Services — the AI agent directory

Services in the directory
Service	Tags	Interfaces	Payments	Auth	Score
Alpaca Commission-free US stocks, options, and crypto brokerage API with a free paper-trading environment MCPllms.txt	brokerage+5	MCP+1	—	api-key, Markets	4/5
Kalshi CFTC-regulated event contract exchange with a documented REST and WebSocket API for algorithmic trading OpenAPI	prediction-market+3	OpenAPI	—	api-key, Markets	4/5
Manifold Play-money prediction market with a fully open API that explicitly invites trading bots	prediction-market+3	—	—	api-key, Markets	4/5
Polygon.io Stocks, options, forex, and crypto market data over REST and WebSocket, with a free self-serve API key MCPllms.txt	market-data+4	MCP+1	—	api-key, Markets	4/5
The Odds API Live and historical sports odds from global bookmakers over a REST API with a free self-serve tier	odds+3	—	—	api-key, Markets	4/5
Betfair Exchange Betting exchange with a documented JSON-RPC API for automated market data and bet placement	betting-exchange+3	—	—	api-key, Markets	3/5
Kraken Spot and futures crypto exchange with documented REST and WebSocket endpoints for order entry	crypto+3	—	—	api-key, Markets	3/5