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

AlphaAI Claude Code SkillsProvider-published open-source pack of five Claude Code agent skills wrapping the MCP tools into ready-made...73.7 AlphaAI MCP ServerHosted MCP server over Streamable HTTP exposing fifteen tools for news search, ticker news, trending, actio...73.7 AlphaAI REST APIREST API for relevance-scored, ticker-linked financial news. Fifteen read-only operations across news feeds...73.7 Crypto.com Exchange FIX APIFIX 4.4-based API for institutional order entry, market data and drop copy on the Crypto.com Exchange, with...72.6 Crypto.com Exchange REST API v1REST API for the Crypto.com Exchange covering public reference and market data (instruments, order book, ca...72.6 Crypto.com Exchange WebSocket API v1WebSocket API for the Crypto.com Exchange, split into a Market Data stream (public channels for book, ticke...72.6 Kraken Spot WebSocket API v2Real-time market data and private user data over WebSocket v2 using subscribe/unsubscribe semantics. Public...70.6 Kraken Trading APIOrder placement, edit, and cancellation70.6 Clear Street MCP ServerClear Street's official remote Model Context Protocol server, exposing the Clear Street Trading API to AI a...67.4 Bullish FIX APIThe Bullish FIX order-entry, drop-copy, reference-data and trading-status surface for institutional and hig...67.3 Bullish WebSocket Private Data APIAsyncAPI 3.0.0 document for the authenticated private stream — real-time orders, trades, asset accounts, tr...67.3

Strong 14 Solid coverage with minor gaps

Factset Trading APIThe Trading API from Factset — 3 operation(s) for trading.64.8 Bloomberg EMSX APIEnables programmatic management and automation of equities, futures, and options trading through the Bloomb...63.8 Alpaca Trading APIThe Alpaca Trading API enables commission-free trading of US-listed equities, options, and crypto. It expos...62.7 Tradier Brokerage APIThe Tradier Brokerage API provides REST endpoints for placing equity, option, and multileg orders, retrievi...61.4 Tradier Brokerage APITradier Brokerage API from Tradier — 21 path(s) described in OpenAPI.61.4 Tradier MCP ServerTradier's official hosted MCP server (launched July 2026) connects AI assistants like ChatGPT, Claude, Gemi...61.4 GoldRush Hyperliquid WebSocket APIWebSocket channels for Hyperliquid markets including l2Book (wire-equal to the public feed), l2BookDiff (Go...60.4 Blockchain.com Exchange WebSocket APIReal-time WebSocket gateway for the Blockchain.com Exchange. Anonymous channels stream heartbeat, L2/L3 ord...59.7 Blockchain.com Trading APIPost orders and get information about historical trades59.7 Databento Historical Timeseries APIStreams historical market data over HTTP for a requested date/time range. A single request selects a datase...58.9 Databento Live Streaming APILow-latency live market data delivered over a raw TCP binary streaming protocol using Databento Binary Enco...58.9 Binance.US REST APIThe Binance.US REST API is the primary programmatic interface to the exchange. It exposes general system an...55.1 Binance.US WebSocket APIThe Binance.US WebSocket API is a request/response API delivered over a persistent WebSocket connection at ...55.1 QFEX Trade WebSocketMultiplexed WebSocket gateway for QFEX order entry and account streams: add / modify / cancel orders, stop ...54.8

