data including aggregates, trades, quotes, and snapshots.58.3 Polygon.io Indices APIReal-time and historical index values for major US and global indices via REST and WebSocket.58.3 Polygon.io Options APIOPRA-licensed options market data via REST and WebSocket: aggregates, trades, quotes, snapshots, contract r...58.3 Polygon.io Stocks APIReal-time and historical US equity market data including aggregates (minute/hour/day bars), trades, NBBO qu...58.3 Daloopa Market Data APIThe Market Data API from Daloopa — 2 operation(s) for market data.57.9 EVEDEX Async API (Centrifugo)Real-time exchange events over WebSocket, brokered by Centrifugo with JWT channel access rights and epoch-b...57.5 EVEDEX Documentation & Agent SurfaceThe GitBook developer portal and agent-native documentation surface. Every page is retrievable as markdown ...57.5 level2 Market Data APIEndpoints for retrieving historical OHLC price data for financial instruments across global exchanges.57.3 Codex GraphQL APICodex is Defined's unified GraphQL API for real-time blockchain data: token prices, OHLCV bars, trades, liq...57.2 Coinbase Data APIThe Coinbase Data API provides developers with access to cryptocurrency market data, blockchain analytics, ...57.2 Infoway Financial Data MCP ServerOfficial Model Context Protocol server (PyPI infoway-mcp-server) exposing 17 tools over stdio for real-time...57.0 Infoway WebSocket Streaming APIPersistent WebSocket connection for real-time trades, order-book depth, candlesticks and multilingual news....57.0 fxapis-com Market data APIPrices from each account's own broker, read live from its terminal. Each broker quotes differently, and the...56.6 Blockdaemon Token Pricing APIToken metadata, tag, and pricing API — name, symbol, decimals, logo URI, and category tags (e.g., stablecoi...56.5 Gloom Market Data APIMarket prices and company fundamentals55.7 Bloomberg BLPAPI (Desktop API)BLPAPI is Bloomberg's core programming interface for the Bloomberg Terminal Desktop API, Server API (SAPI),...55.4 Bloomberg BLPAPI CoreThe Bloomberg Open API (BLPAPI) Core — the foundational service-oriented, socket-based API used by the Desk...55.4 Bloomberg Market Data APIProvides real-time and historical market data, including stock prices, indices, commodities, and currencies.55.4 Bloomberg Server API (SAPI)Delivers real-time market data, historical data, reference data, and calculation engine capabilities from t...55.4 Qfex Market Data APIThe market-data API from Qfex — 9 operation(s) for market-data.54.8 QFEX Market Data WebSocket (MDS)Multiplexed WebSocket gateway for all QFEX real-time market data streams: order book, trades, candles, BBO,...54.8 Benzinga Market Data APIThe Market Data API from Benzinga — 3 operation(s) for market data.54.4

