Alpaca
./TradeCommission-free US stocks, options, and crypto brokerage API with a free paper-trading environment
MCPllms.txt
$ payment protocols
none documented — this service is not reachable over an agent payment protocol
$ agent access
authAPI Key
onboardingPartial — dashboard signup, then API key
tosExplicitly welcomes bots
webhooksNo
free tierYes
billingfree
#brokerage#stocks#options#crypto#paper-trading#mcp
https://alpaca.markets
// last verified 8/26/2026
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