Developing 45 Usable, with meaningful gaps to close

Sponge Trading APIThe Trading API from Sponge — 1 operation(s) for trading.51.7 FOREX.com Account APIClient and trading account information51.5 FOREX.com Order APIPlace and manage trade orders on the FOREX.com platform against live streaming prices. Supports market pric...51.5 FOREX.com Position APIList and manage open trading positions on the FOREX.com platform. Retrieve active positions including unrea...51.5 FOREX.com Session APIAuthentication and session management51.5 Ostium Builder APIPublic Builder API and TypeScript/Python SDK surface for reading Ostium market data (pairs, prices, OHLC ca...51.4 Triton One Trading APIsHosted trading APIs available on the Triton platform — Pyth Hermes price feeds, Jito bundle simulation, Met...49.4 OANDA Account APIManage and retrieve OANDA trading account details, summaries, tradeable instruments, and configuration sett...47.8 OANDA Order APICreate, list, modify, and cancel orders in an OANDA trading account. Supports market, limit, stop, take pro...47.8 OANDA Position APIList all positions (historical and open) and close out open positions for a specific instrument in an OANDA...47.8 OANDA Trade APIList, retrieve, partially or fully close open trades, and manage dependent orders (take profit, stop loss, ...47.8 OANDA Transaction APIAccess full transaction history for an OANDA trading account with time-based and ID-range queries. Includes...47.8 Danske Bank (UK) FX Trade Execution APIPremium first-party API for executing FX trades against existing quotes, published on the Danske Bank devel...47.4 TokenBot APIREST + GraphQL API for TokenBot copy-trading — manage exchange accounts, strategies, copiers, trades, notif...47.1 Bullet Trading APIThe Trading API from Bullet — 2 operation(s) for trading.46.9 Anchorage Digital Trading APIAPI endpoints for managing RFQ, Market or Limit orders [Anchorage Digital websocket API documentation.](htt...46.5 ICE Consolidated Feed APIThe ICE Consolidated Feed API provides developers with access to ICE Data Services real-time and delayed ma...46.1 Gemini Exchange APIREST and WebSocket APIs for the Gemini cryptocurrency exchange, providing market data, order management, ac...46.0 OKX Trading APIREST and WebSocket endpoints for order book trading, algo orders, block trading, spread trading, and copy t...44.8 Deribit FIX APIFinancial Information eXchange protocol interface for institutional trading on Deribit. Designed for profes...44.6 Deribit Trading APIThe Trading API from Deribit — 38 operation(s) for trading.44.6 Deribit WebSocket APIJSON-RPC over WebSocket interface for real-time bidirectional communication with the Deribit exchange. Reco...44.6 Montran Trading SystemProvides a fast, secure, and innovative platform that facilitates the multi-currency trading of financial i...44.2 Mudrex Futures Trading APIProgrammatic control over a Mudrex futures trading account. Transfer funds between the spot and futures wal...43.4 Mudrex MCP ServerMudrex's official hosted Model Context Protocol server, which exposes the Mudrex Futures Trading API to MCP...43.4 Binance Trading APITrading endpoints for COIN-M futures orders.43.2 DriveWealth FIX APIFinancial Information Exchange (FIX) protocol API for institutional-grade connectivity to DriveWealth's tra...43.1 CoinSwitch PRO Trading APIProfessional REST + WebSocket trading API for Spot (INR/USDT), USDT-margined Perpetual Futures, HFT, and Op...42.9 FX Market Data - NDF Matching APIPoint-to-point market data service based on FIX SBE technology, allowing trading participants to receive re...42.9 FX Participant Insight Reporting APIAPI providing reporting and analytics for FX trading participants on LSEG venues, enabling access to execut...42.9 FX Reference Data APIService providing reference data for LSEG FX venues, offering instrument and venue configuration data to su...42.9 LSEG Tick History REST APIREST API providing access to historical high-frequency timestamped tick data across all global asset classe...42.9 Sequence Markets Trading APIBearer-auth REST API and multiplexed WebSocket streaming surface for the Sequence Markets trading OS — cred...42.6 Pintu Pro Partner APIPintu Pro's institutional/partner trading API. A unified message format is used over both an HTTP endpoint ...42.5 Bloomberg EMSX Trading APIAPI for order creation, routing, management and execution monitoring through Bloomberg EMSX platform. Suppo...42.2 Gala DeFi Backend APIThe backend behind GalaSwap: trade quotes, pools and composite pools, positions, add and remove liquidity, ...42.0 ETHGas APIETHGas v1 REST + WebSocket API for market data, order placement/management, funding (collateral deposits/wi...41.9 Tristero Trading APIThe Trading API from Tristero — 2 operation(s) for trading.41.7 Anchorage Digital Trading APIAPI endpoints for managing RFQ, Market or Limit orders [Anchorage Digital websocket API documentation.](htt...41.6 Bloomberg Order Management APIAPI for order and execution management, enabling algorithmic trading, smart order routing, and integration ...41.2 Korbit Trading APIThe Trading API from Korbit — 4 operation(s) for trading.41.1 Bitnomial Exchange REST APIPublic HTTPS REST API for the Bitnomial exchange — products and contract specs, orders, fills, block trades...40.4 Rho Protocol Trading APIThe Trading API from Rho Protocol — 3 operation(s) for trading.40.3 Public Trading APIREST API for programmatic trading on Public — manage brokerage accounts, pull portfolio and transaction his...39.5 Cryptomus Exchange and Market Data APIREST and WebSocket API for accessing real-time cryptocurrency exchange rates, order books, tickers, trade h...39.4