Developing 94 Usable, with meaningful gaps to close

Factiva Market Data APIRetrieves real-time quotes, delayed quotes, and time series market data for US, Canadian, and global compan...53.9 Intrinio Web API v2Intrinio's REST API for financial data — stock prices, options, fundamentals, estimates, ETFs, indices, cor...53.5 GriffNode API APIAccept Bitcoin, Litecoin, Dogecoin, Dash, Ethereum and ERC-20 tokens. Server-to-server, authenticated with ...53.4 SIX Web APISingle API onto the SIX financial data universe - real-time, intraday, end-of-day, and historical pricing a...53.4 Eikon Data APIPython and R library that allows programmatic access to Refinitiv Eikon data. Provides access to instrument...53.3 LSEG Tick History REST APIREST API providing programmatic access to historical tick-level market data through the DataScope Select pl...53.3 LSEG WebSocket APIStandards-based WebSocket API for real-time pricing streaming using JSON message formats. Connects to Real-...53.3 Refinitiv Knowledge Direct APIWeb services API integrating financial market data, news, and analytics into websites, trading platforms, a...53.3 roic-ai Market Data APIHistorical and current market data resources.53.2 Cision Web Solutions Public APIPublic data API behind Cision Web Solutions, Cision's embeddable investor relations and online newsroom mod...53.1 A7 Analytics Platform - CME Market Data API (MDP)Historical CME Group market data from the MDP feed served through the A7 Analytics Platform REST API.52.9 A7 Analytics Platform - Market Data API (EOBI)Un-normalized, genuine historical order-by-order market data from the T7 Enhanced Order Book Interface (EOB...52.9 A7 Analytics Platform - Market Data Insights APIOff-the-shelf market data insights and analytics derived from A7 granular historical order book data.52.9 Deutsche Börse Cloud Stream Market Data APICloud-delivered real-time market data streaming over WebSocket (host md.deutsche-boerse.com) with Protocol ...52.9 Ondo Finance Market Data APIThe Market Data API from Ondo Finance — 9 operation(s) for market data.52.4 Kaiko REST APIREST endpoints for trades, order books, OHLCV, market reference, trade flows, FX rates, and derivatives acr...52.1 Blockchain Data APIFree JSON API over the Blockchain.com Explorer data set — single blocks, transactions, addresses, unspent o...51.9 Blockchain.com Charts and Statistics APIJSON/CSV feed behind the Blockchain.com charts and stats pages — per-chart time series, network statistics,...51.9 Blockchain.com Exchange Rates APITicker and currency-conversion API returning bitcoin exchange rates across major fiat currencies, aggregate...51.9 Blockchain.com Market Data APIBitcoin exchange rates and fiat conversion.51.9 Blockchain.com NFT Market APIPublic backend service for NFT market data, returning NFT assets owned by an address and individual asset l...51.9 ChatHome Market data APILuxembourg commune and national market intelligence.51.4 Morningstar Market Data Web Services APIOn-demand access to Morningstar's financial market data over HTTP in XML and JSON - real-time, delayed, and...51.2 Morningstar Snapshot APIOn-demand Level 1 market data snapshots over HTTPS with OAuth 2.0, documented publicly through Morningstar'...51.2 Ostium Builder APIPublic Builder API and TypeScript/Python SDK surface for reading Ostium market data (pairs, prices, OHLC ca...51.2 Xpansiv Data APIReal-time, end-of-day and historical transaction-based market data for environmental and energy commodities...51.1 Xpansiv Marketplace FIX APIThe Xpansiv Marketplace Server API for retrieving real-time market data and executing and managing orders o...51.1 TAAPI.IO Market Data APIRaw OHLCV (Open, High, Low, Close, Volume) candle data from supported exchanges and markets.50.9 Bloomberg Data APIProvides programmatic access to Bloomberg's financial market data including real-time and historical pricin...50.7 Databento Batch APISubmits asynchronous batch jobs that materialize large historical requests into downloadable flat files (DB...50.7 Databento Live Streaming APILow-latency live market data delivered over a raw TCP binary streaming protocol using Databento Binary Enco...50.7 Databento Metadata APIDiscovery and cost-estimation endpoints for the historical catalog. List publishers, datasets, schemas, and...50.7 Databento Reference APIReference and non-price data that complements the market data feeds - a security master (instrument definit...50.7 Databento Symbology APIResolves symbols between Databento's symbology systems - raw symbol, instrument ID, parent, and continuous ...50.7 Sygnum Market Data APIMarket data service exposed as REST plus a streaming WebSocket channel, so partners can stream prices and m...50.4 DegenHedge market data APIThe market data API from DegenHedge — 1 operation(s) for market data.50.1 Binance.US REST APIThe Binance.US REST API is the primary programmatic interface to the exchange. It exposes general system an...49.9 Binance.US WebSocket StreamsBinance.US WebSocket Streams deliver real-time market data and account events over persistent WebSocket con...49.9 Paxos Market Data APIMarket data provides various parameters of the order book and historical order data.49.9 Supra Price Feeds REST APIOracle market-data REST API returning the latest price for a trading pair and historical OHLC candles for u...49.8 Supra Price Feeds WebSocket APIStreaming oracle market-data API. Clients open a WebSocket to wss://prod-kline-ws.supra.com with an x-api-k...49.8 tZERO FIX APIFIX 4.2 / 4.4 protocol surface for low-latency order entry, drop-copy execution reports, market data (snaps...48.9 Moment Market Data APIThe Market Data API from Moment — 4 operation(s) for market data.47.7 PJM Data Miner 2 APIPJM's public wholesale market and system data catalogue, exposed as a REST API behind Azure API Management....47.6 IESO Public Reports RepositoryThe IESO's open market and system data surface. A flat HTTPS file repository publishing 139 report director...47.5 Mudrex Market Data APIPublic, unauthenticated market-data surface for Mudrex linear perpetual futures. Over