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 8 Complete, well-documented, and agent-ready

Kraken Spot WebSocket API v2Real-time market data and private user data over WebSocket v2 using subscribe/unsubscribe semantics. Public...74.5 Kraken Trading APIOrder placement, edit, and cancellation74.5 AlphaAI Claude Code SkillsProvider-published open-source pack of five Claude Code agent skills wrapping the MCP tools into ready-made...70.6 AlphaAI MCP ServerHosted MCP server over Streamable HTTP exposing fifteen tools for news search, ticker news, trending, actio...70.6 Braiins Hashpower APIPublic HTTP API for the Braiins Hashpower marketplace: buying hashrate on the spot market, scheduling fixed...68.2 Crypto.com Exchange FIX APIFIX 4.4-based API for institutional order entry, market data and drop copy on the Crypto.com Exchange, with...68.2 Crypto.com Exchange WebSocket API v1WebSocket API for the Crypto.com Exchange, split into a Market Data stream (public channels for book, ticke...68.2 Crypto.com Trading APIPrivate trading endpoints manage order placement and lifecycle. All order operations (create, amend, cancel...68.2

Strong 12 Solid coverage with minor gaps

Bullish FIX APIThe Bullish FIX order-entry, drop-copy, reference-data and trading-status surface for institutional and hig...65.1 Bullish WebSocket Private Data APIAsyncAPI 3.0.0 document for the authenticated private stream — real-time orders, trades, asset accounts, tr...65.1 Clear Street MCP ServerClear Street's official remote Model Context Protocol server, exposing the Clear Street Trading API to AI a...65.0 GoldRush Hyperliquid WebSocket APIWebSocket channels for Hyperliquid markets including l2Book (wire-equal to the public feed), l2BookDiff (Go...62.2 Alpaca Trading APIThe Alpaca Trading API enables commission-free trading of US-listed equities, options, and crypto. It expos...59.7 Bloomberg EMSX APIEnables programmatic management and automation of equities, futures, and options trading through the Bloomb...59.0 Tradier Brokerage APIThe Tradier Brokerage API provides REST endpoints for placing equity, option, and multileg orders, retrievi...56.6 Tradier MCP ServerTradier's official hosted MCP server (launched July 2026) connects AI assistants like ChatGPT, Claude, Gemi...56.6 Tradier Trading APIThe Trading API from Tradier — 2 operation(s) for trading.56.6 EVEDEX Async API (Centrifugo)Real-time exchange events over WebSocket, brokered by Centrifugo with JWT channel access rights and epoch-b...54.9 EVEDEX Documentation & Agent SurfaceThe GitBook developer portal and agent-native documentation surface. Every page is retrievable as markdown ...54.9 Adanos Market Sentiment APIRESTful JSON API grouping five sentiment services (Reddit Stocks, X.com Stocks, Stock News, Polymarket Stoc...54.3