Thin 39 Limited public surface area

Liquid Co-Invest MCPCo-Invest is Liquid delivered as a remote Model Context Protocol (MCP) server. Once connected, an MCP clien...38.6 IntelligentCross FIX Order Entry APIOrder entry into the IntelligentCross ATS books (Midpoint, ASPEN Fee/Fee, ASPEN Maker/Taker, ASPEN Taker/Ma...38.3 Webull Trading APIOrder management across stocks, options, futures, crypto, and event contracts — place, preview, replace, ca...37.5 Hyperliquid Python SDKOfficial Python SDK for the Hyperliquid REST and WebSocket APIs. Handles EIP-712 signing, action serializat...37.2 Hyperliquid REST APIPublic REST API for the Hyperliquid exchange. Read endpoints expose market metadata, order books, candles, ...37.2 Hyperliquid Rust SDKOfficial Rust SDK for the Hyperliquid REST and WebSocket APIs, suited for high-performance market-making an...37.2 Blockchain.com Trading APIAuthenticated order management and trade history.36.4 One Trading Trading APIAccount order and trade endpoints (Bearer token, TRADE/READ scope)36.1 Interactive Brokers Client Portal APIThe Interactive Brokers Client Portal API is a REST API accessed through a locally running Java gateway tha...35.8 Jupiter Perps APIREST interface to Jupiter Perpetuals — fetch markets, positions, funding, pricing, and build open / close /...35.4 Jupiter Prediction APIBinary prediction-market API for browsing markets, fetching prices and positions, and constructing trade tr...35.4 Jupiter Trigger API (Limit Orders)Create, query, and cancel on-chain trigger orders — single limit orders as well as one-cancels-the-other (O...35.4 BitGo Trading APIThe Trading API from BitGo — 1 operation(s) for trading.35.2 Taurus-PRIME APIInstitutional trading infrastructure with deep liquidity and institutional-grade execution, accessible over...34.9 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 WazirX Trading APIAuthenticated endpoints for order management and trade history34.4 Capital.com WebSocket APIThe Capital.com WebSocket API streams real-time market data, supporting up to 40 concurrent instruments and...34.3 Alpaca Market Data Streaming APIReal-time market data over WebSocket. Stocks stream at wss://stream.data.alpaca.markets/v2/{feed} (iex, sip...33.5 eToro Trading APIProvides REST endpoints for executing and managing trades on eToro for both real and demo (paper trading) a...33.4 MIAXdx Market Data and Account APIPublic and authenticated REST API on api.ledgerx.com covering exchange contracts, traded contracts, contrac...33.4 MIAXdx Trading APIAuthenticated order-entry REST API on trade.ledgerx.com for listing resting limit orders, placing orders, c...33.4 Perp V1 Market Maker APISigned, high-performance interface for connecting trading bots to the perp.com V1 matching engine: a privat...32.9 DEGIRO trading APIThe trading API from DEGIRO — 4 operation(s) for trading.32.8 HTX Spot REST APIThe HTX Spot REST API provides HTTP access to reference data (system status, symbols, currencies, chains), ...32.7 StoneX GF Futures APIThe StoneX GF (GAIN Futures) API provides institutional-grade access to futures trading including market da...32.0 StoneX Trading APITrade submission and management.32.0 Murex MX.3 PlatformComprehensive capital markets platform providing trading, risk management, and post-trade operations across...31.9 GRVT Market Data APIPublic market-data API for GRVT — instruments, currencies, supported assets, margin rules, mini/full ticker...31.3 GRVT Trading APIAuthenticated trading API for GRVT — create/cancel orders (single, bulk, TP/SL, trigger), open orders and o...31.3 Synthetix Trade APIAuthenticated REST API for trading operations and account management on the Synthetix perpetuals exchange. ...31.2 Synthetix WebSocket Trade APIAuthenticated WebSocket API for real-time trading operations and account event streaming on Synthetix. Supp...31.2 FalconX APIFalconX REST trading API for institutional digital-asset execution: price quotes, order placement and execu...30.0 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 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 Reservoir NFT APIAll-in-one NFT data and trading API enabling developers to get NFT data, create orders, and execute trades ...28.0