REST it returns bulk ...47.4 BTC War Live Market Data API Market data APISourced and timestamped Binance Spot observations.47.2 CEX.IO Market Data APIThe Market Data API from CEX.IO — 4 operation(s) for market data.47.2 SPP Portal Public Data File Browser APIThe HTTP download service behind the SPP Portal public data pages. Anonymous GET requests of the form /file...47.0 SPP Price Contour Map ArcGIS REST ServicesAn Esri ArcGIS Server REST directory serving the geospatial layers behind SPP's price contour map. Confirme...47.0 SPP Public Data FTPSPP's officially documented programmatic interface to its public data. The SPP Public Data Access guide (v3...47.0 Tradier Brokerage APIThe Tradier Brokerage API provides REST endpoints for placing equity, option, and multileg orders, retrievi...47.0 Tradier Market Data APIThe Market Data API from Tradier — 7 operation(s) for market data.47.0 Tradier MCP ServerTradier's official hosted MCP server (launched July 2026) connects AI assistants like ChatGPT, Claude, Gemi...47.0 Tradier Streaming APIThe Tradier Streaming API delivers real-time market and account events over HTTP and WebSocket. Quote, trad...47.0 Cboe Delayed Quotes APIPublic, unauthenticated JSON endpoints served from cdn.cboe.com that back the delayed-quote pages on cboe.c...46.9 Cboe LiveVol All Access APIThe Cboe LiveVol All Access API is a REST API suite offering quote and trade details for equities and optio...46.9 Bloomberg Server API (SAPI)Server API delivers real-time market data, historical data, premium reference data, and calculation tools f...46.1 Bitpanda Market Data APILive ticker prices46.0 dxFeed dxLink WebSocket APIdxLink is dxFeed's WebSocket protocol for real-time market data streaming with multiplexed virtual channels...45.8 dxFeed FIX APIIndustry-standard FIX protocol access to dxFeed market data for trading systems. Session endpoints and cred...45.8 dxFeed REST Web Service APIREST service over the core dxFeed API with /events (snapshot), /eventSource (Server-Sent Events stream), /a...45.8 HTX Spot REST APIThe HTX Spot REST API provides HTTP access to reference data (system status, symbols, currencies, chains), ...44.5 HTX WebSocket APIThe HTX WebSocket API provides a two-way real-time channel for subscribing to market data (klines, market d...44.5 ICE Consolidated Feed APIThe ICE Consolidated Feed API provides developers with access to ICE Data Services real-time and delayed ma...44.4 ICE Data Services APIThe ICE Data Services API provides access to market data, reference data, and analytics from Intercontinent...44.4 Asrai Market Data APIThe Market Data API from Asrai — 12 operation(s) for market data.43.5 Refinitiv Real-Time WebSocket APILow-latency streaming API for real-time market data using WebSocket connections. It supports the Open Messa...43.3 Arkham Market Data APIThe Market Data API from Arkham — 1 operation(s) for market data.43.2 Bullet Market-Data APIThe Market-Data API from Bullet — 11 operation(s) for market-data.43.0 Legend WebSocket APILegend's Hyperliquid-compatible WebSocket at wss://api.legend.trade/ws, using subscription-based messaging....42.4 LegendTrade Market Data APILegend-specific market data extensions.42.4 Robinhood Market Data APIBest bid/ask quotes and estimated execution prices.42.0 Adona Market Data APICandle history and live market data for foreign exchange (FX) and precious metals, with one‑second OHLC can...41.9 Caplight MCP ServerHosted, remote MCP server that connects Claude.ai and Claude Desktop to the Caplight dataset. Caplight docu...41.8 Ally Invest Market Data APIThe Ally Invest Market Data API provides access to real-time and delayed market data including equity and o...41.2 Ally Invest Streaming Market Data APIThe Ally Invest Streaming API delivers real-time market quotes via a persistent HTTP streaming connection. ...41.2 tastytrade DXLink Market Data Streaming APIReal-time market data streaming via DXLink, a WebSocket-based protocol backed by dxFeed. Clients fetch a qu...41.0 Independent Reserve WebSockets APIWebSockets feed for order book and ticker data, documented with samples in the independentreserve/websocket...40.9 Coinbase Commerce Market Data APIThe Market Data API from Coinbase Commerce — 30 operation(s) for market data.40.8 Pintu Pro Partner APIPintu Pro's institutional/partner trading API. A unified message format is used over both an HTTP endpoint ...40.7 cvforge Data APIPlain HTTPS + JSON API behind cvforge apps, serving options chains, screener, SQL queries, historical bars ...40.6 cvforge MCP ServerStreamable HTTP MCP server (JSON-RPC 2.0, one POST per request, protocol version 2024-11-05) on the cvforge...40.6 Nasdaq Cloud Data Service (NCDS) REST APIRequest-based REST API for real-time and delayed Nasdaq, BX, PSX and CQT equities (last sale, last trade, l...40.3 Nasdaq Cloud Data Service (NCDS) — Kafka StreamsReal-time Nasdaq market data delivered over Apache Kafka (TLS) with SASL/OAUTHBEARER authentication against...40.3 Nasdaq Data Link Bulk Download APIAsynchronous bulk download of Nasdaq Data Link tables: GET /api/v1/bulkdownloads/{datatable_code} with row ...40.3 Nasdaq Data Link Tables APIREST access to Nasdaq Data Link tabular datasets: GET /api/v3/datatables/{datatable_code}.{format} with row...40.3 Oddpool APIREST API for prediction market data across Kalshi and Polymarket: full-text search over markets, events, an...40.2 FinancialData.Net MCP ServerHosted MCP server mapping the entire REST API documentation into callable MCP tools (e.g., getStockSymbols,...39.8 FinancialData.Net REST APIREST API for financial and market data covering equities, ETFs, crypto, forex, derivatives, fundamentals, f...39.8 BigONE Market Data APIPublic Market Data39.3 BigONE WebSocket APIReal-time spot market data and private order/account streams at wss://api.big.one/ws/v2 (JSON or protobuf m...39.3 Bloomberg Buyside Enterprise Solutions Market Data APIReal-time and delayed market data snapshots39.3 Bloomberg Data APIProgrammatic access to Bloomberg's financial data including reference data, historical pricing, corporate a...39.3