Developing 51 Usable, with meaningful gaps to close

QFEX Trade WebSocketMultiplexed WebSocket gateway for QFEX order entry and account streams: add / modify / cancel orders, stop ...54.0 Sygnum Trading APIOrder management and execution for Sygnum's digital asset trading service, offered over both REST and the F...53.4 Binance.US REST APIThe Binance.US REST API is the primary programmatic interface to the exchange. It exposes general system an...52.6 Binance.US WebSocket APIThe Binance.US WebSocket API is a request/response API delivered over a persistent WebSocket connection at ...52.6 Blockchain.com Exchange WebSocket APIReal-time WebSocket gateway for the Blockchain.com Exchange. Anonymous channels stream heartbeat, L2/L3 ord...52.5 Blockchain.com Trading APIPost orders and get information about historical trades52.5 Databento Historical Timeseries APIStreams historical market data over HTTP for a requested date/time range. A single request selects a datase...51.7 Databento Live Streaming APILow-latency live market data delivered over a raw TCP binary streaming protocol using Databento Binary Enco...51.7 Ostium Builder APIPublic Builder API and TypeScript/Python SDK surface for reading Ostium market data (pairs, prices, OHLC ca...51.2 FOREX.com Account APIClient and trading account information50.2 FOREX.com Order APIPlace and manage trade orders on the FOREX.com platform against live streaming prices. Supports market pric...50.2 FOREX.com Position APIList and manage open trading positions on the FOREX.com platform. Retrieve active positions including unrea...50.2 FOREX.com Session APIAuthentication and session management50.2 tZERO Issuance & Secondary Markets APIREST/JSON API for creating individual broker-dealer accounts, triggering and reviewing KYC on investors, br...50.2 Sponge Trading APIThe Trading API from Sponge — 1 operation(s) for trading.49.3 Bitculator Data APIREST API for cryptocurrency market data. JSON responses with Laravel-style pagination, HTTP Bearer auth, qu...48.9 SS&C Eze EMS xAPICross-platform execution-management API for Eze EMS, published by SS&C Eze as a gRPC contract (three proto3...48.2 Gemini Exchange APIREST and WebSocket APIs for the Gemini cryptocurrency exchange, providing market data, order management, ac...48.0 Triton One Trading APIsHosted trading APIs available on the Triton platform — Pyth Hermes price feeds, Jito bundle simulation, Met...48.0 Anchorage Digital Trading APIAPI endpoints for managing RFQ, Market or Limit orders [Anchorage Digital websocket API documentation.](htt...47.8 OANDA Account APIManage and retrieve OANDA trading account details, summaries, tradeable instruments, and configuration sett...47.6 OANDA Order APICreate, list, modify, and cancel orders in an OANDA trading account. Supports market, limit, stop, take pro...47.6 OANDA Position APIList all positions (historical and open) and close out open positions for a specific instrument in an OANDA...47.6 OANDA Trade APIList, retrieve, partially or fully close open trades, and manage dependent orders (take profit, stop loss, ...47.6 OANDA Transaction APIAccess full transaction history for an OANDA trading account with time-based and ID-range queries. Includes...47.6 TokenBot APIREST + GraphQL API for TokenBot copy-trading — manage exchange