Emerging 17 Early or largely undocumented

Arkham ExchangeArkham's centralized crypto exchange - spot and perpetual futures trading, deposits, withdrawals, and integ...26.1 Arkham Exchange APIREST API for Arkham Exchange covering public market data (symbols, tickers, order book, trades, klines) and...26.1 KyberSwap Limit Order APIEnables creation, management, and fulfillment of gasless limit orders. Exposes General, Maker, and Taker en...25.4 El Dorado APIThe El Dorado onramp/offramp trading API for converting between Latin American fiat currencies and crypto (...25.0 CoinAPI EMS Trading APICoinAPI's Execution Management System (EMS) is a unified, multi-exchange crypto trading API that lets insti...24.7 Pendle Boros HTTP APIREST API for the Boros margin trading venue — querying markets, account positions, orders, fills, funding, ...24.6 Pendle Boros SDKOfficial TypeScript SDK (`@pendle/boros-sdk-public`) that wraps calldata generation, EIP-712 signing, the A...24.6 Filament APISignature-authenticated REST + WebSocket order-book API for the Filament perpetual DEX on Sei. Place limit/...24.4 Bloomberg API (BLPAPI)Desktop API enabling custom applications to access Bloomberg data and functionality programmatically throug...23.4 Delphi APIREST + on-chain API for the Delphi information (prediction) market platform. REST endpoints cover market di...20.7 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 Ally Invest API (Legacy / Retired)The legacy Ally Invest brokerage REST API, inherited from Ally's 2016 acquisition of TradeKing. It offered ...16.9 Flowdesk Platform ConnectFlowdesk Platform Connect is the developer API for programmatic OTC spot trading. It offers a REST interfac...16.6 EPEX SPOT MATS Auction Trading APIMember trading API for the Multiple Auction Trading System (MATS), the platform that replaced the legacy ET...15.6 Figure Markets Exchange APIAccess-controlled trading API for the Figure Markets exchange (EP3 matching engine on Provenance Blockchain...15.5 Calypso WorkstationCalypso Workstation is the end-user desktop application for the Nasdaq Calypso platform. It delivers real-t...14.4

Minimal 6 Almost no public developer surface

SunGard Financial SystemsSunGard Financial Systems offered software and services for trading, treasury, risk management, capital mar...10.5 A-Mark Wholesale TradingA-Mark's wholesale precious metals trading platform enables dealers and financial institutions to buy and s...9.4 Bitculator Data APIREST API for cryptocurrency market data. JSON responses with Laravel-style pagination, HTTP Bearer auth, qu...8.1 Hundsun Trading PlatformEnterprise trading platform offered to brokerages and securities firms, covering order management, executio...8.0 Adanos Market Sentiment APIRESTful JSON API grouping five sentiment services (Reddit Stocks, X.com Stocks, Stock News, Polymarket Stoc...7.3 Iress QuantFeedQuantFeed is Iress's signature end-to-end ultra-low latency market data API. Built to deliver an unmatched ...7.2

Score breakdown

Frequency

71.9

log-scaled weighted occurrences

Breadth

7.5

spread across providers

Quality lift

36.9

mean composite of providers using it

Cohesion

35.9

strength of nearest seed neighbor

Where this tag comes from

Api tag131

Provider tag251

Openapi tag15

Openapi op tag105

Cohort brief

Auto-generated

The 275 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

275

all scored

Mean Kin Score

30.4

+9.7 vs catalog 20.7

Mean Agent Readiness

17.4

+7.7 vs catalog 9.7

Spread

0–73.7

median 33.2 · σ 18.1

How the 275 split by band

Exemplar 5Strong 17Developing 77Thin 66Emerging 52Minimal 58

Facet averages, against the whole catalog

Facet	This cohort	Catalog	Difference	Scored
Developer Ergonomics	33.9	17.9	+16	275
Contract Quality	30.7	17.5	+13.2	275
Discoverability	69	60.4	+8.6	275
Operational Transparency	19.5	11.3	+8.2	275
Access Clarity	26.3	22.3	+4	275
Contract Governance	9.9	6.4	+3.5	275

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)	33%	16%	+17
MCP server (first-party)	12%	7%	+5
Agent Skills	0%	0%	0
OAuth scopes	10%	9%	+1
Security	96%	88%	+8
Arazzo workflows	3%	2%	+1
Governance rules	19%	13%	+6

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 AlphaAI 73.7
2 Crypto.com 72.6
3 Kraken 70.6
4 Clear Street 67.4
5 Bullish 67.3
6 Ripio 65.5
7 ThetaData 65.2
8 Factset 64.8
9 Bloomberg 63.8
10 Alpaca 62.7

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Trading

Providers using this tag (275)

APIs with this tag (132)