Thin 118 Limited public surface area

Binance Market Data APIPublic market data endpoints for COIN-M futures.38.9 Binance Spot WebSocket APIThe Binance Spot WebSocket API provides an alternative way to access spot trading functionality through per...38.9 Binance Spot WebSocket StreamsBinance Spot WebSocket Streams deliver real-time market data updates via persistent WebSocket connections. ...38.9 Bitnomial Exchange REST APIPublic HTTPS REST API for the Bitnomial exchange — products and contract specs, orders, fills, block trades...38.9 Bitnomial Market Data WebSocket APIReal-time WebSocket market-data feed delivering trade, order book, block trade, and market status messages ...38.9 Sequence Markets Trading APIBearer-auth REST API and multiplexed WebSocket streaming surface for the Sequence Markets trading OS — cred...38.9 Forum Market Data APIOrder books, tickers, trades, and candles38.8 Real-Time Futures and Options Data APIReal-time market data API delivering futures and options price, volume, and open-interest information acros...38.7 B3 Market Data Feed (UMDF)B3's real-time market data distribution over the Unified Market Data Feed (UMDF) - event-based bid, ask, tr...38.4 QUODD Batch Snaps APIBatch snapshot retrieval for many tickers in a single request, via GET (query list) or POST (ticker array)....38.4 QUODD Cloud Streaming APICloud Streaming pushes changing quote and trade fields continuously rather than requiring repeated REST pol...38.4 QUODD Historical Prices APIEnd-of-day and historical market data across 80-plus global exchanges - US equities and ETFs from 1994, glo...38.4 QUODD Options Snaps APIReal-time or delayed options pricing snapshots for single contracts (Options Snap) and for many contracts a...38.4 QUODD Snap APISingle-ticker real-time or delayed pricing snapshot (Snap). Returns the current quote and trade fields - la...38.4 QUODD Snap gRPC APIgRPC delivery of pricing snapshots (Snap) and ticker information (Ticker Info) for high-performance, low-ov...38.4 iTick Market Data APIToken-authenticated REST and WebSocket API for real-time and historical financial market data across crypto...38.3 Deribit Market Data APIThe Market Data API from Deribit — 31 operation(s) for market data.38.1 Rho Protocol Market Data APIThe Market Data API from Rho Protocol — 7 operation(s) for market data.38.1 Public Trading APIREST API for programmatic trading on Public — manage brokerage accounts, pull portfolio and transaction his...37.9 Korbit Open API v2 WebSocketWebSocket streaming API for the Korbit exchange. Public channels stream ticker, orderbook and trade market ...37.4 PowerTrade REST APIPublic and private REST endpoints for market-data summaries, public trade history, positions, holdings, bal...37.4 PowerTrade WebSocket FeedsReal-time WebSocket market-data feeds (reference data, top-of-book, order books, trades, index and settleme...37.4 EquipmentWatch Market Data APIRaw equipment sales activity (auction and resale transactions) and market-derived utilization and popularit...37.2 evidinvest-com Market Data APIThe Market Data API from evidinvest-com — 5 operation(s) for market data.37.2 TradeStation Market Data APIAccess real-time and historical market data including quotes, bar charts, symbol information, symbol lists,...37.1 TradeStation Streaming APIThe TradeStation Streaming API provides real-time HTTP streaming endpoints using chunked transfer encoding ...37.1 Coil Market Data APIPaid per-read slices of the scored board — regime, buy list, per-name and per-sector reads, crypto. USDC ov...37.0 Liquid Co-Invest MCPCo-Invest is Liquid delivered as a remote Model Context Protocol (MCP) server. Once connected, an MCP clien...36.8 CAISO OASIS Download APIThe Open Access Same-time Information System (OASIS) Download API — CAISO's public wholesale market data in...36.6 CAISO Today's Outlook Data FeedsThe CSV feeds behind CAISO's public Today's Outlook dashboard. Anonymous GET requests to https://www.caiso....36.6 vibesprings-net Market Data APIThe Market Data API from vibesprings-net — 1 operation(s) for market data.36.6 Bloomberg Data APIThe Bloomberg Open API (BLPAPI) provides programmatic access to Bloomberg's market data, reference data, hi...36.5 Upbit WebSocket APIThe Upbit WebSocket API delivers real-time streaming data for market and account events. Public streams inc...36.4 Nasdaq Data Link REST API for Real-Time or Delayed DataREST API (Nasdaq Cloud Data Service) for real-time or delayed exchange data — Nasdaq Basic, Last Sale+, BBO...36.2 Nasdaq Data Link Streaming APIStreaming API (Nasdaq Cloud Data Service) for real-time products — Nasdaq Basic, Last Sale+, TotalView, Con...36.2 Nasdaq Data Link Tables APIREST API for tables data (datatables) — row and column filtered access to hundreds of financial, economic, ...36.2 Webull Market Data APIReal-time and historical market data — snapshots, tick data, quotes/depth, footprint, and OHLCV bars for st...36.2 BitOasis Market Data APIPublic market data endpoints (no authentication required).35.7 IntelligentCross IQX Market Data FeedIQX is the IntelligentCross proprietary market data feed. It disseminates all visible ASPEN resting orders,...35.2 LATOKEN