accounts, strategies, copiers, trades, notif...46.8 Deribit FIX APIFinancial Information eXchange protocol interface for institutional trading on Deribit. Designed for profes...46.7 Deribit Trading APIThe Trading API from Deribit — 38 operation(s) for trading.46.7 Deribit WebSocket APIJSON-RPC over WebSocket interface for real-time bidirectional communication with the Deribit exchange. Reco...46.7 ICE Consolidated Feed APIThe ICE Consolidated Feed API provides developers with access to ICE Data Services real-time and delayed ma...46.3 FX Market Data - NDF Matching APIPoint-to-point market data service based on FIX SBE technology, allowing trading participants to receive re...46.2 FX Participant Insight Reporting APIAPI providing reporting and analytics for FX trading participants on LSEG venues, enabling access to execut...46.2 FX Reference Data APIService providing reference data for LSEG FX venues, offering instrument and venue configuration data to su...46.2 LSEG Tick History REST APIREST API providing access to historical high-frequency timestamped tick data across all global asset classe...46.2 Bullet Trading APIThe Trading API from Bullet — 2 operation(s) for trading.45.2 OKX Trading APIREST and WebSocket endpoints for order book trading, algo orders, block trading, spread trading, and copy t...44.8 FinancialData.Net MCP ServerHosted MCP server mapping the entire REST API documentation into callable MCP tools (e.g., getStockSymbols,...43.3 FinancialData.Net REST APIREST API for financial and market data covering equities, ETFs, crypto, forex, derivatives, fundamentals, f...43.3 Mudrex Futures Trading APIProgrammatic control over a Mudrex futures trading account. Transfer funds between the spot and futures wal...43.1 Mudrex MCP ServerMudrex's official hosted Model Context Protocol server, which exposes the Mudrex Futures Trading API to MCP...43.1 Montran Trading SystemProvides a fast, secure, and innovative platform that facilitates the multi-currency trading of financial i...42.7 CoinSwitch PRO Trading APIProfessional REST + WebSocket trading API for Spot (INR/USDT), USDT-margined Perpetual Futures, HFT, and Op...42.6 Bloomberg EMSX Trading APIAPI for order creation, routing, management and execution monitoring through Bloomberg EMSX platform. Suppo...42.4 Bloomberg Order Management APIAPI for order and execution management, enabling algorithmic trading, smart order routing, and integration ...42.4 Sequence Markets Trading APIBearer-auth REST API and multiplexed WebSocket streaming surface for the Sequence Markets trading OS — cred...42.3 DriveWealth FIX APIFinancial Information Exchange (FIX) protocol API for institutional-grade connectivity to DriveWealth's tra...41.9 Pintu Pro Partner APIPintu Pro's institutional/partner trading API. A unified message format is used over both an HTTP endpoint ...41.9 ETHGas APIETHGas v1 REST + WebSocket API for market data, order placement/management, funding (collateral deposits/wi...41.6 Cryptomus Exchange and Market Data APIREST and WebSocket API for accessing real-time cryptocurrency exchange rates, order books, tickers, trade h...40.7 Binance Trading APITrading endpoints for COIN-M futures orders.40.6 Bitnomial Exchange REST APIPublic HTTPS REST API for the Bitnomial exchange — products and contract specs, orders, fills, block trades...40.1