Public WebSocket APISTOMP-over-WebSocket API at wss://api.latoken.com/stomp with public market-data and private account topics....34.8 MetaDAO Market data APIDaily volume and fee history from the served ETL.34.8 Goldman Sachs Data Services APIThe Data Services API integrates Goldman Sachs data and insights into client tools and processes, exposing ...34.3 Bloomberg Market Data APIProvides access to real-time and historical market data including stocks, bonds, commodities, and currencie...33.7 SynFutures Market Data APIOn-chain market config, symbols, prices, and corporate actions33.7 Bitvavo Market data APIGet the latest information about markets, trades, and candles on Bitvavo.33.6 Bitvavo Market Data Pro WebSocket APIMarket Data Pro WebSocket API published by Bitvavo.33.6 Bitvavo WebSocket APIReal-time WebSocket API for market data, trading, transfers, and account management on Bitvavo.33.6 Bitstamp Market Data APIPublic market data endpoints (no authentication required)33.5 Bitstamp WebSocket APIReal-time WebSocket API providing live market data streams including order book updates, live trades, ticke...33.5 Bloomberg Data License APIBatch and per-security delivery of Bloomberg's reference, pricing, regulatory and alternative data for inte...33.5 Bloomberg SAPI (Server API)The shared-server deployment of BLPAPI, providing real-time subscription and historical request/response ma...33.5 ASX Market Information Application (MIA) REST APIREST programmatic interface to ASX Online's Market Information Application (Information Services), letting ...33.4 Uniblock Market Data APIEndpoints for real-time and historical market data including token prices, market capitalization, trading v...33.3 EDX Markets FIX API (Order Entry & Market Data)The EDX Markets institutional trading interface, delivered over the FIX protocol: FIX 5.0 SP2 order entry a...33.2 Circana Complete Beauty APIComplete Beauty offers a holistic view of the beauty industry combining mass and prestige POS data for manu...33.1 Circana Market Data APIAccess point-of-sale and market measurement data33.1 OneTick Cloud REST API (WebAPI)HTTPS REST access to OneTick Cloud market data and analytics queries, authenticated with an OAuth2 client-c...32.8 OneTick Python API - Directed GraphThe lower-level directed-graph-style Python query API for OneTick, composing event-processor graphs against...32.8 OneTick Python API - onetick-py (pandas-style)A pandas-like Python API for querying tick-by-tick market data in OneTick, published on PyPI as onetick-py ...32.8 OneTick SQL APISQL querying over OneTick tick and reference data, documented openly and runnable against OneTick Cloud (in...32.8 Iress Web Services V4Iress Web Services V4 is a SOAP XML document/literal web service used to access IRESS market data and Web A...32.7 MIAXdx Market Data and Account APIPublic and authenticated REST API on api.ledgerx.com covering exchange contracts, traded contracts, contrac...32.5 Cryptomus Exchange and Market Data APIREST and WebSocket API for accessing real-time cryptocurrency exchange rates, order books, tickers, trade h...32.2 Nasdaq Cloud Data Service (NCDS) Streaming APINasdaq Cloud Data Service (NCDS) provides streaming and REST APIs for real-time and delayed market data del...32.1 Nasdaq Data Link Tables REST APINasdaq Data Link Tables API provides access to tabular financial datasets including equity fundamentals, op...32.1 MEXC Spot WebSocket StreamsThe MEXC Spot WebSocket Streams deliver real-time market data and user account updates via persistent WebSo...32.0 SimCorp Dimension Streaming APIReal-time streaming API for delivering live investment data, market updates and event-driven notifications ...32.0 Bloomberg B-PIPE APIReal-time streaming market data API delivering quotes, trades, and market depth.31.9 Bloomberg Data License APIProvides access to Bloomberg's extensive financial data including real-time quotes, historical data, refere...31.9 LBank Market Data APIPublic market data endpoints for ticker, depth, trades, and K-line data31.8 LBank WebSocket Market Data APIReal-time WebSocket API for streaming live market data from LBank. Clients can subscribe to K-line (candles...31.8 SteadyAPIREST/JSON API providing stock market, options, crypto, real estate, sports, e-commerce, social media, trave...31.7 BMLL Market Data APIRetrieve per-instrument market state and consolidated best bid and offer (CBBO) for listings on a given day...31.4 StoneX GF Futures APIThe StoneX GF (GAIN Futures) API provides institutional-grade access to futures trading including market da...31.4 Euronext Web Services Market Data APIOn-demand real-time, delayed, and reference market data over HTTP in JSON (REST) covering equities, fixed i...31.2 Phemex Market Data APIThe Market Data API from Phemex — 12 operation(s) for market data.31.2 Capital.com WebSocket APIThe Capital.com WebSocket API streams real-time market data, supporting up to 40 concurrent instruments and...31.1 FCA Data Publication API (FIRDS / FITRS)Anonymous machine-to-machine query interface over the file artefacts the FCA publishes through data.fca.org...30.9 HKEX Orion Market Data Platform - Derivatives Market (OMD-D)Real-time datafeeds (OMD-D DS, DP, DF tiers) for futures and options traded on the Hong Kong Futures Exchan...30.8 HKEX Orion Market Data Platform - Securities Market (OMD-C)Real-time datafeeds (OMD-C SS, SP, SF tiers) for all securities traded on the Stock Exchange of Hong Kong, ...30.8 Hyperliquid REST APIPublic REST API for the Hyperliquid exchange. Read endpoints expose market metadata, order books, candles, ...30.8 GRVT Market Data APIPublic market-data API for GRVT — instruments, currencies, supported assets, margin rules, mini/full ticker...30.4 Reflexivity APIReflexivity's institutional REST API. Documented by the company as "JSON REST based services" whose request...30.4 Mboum Stock & Options Data APIREST/JSON API for stock and options market data: quotes, history, options chains, unusual options activity,...30.2 ACTIV Web One API (AtlasFeed)WebSocket-based (WebAssembly) JavaScript/TypeScript market data API for browser and Node.js, installed as n...30.0 Interactive Brokers Market Data APIReal-time and historical market data30.0 Nasdaq Private Market Tape D APITape D is NPM's private-company pricing and valuation dataset — real-time private market pricing integratin...29.8 CMG DataLab Real-Time Feed (GraphQL API)Schema-driven GraphQL access to CMG's live and historical ECM dataset. Per CMG's published FAQ the feed let...29.5 WazirX Market Data APIPublic market data endpoints for price, volume, and order book information29.5 WazirX WebSocket APIEndpoints for WebSocket authentication token generation29.5 Bloomberg Data License APIProvides programmatic access to Bloomberg's comprehensive financial data including pricing, reference data,...29.4 Bloomberg SAPI (Server API)Server-side API delivering the same real-time market data, historical data, premium reference data, and cal...29.4 Optimal Blue Business Intelligence APIsData tools including 16 Mortgage Market Rate Indices, integrable into dashboards. Successor to Black Knight...29.4 eToro Market Data APIThe Market Data API from eToro — 8 operation(s) for market data.29.1 eToro Market Data APIProvides REST and WebSocket access to real-time and historical market data for all asset classes available ...29.1 eToro Price Alerts APIProvides REST endpoints for creating, listing, and deleting price threshold alerts on eToro instruments. En...29.1 Moralis Market Data APIThe Market Data API from Moralis — 6 operation(s) for market data.29.0 Kalshi WebSocket Streaming APIReal-time streaming feed for market data, order book updates, fills, and portfolio events on Kalshi. Docume...28.9 1Forge Forex StreamWebSocket stream that delivers real-time bid/ask updates for subscribed forex and cryptocurrency pairs. Str...28.7 Betfair Exchange Stream APILow-latency, subscription-based push of market and order changes over a persistent raw SSL/TCP socket to st...28.5 Sense Street WebSocket APIReal-time streaming access to quotes and market activity extracted from broker conversations across multipl...28.5 OKX Market Data APIPublic REST and WebSocket endpoints delivering real-time and historical market data including order books, ...28.2 AirDNA Market Data APIMarket and submarket discovery, metrics, and future pricing.28.1 CoreLogic Australia Auction APIAustralian auction results and clearance rates — the weekly number the Australian property press runs on. P...27.7 CoreLogic Australia Charts APIServer-rendered PNG chart images for market trends and census data, driven by location, property-type and m...27.7 CoreLogic Australia Statistics APISuburb, locality and region statistics plus ABS census summaries, driven by location and location-type iden...27.7 E*TRADE from Morgan Stanley - Market Data APIThe E*TRADE from Morgan Stanley Market Data API is the market-data module of the public E*TRADE V1 REST pla...27.7 Hydromancer REST APIHyperliquid data REST API using a single POST /info operation dispatcher (type field selects the operation)...27.6 Hydromancer WebSocket APIReal-time WebSocket streams for Hypercore events, orderbooks (L2/L4), trades, and account updates. API key ...27.6 Bitso WebSocket APIReal-time streaming channels for trades, order-book diffs, and full order-book snapshots. Used by trading c...27.3 Bitrue Spot APIREST API for Bitrue spot trading -- market data (depth, trades, klines, tickers), exchange info, account, o...27.1 CoinNudge Data APIREST HTTP API returning JSON/CSV for crypto market datasets. Includes a free Research scope (no paid key re...27.1 LunarCrush API v4REST API for LunarCrush social and market intelligence. Endpoints cover trending topics, categories, creato...27.1 Notice APIRESTful enterprise API for real-time private market data across 6,000+ companies - Notice Price, verified t...27.0 Aevo Exchange WebSocket APIReal-time WebSocket API for Aevo exchange providing low-latency streams for orderbook updates, trade feeds,...26.9 Ribbon Finance Market Data APIPublic market data endpoints26.9 Jupiter Price APIUSD pricing for up to 50 Solana tokens per request, sourced from on-chain aggregated liquidity. Used for po...26.4 DEGIRO Quotecast APIReal-time market data streaming service providing live ticker subscriptions for price, volume, bid/ask, and...26.2