Thin 48 Limited public surface area

Tristero Trading APIThe Trading API from Tristero — 2 operation(s) for trading.39.0 Public Trading APIREST API for programmatic trading on Public — manage brokerage accounts, pull portfolio and transaction his...38.4 Korbit Trading APIThe Trading API from Korbit — 4 operation(s) for trading.38.2 IntelligentCross FIX Order Entry APIOrder entry into the IntelligentCross ATS books (Midpoint, ASPEN Fee/Fee, ASPEN Maker/Taker, ASPEN Taker/Ma...38.0 Rho Protocol Trading APIThe Trading API from Rho Protocol — 3 operation(s) for trading.38.0 Hyperliquid Python SDKOfficial Python SDK for the Hyperliquid REST and WebSocket APIs. Handles EIP-712 signing, action serializat...37.9 Hyperliquid REST APIPublic REST API for the Hyperliquid exchange. Read endpoints expose market metadata, order books, candles, ...37.9 Hyperliquid Rust SDKOfficial Rust SDK for the Hyperliquid REST and WebSocket APIs, suited for high-performance market-making an...37.9 Liquid Co-Invest MCPCo-Invest is Liquid delivered as a remote Model Context Protocol (MCP) server. Once connected, an MCP clien...37.5 Webull Trading APIOrder management across stocks, options, futures, crypto, and event contracts — place, preview, replace, ca...37.2 WazirX Trading APIAuthenticated endpoints for order management and trade history36.0 BitGo Trading APIThe Trading API from BitGo — 1 operation(s) for trading.35.6 Taurus-PRIME APIInstitutional trading infrastructure with deep liquidity and institutional-grade execution, accessible over...35.4 PowerTrade FIX APIFIX 4.4 order-entry and drop-copy gateway for order management, with Go example clients published on GitHub.34.6 PowerTrade REST APIPublic and private REST endpoints for market-data summaries, public trade history, positions, holdings, bal...34.6 Interactive Brokers Client Portal APIThe Interactive Brokers Client Portal API is a REST API accessed through a locally running Java gateway tha...34.4 Jupiter Perps APIREST interface to Jupiter Perpetuals — fetch markets, positions, funding, pricing, and build open / close /...34.2 Jupiter Prediction APIBinary prediction-market API for browsing markets, fetching prices and positions, and constructing trade tr...34.2 Jupiter Trigger API (Limit Orders)Create, query, and cancel on-chain trigger orders — single limit orders as well as one-cancels-the-other (O...34.2 MIAXdx Market Data and Account APIPublic and authenticated REST API on api.ledgerx.com covering exchange contracts, traded contracts, contrac...33.9 MIAXdx Trading APIAuthenticated order-entry REST API on trade.ledgerx.com for listing resting limit orders, placing orders, c...33.9 StoneX GF Futures APIThe StoneX GF (GAIN Futures) API provides institutional-grade access to futures trading including market da...33.7 StoneX Trading APITrade submission and management.33.7 DEGIRO trading APIThe trading API from DEGIRO — 4 operation(s) for trading.33.5 eToro Trading APIProvides REST endpoints for executing and managing trades on eToro for both real and demo (paper trading) a...33.5 Capital.com WebSocket APIThe Capital.com WebSocket API streams real-time market data, supporting up to 40 concurrent instruments and...33.4 HTX Spot REST APIThe HTX Spot REST API provides HTTP access to reference data (system status, symbols, currencies, chains), ...32.7 Alpaca Market Data Streaming APIReal-time market data over WebSocket. Stocks stream at wss://stream.data.alpaca.markets/v2/{feed} (iex, sip...32.3 CoinNudge Data APIREST HTTP API returning JSON/CSV for crypto market datasets. Includes a free Research scope (no paid key re...32.2 Reservoir NFT APIAll-in-one NFT data and trading API enabling developers to get NFT data, create orders, and execute trades ...31.9 Bloomberg API (BLPAPI)Desktop API enabling custom applications to access Bloomberg data and functionality programmatically throug...31.5 GRVT Market Data APIPublic market-data API for GRVT — instruments, currencies, supported assets, margin rules, mini/full ticker...31.0 GRVT Trading APIAuthenticated trading API for GRVT — create/cancel orders (single, bulk, TP/SL, trigger), open orders and o...31.0 One Trading Trading APIAccount order and trade endpoints (Bearer token, TRADE/READ scope)30.4 Murex MX.3 PlatformComprehensive capital markets platform providing trading, risk management, and post-trade operations across...30.3 FalconX APIFalconX REST trading API for institutional digital-asset execution: price quotes, order placement and execu...30.0 Synthetix Trade APIAuthenticated REST API for trading operations and account management on the Synthetix perpetuals exchange. ...29.9 Synthetix WebSocket Trade APIAuthenticated WebSocket API for real-time trading operations and account event streaming on Synthetix. Supp...29.9 E*TRADE from Morgan Stanley - Order APIThe E*TRADE from Morgan Stanley Order API is the trading module of the public E*TRADE V1 REST platform, let...29.3 Perp V1 Market Maker APISigned, high-performance interface for connecting trading bots to the perp.com V1 matching engine: a privat...29.1 1inch Orderbook APILimit Order Protocol orderbook — create, query, fill, and cancel signed limit orders across supported EVM c...28.2 BitMart Futures Trading APIThe BitMart Futures Trading REST API enables trading of perpetual futures contracts on the BitMart derivati...28.0 BitMart Margin Trading APIThe BitMart Margin Trading API provides access to isolated margin trading functionality. Developers can sub...28.0 BitMart Spot Trading APIThe BitMart Spot Trading REST API provides programmatic access to spot trading on the BitMart global crypto...28.0 Arkham ExchangeArkham's centralized crypto exchange - spot and perpetual futures trading, deposits, withdrawals, and integ...27.8 Arkham Exchange APIREST API for Arkham Exchange covering public market data (symbols, tickers, order book, trades, klines) and...27.8 Hidden Road API (v0)The Hidden Road prime brokerage and clearing API suite, announced generally available on 2023-05-04. Four s...27.3 KyberSwap Limit Order APIEnables creation, management, and fulfillment of gasless limit orders. Exposes General, Maker, and Taker en...27.3