Emerging 59 Early or largely undocumented

aWATTar Market Data APIEPEX Spot electricity market price data26.0 Bitwise APIBitwise index, ETF, and fund data API — crypto asset prices, index values, and index methodologies. Authent...25.9 Messari REST APIComprehensive REST API exposing /v1, /v2 endpoints for asset metrics (price, market cap, ROI, mining stats,...25.8 Simudyne Pulse Synthetic Market Data APIREST API and Python SDK for tick-level synthetic market data — L1 quotes, L2 order book depth, trades, and ...25.7 Bithumb Market Data APIPublic spot market data endpoints25.6 Bithumb WebSocket APIReal-time WebSocket API for streaming market data including tickers, order books, and trade executions, as ...25.6 GMX Integration APICoinGecko-compatible trading pairs API for GMX markets on Arbitrum and Avalanche, returning ticker IDs, bas...25.4 Gate WebSocket API v4Real-time WebSocket streams for market data (order books, trades, tickers, candlesticks) and private channe...24.4 ACTIV OnePlatform Web API (One API)WebSocket/WebAssembly JavaScript API for the ACTIV OnePlatform (Options Atlas), delivering real-time stream...24.0 Bitget Spot Trading APIREST API for spot trading on Bitget including market data, order management, account queries, wallet operat...23.6 Bitget WebSocket APIReal-time WebSocket API providing public and private channels for market data (tickers, candles, order book...23.6 DigiFinex Market Data APIThe Market Data API from DigiFinex — 21 operation(s) for market data.23.6 CoinEx REST API v2The primary HTTP REST API for CoinEx, providing access to spot trading, futures, perpetual contracts, accou...23.5 CoinEx WebSocket API v2 - FuturesReal-time WebSocket API for CoinEx futures and perpetual contract markets. Supports streaming subscriptions...23.5 CoinEx WebSocket API v2 - SpotReal-time WebSocket API for CoinEx spot markets. Supports streaming subscriptions for market depth, trade f...23.5 QuoteMedia OnDemand (QMOD) Data APICloud-based request/response REST API delivering real-time and delayed Level 1/Level 2 quotes, trades, hist...23.3 Bloomberg Open API (BLPAPI)The core Bloomberg API providing real-time market data, reference data, historical data, and intraday tick ...23.2 Hidden Road MiCA Post-Trade Transparency FeedA daily CSV feed of OTC spot crypto-asset transactions executed by Hidden Road Partners CIV NL B.V., publis...23.1 CoinAPI Market Data APINormalized cryptocurrency market data covering more than 350 exchanges and 28,000+ assets. Provides trades,...22.8 Bloomberg Open API (BLPAPI)The Bloomberg Open API (BLPAPI) enables programmatic access to Bloomberg Terminal data from applications ru...22.0 Bloomberg Open API (BLPAPI)Cross-platform API providing access to the full Bloomberg data ecosystem including real-time, reference, an...21.3 Yes Energy DataSignals APIDataSignals is Yes Energy's REST API for automated access to its North American wholesale power market data...20.4 1inch Spot Price APIReal-time USD and reference spot prices for tokens across supported networks, sourced from on-chain liquidity.20.3 Synthetix Info APIPublic REST API for accessing Synthetix market data including markets, prices, candles, funding rates, coll...20.3 Synthetix WebSocket Info APIPublic WebSocket API for real-time Synthetix market data subscriptions including live market prices, candle...20.3 Arkham Exchange APIREST API for Arkham Exchange covering public market data (symbols, tickers, order book, trades, klines) and...20.0 Arkham Exchange WebSocket APIWebSocket API for Arkham Exchange streaming market data and private account events - real-time ticker, dept...20.0 Tridge Data & Analytics APITridge advertises a commercial API for integrating its global agri-food price and trade data into a custome...19.9 Bloomberg Open API (BLPAPI)The core Bloomberg API providing real-time market data, reference data, historical data, and intraday tick ...19.7 Tradeweb Market Data APIReal-time and historical market data API providing independent pricing information and benchmark OTC pricin...19.2 Fenics Market DataFenics Market Data (FMD) is the exclusive data distributor of BGC Group, Inc. and its affiliates. FMD provi...18.8 FMX Futures Exchange ConnectivityFMX Futures Exchange launched September 23, 2024, initially listing SOFR futures (the largest notional futu...18.8 FMX FX (Fenics FX)FMX FX (operating as Fenics FX) is BGC's electronic foreign exchange platform covering Spot, Forwards, NDFs...18.8 FMX USTFMX UST (formerly Fenics UST) is BGC's electronic trading venue for U.S. Treasuries. Connectivity is a "poi...18.8 Lyra Public REST APIPublic REST API endpoints for querying market data, instruments, tickers, options boards, implied volatilit...18.4 Lyra WebSocket APIWebSocket API for real-time streaming of market data, order book updates, ticker subscriptions, and private...18.4 Bloomberg Open API (BLPAPI)The foundational API layer of the Bloomberg Platform providing real-time, reference, and historical data ac...18.3 Alchemix Token Price API (CoinGecko)CoinGecko provides real-time and historical price data for all Alchemix protocol tokens including ALCX (gov...18.2 big xyt APIThe core big xyt (xyt hub) API gives trading firms and exchanges programmatic access to normalised and raw ...18.2 BitMart Spot Trading APIThe BitMart Spot Trading REST API provides programmatic access to spot trading on the BitMart global crypto...18.2 BitMart Spot WebSocket APIThe BitMart Spot WebSocket API delivers real-time streaming market data and private account updates via per...18.2 Bloomberg Open API (BLPAPI)Core Bloomberg API providing real-time and reference data access for financial applications across trading,...18.2 Bloomberg Open API (BLPAPI)The core API providing programmatic access to the Bloomberg data ecosystem including real-time prices, refe...18.2 Mango v4 Fills FeedLow-latency WebSocket feed (service-mango-fills) that parses Mango V4 Perp and Openbook event queues and em...18.0 Mango v4 Orderbook FeedLow-latency WebSocket feed (service-mango-orderbook) that parses Mango V4 Perp and Openbook spot bookside a...18.0 Freightos Baltic Index (FBX)The Freightos Baltic Index is the global benchmark for container freight rates, providing weekly assessment...17.6 World Bank Commodity Markets DataThe World Bank provides commodity price data including shipping-related indices such as the Baltic Dry Inde...17.6 PropTrack APIsREST APIs providing Australian property intelligence — address suggestion and matching, property and listin...17.0 CoinDCX Streaming Socket.IO APIReal-time Socket.IO streaming at stream.coindcx.com for public spot and futures market data (orderbook dept...16.9 A5X Technical InterfacesThe trading, market data and post-trade interfaces A5X exposes to exchange participants — order entry and d...16.8 The Block Ecosystems / Data APIProgrammatic access to The Block's library of proprietary blockchain and ecosystem datasets and charts. Lic...16.6 Homads Rental Market DataThe Homads marketplace surface for searching and browsing mid-term (30+ day) furnished rental listings by l...14.9 BGC Group (Affiliated)BGC Group, Inc. (NASDAQ: BGC) was formed in 2004 when Cantor Fitzgerald spun out its voice-brokerage busine...14.4 Fenics Market Data (BGC)Fenics Market Data (FMD) is the "exclusive distributor of data for BGC Group, Inc. (NASDAQ: BGC) and its af...14.4 CoinMarketCap Pro APISingle REST API spanning Cryptocurrency endpoints (listings, quotes, OHLCV, market pairs, historical), Exch...14.1 LoopNet Listings APIAccess commercial real estate property listings including office, retail, industrial, multifamily, land, an...12.2 Autotrader Valuations APIDelivers current UK market vehicle valuation data based on real-time Autotrader marketplace signals. Provid...11.9 xRocket Exchange APIREST API for creating/canceling market/limit orders, retrieving order books, tracking pair rates, executing...11.7 xRocket Pay APIREST API (v2) to manage cheques, transfers, invoices, withdrawal links, withdrawals, mass transfers and que...11.7

Minimal 10 Almost no public developer surface

APEX on X1 APIAgent-facing API of APEX on the X1 blockchain, served from apexfaucet.xyz: a remote MCP server at /api/mcp ...10.8 MayStreet High Performance Query (HPQ) APILow-latency, near-time market data query API delivered as a streaming WebSockets service so clients can pro...9.8 MayStreet Market Data Lake Query APIQuery access to MayStreet's 20+ petabyte Market Data Lake of historical exchange data captured as PCAP and ...9.8 Ally Invest API (Legacy / Retired)The legacy Ally Invest brokerage REST API, inherited from Ally's 2016 acquisition of TradeKing. It offered ...9.6 Norgate Data Futures MetadataFutures-specific reference data covering around 100 markets across 11 worldwide exchange groups - market an...8.7 Norgate Data Price and Volume DataRetrieve daily EOD open/high/low/close, volume, turnover, unadjusted close, dividends and open interest as ...8.7 MultiLynq Fixed Income Trading APIMultiLynq's single normalized API for electronic fixed income trading across every major and emerging U.S. ...5.8 IEX Cloud Core Data API (sunset)Real-time and historical US equity quotes, intraday and historical prices, OHLCV charts, news, dividends, s...0.0 TD Ameritrade Market Data APIProvides REST endpoints for accessing real-time and historical market data. Includes current quotes for sin...0.0 TD Ameritrade Streaming Market Data APIProvides a WebSocket-based streaming API that delivers up-to-the-second market data including real-time Lev...0.0

Companies reaching this through an API (59)

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

Alchemix Ally Financial Asrai Autotrader aWATTar Bitget BitOasis Bitso Black Knight Blockdaemon Bloomberg Platform Bloomberg Product Suite Bloomberg Products and Platforms Braiins Bullet ChatHome Circana Cision Coil Coinbase Coinbase Commerce CoinDCX CoreLogic Australia Cryptomus DigiFinex evidinvest-com fxapis-com GMX GriffNode Hidden Road Homads Hyperliquid Independent Reserve Jupiter Kalshi Liquid LoopNet Lyra Messari Moralis Paxos Pintu RavenPack Refinitiv Revolut Ribbon Finance Robinhood roic-ai Shipping.com SimCorp Dimension

Show all 59 companies ↓

SteadyAPI StoneX SynFutures Synthetix TAAPI.IO Tradier Uniblock vibesprings-net Zero Hash

Score breakdown

Frequency

73.2

log-scaled weighted occurrences

Breadth

4.6

spread across providers

Quality lift

36.1

mean composite of providers using it

Cohesion

32.0

strength of nearest seed neighbor

Where this tag sits

361 providers carry this tag directly, and 362 counting the 1 narrower tag below — 1 more to reach.

Finance broader Financial Data broader Indices 11 providers

Where this tag comes from

Provider tag361

Api tag340

Openapi tag52

Openapi op tag262

Asyncapi tag1

Markets provisional

Kin Score markets whose measured providers carry this tag. Share is the fraction of the market's measured providers that carry it — it describes the market, not this tag.

Market	Share of the market's providers
Capital Markets and Trading	77%
Private Markets and Fund Administration (ILPA, broker-dealer registration, options market-data vendors)	54%
Crypto and Digital-Asset Exchanges	36%
News and Media	26%
FINOS Open Source Fintech (members and project maintainers)	21%

Cohort brief

Auto-generated

The 351 providers in the APIs.io catalog tagged Market Data, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers

351

of 361 in the catalog

Mean Kin Score

36.5

+12.4 vs catalog 24.1

Mean Agent Readiness

+10.9 vs catalog 14.1

Spread

0–81.5

median 37.1 · σ 16.6

How the 351 split by band

Exemplar 11Strong 35Developing 103Thin 112Emerging 61Minimal 29

Facet averages, against the whole catalog

Facet	This cohort	Catalog	Difference	Scored
Developer Ergonomics	43.1	24.5	+18.6	351
Contract Quality	33.6	18.6	+15	351
Operational Transparency	23.4	13.2	+10.2	351
Discoverability	67.4	59.1	+8.3	351
Access Clarity	37.9	30	+7.9	351
Contract Governance	16	9.7	+6.3	351

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

Artifact	This cohort	Catalog	Difference
MCP server (any)	30%	18%	+12
MCP server (first-party)	31%	16%	+15
Agent Skills	0%	0%	0
OAuth scopes	21%	13%	+8
Security	99%	99%	0
Arazzo workflows	2%	1%	+1
Governance rules	62%	36%	+26

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

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 →

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curl "https://apis.io/api/v1/tags/market-data"

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curl "https://apis.io/api/v1/tags?limit=25"

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Market Data

Providers using this tag (361)

APIs with this tag (341)