Emerging 15 Early or largely undocumented

A-Mark Wholesale TradingA-Mark's wholesale precious metals trading platform enables dealers and financial institutions to buy and s...25.7 CoinAPI EMS Trading APICoinAPI's Execution Management System (EMS) is a unified, multi-exchange crypto trading API that lets insti...25.5 El Dorado APIThe El Dorado onramp/offramp trading API for converting between Latin American fiat currencies and crypto (...25.5 Pendle Boros HTTP APIREST API for the Boros margin trading venue — querying markets, account positions, orders, fills, funding, ...24.3 Pendle Boros SDKOfficial TypeScript SDK (`@pendle/boros-sdk-public`) that wraps calldata generation, EIP-712 signing, the A...24.3 Filament APISignature-authenticated REST + WebSocket order-book API for the Filament perpetual DEX on Sei. Place limit/...24.2 Delphi APIREST + on-chain API for the Delphi information (prediction) market platform. REST endpoints cover market di...22.1 A5X Technical InterfacesThe trading, market data and post-trade interfaces A5X exposes to exchange participants — order entry and d...19.3 Ally Invest API (Legacy / Retired)The legacy Ally Invest brokerage REST API, inherited from Ally's 2016 acquisition of TradeKing. It offered ...18.8 Calypso Core APIMain REST API for the Nasdaq Calypso platform. Provides programmatic access to remotely control calls to th...17.3 Calypso Front Office APIProvides programmatic access to Calypso front office capabilities including real-time portfolio insights, i...17.3 Flowdesk Platform ConnectFlowdesk Platform Connect is the developer API for programmatic OTC spot trading. It offers a REST interfac...17.3 EPEX SPOT MATS Auction Trading APIMember trading API for the Multiple Auction Trading System (MATS), the platform that replaced the legacy ET...17.0 Calypso WorkstationCalypso Workstation is the end-user desktop application for the Nasdaq Calypso platform. It delivers real-t...16.9 Figure Markets Exchange APIAccess-controlled trading API for the Figure Markets exchange (EP3 matching engine on Provenance Blockchain...16.3

Minimal 5 Almost no public developer surface

SunGard Financial SystemsSunGard Financial Systems offered software and services for trading, treasury, risk management, capital mar...10.5 xRocket Exchange APIREST API for creating/canceling market/limit orders, retrieving order books, tracking pair rates, executing...10.2 xRocket Pay APIREST API (v2) to manage cheques, transfers, invoices, withdrawal links, withdrawals, mass transfers and que...10.2 Hundsun Trading PlatformEnterprise trading platform offered to brokerages and securities firms, covering order management, executio...8.7 Iress QuantFeedQuantFeed is Iress's signature end-to-end ultra-low latency market data API. Built to deliver an unmatched ...7.2

Companies reaching this through an API (23)

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

Score breakdown

Frequency

72.0

log-scaled weighted occurrences

Breadth

7.2

spread across providers

Quality lift

34.8

mean composite of providers using it

Cohesion

36.2

strength of nearest seed neighbor

Where this tag comes from

Api tag141

Provider tag262

Openapi tag15

Openapi op tag104

Cohort brief

Auto-generated

The 251 providers in the APIs.io catalog tagged Trading, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers

251

all scored

Mean Kin Score

31.6

+7.7 vs catalog 23.9

Mean Agent Readiness

18.4

+6.4 vs catalog 12

Spread

1.2–74.5

median 33.5 · σ 16.8

How the 251 split by band

Exemplar 3Strong 12Developing 73Thin 77Emerging 43Minimal 43

Facet averages, against the whole catalog

Facet	This cohort	Catalog	Difference	Scored
Developer Ergonomics	37.3	23.4	+13.9	251
Contract Quality	29.7	19.8	+9.9	251
Operational Transparency	21.3	14	+7.3	251
Discoverability	67.5	61.2	+6.3	251
Contract Governance	8.3	6.4	+1.9	251
Access Clarity	28.4	26.5	+1.9	251

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)	13%	10%	+3
MCP server (first-party)	16%	13%	+3
Agent Skills	0%	0%	0
OAuth scopes	13%	11%	+2
Security	99%	97%	+2
Arazzo workflows	3%	2%	+1
Governance rules	17%	14%	+3

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 Kraken 74.5
2 AlphaAI 70.6
3 Crypto.com 68.2
4 Bullish 65.1
5 Clear Street 65
6 ThetaData 62.4
7 Ripio 62
8 MaiCoin 60.4
9 Alpaca 59.7
10 Bloomberg 59

Work with this as data

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

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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.

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The distribution (Pro)

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  -H "X-API-Key: $APIS_IO_KEY"

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Trading

Providers using this tag (262)

APIs with this tag (139)