API for Stock, Options, Crypto Trading & more

Alpaca's easy to use APIs allow developers and businesses to trade algorithms, build apps and embed investing into their services.

Trade with algorithms, connect with apps, and build financial apps with our easy to use APIs.

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Trading dashboard in web browser
Trading on mobile device

Trusted by millions of traders and hundreds of fintechs and institutions

SBI Holdings
Bitso
Dime
Sarwa
eToro
Spaceship
Kraken
Derayah
Backed
Midas
Ondo

Product Launches

See our latest releases that expand access, improve execution, and give you more ways to build and trade with Alpaca.

Start Trading Start Building

Serving Algo Traders and Quant Funds

$0

Borrow fees on ETB 5,000+ Easy-to-Borrow (ETB) securities available

99.99%

System Uptime As of January 2026

1.5ms

Order processing Powered by Alpaca's OMS v2
Brokerchooser Best Broker for Algorithmic Trading Received December 2025
  • Easy to Use, Developer-First API

    SDKs are available in Python, .NET/C#, Go, Node, and more

  • Backtest with Market Data

    Test your strategy in paper before deploying with free and advanced market data

  • Commission Free

    Using Trading API can make stock and options trading commission-free

  • OAuth Integration

    Easily connect and use apps, algo bots, and platforms like TradingView

  • Margin and Short Selling

    Run long/short or market neutral strategies with up to 4X intraday & 2X overnight buying power

  • Alpaca Clearing

    Alpaca Securities LLC (dba "Alpaca Clearing") is a member of FINRA and SIPC

Licensed, secure and fully self-clearing

Self-Clearing Operations

We clear and custody as members of DTCC, FICC, and OCC to provide trade processing, settlement, and security at reduced costs for our global partners.

Regulated & Protected

We're a FINRA-regulated entity with SIPC protection up to $500,000 per customer (cash sub-limits apply) and optional excess coverage where applicable.

Security & Privacy by Design

We adhere to the highest standards in security and privacy protection: ISO 27001:2022 certified, SOC 2 Type II controls, MFA, GDPR, and ICO standards.

Digital Asset Compliance

Our crypto offerings* are through our registered Money Services Businesses (MSB) with (FinCEN) (NMLS # 2160858) and Digital Asset Businesses (Registration number 208648 B)

Institutional Backing for Scalable, Global Growth

As of our recent Series C, we’ve raised over $170 million from top-tier investors.
portage
spark-capital
tribe-capital
social-leverage
horizons-ventures
unbound
derayah
sbi-holdings
elefund
y-combinator

Easily build and scale today with Alpaca

"Broker API allows us to build the best trading experience for our users and we are excited to be a part of Alpaca's journey."

Egem Eraslan, Founder and CEO at Midas

"Alpaca's Broker API help our users invest in US markets and keep more money in their pockets."

Chattrin (Joe) Laksanabunsong, CPO at Dime!

"Before Alpaca, integrating with a broker would have required a significantly higher amount of dev resources and time. Alpaca's technology has significantly reduced how cumbersome of a process it is."

Benjamin Rollert, CEO and Co-Founder at Composer

"Working with Alpaca allows us to tokenize US stocks and ETFs with the speed, accessibility, and programmability of blockchain for these global investors."

Ian De Bode, Chief Strategy Officer at Ondo Finance

"There are service providers that tell you, ‘this is what we have, take it or leave it.’ Not Alpaca. They listen to us. They understand the region well. They're helping us offer the best possible products to our clients. I cannot say anything but good things about Alpaca."

Abdullah Alotaibi, Co-Founder and Deputy CEO of Fintech Brokerage at ZAD

"Alpaca offered the APIs, compliance framework, and product suite we needed. They didn’t just sell us a box—they gave us a platform to innovate on. Their team really took the time to understand our market, our users, and our vision, leading to a stronger product."

Daniyar Nurstultan, CEO and Founder at Investlink

"Alpaca's Broker API help our users invest in US markets and keep more money in their pockets."

Chattrin (Joe) Laksanabunsong, CPO at Dime!

"Working with Alpaca allows us to tokenize US stocks and ETFs with the speed, accessibility, and programmability of blockchain for these global investors."

Ian De Bode, Chief Strategy Officer at Ondo Finance

"Alpaca offered the APIs, compliance framework, and product suite we needed. They didn’t just sell us a box—they gave us a platform to innovate on. Their team really took the time to understand our market, our users, and our vision, leading to a stronger product."

Daniyar Nurstultan, CEO and Founder at Investlink

"Broker API allows us to build the best trading experience for our users and we are excited to be a part of Alpaca's journey."

Egem Eraslan, Founder and CEO at Midas

"Before Alpaca, integrating with a broker would have required a significantly higher amount of dev resources and time. Alpaca's technology has significantly reduced how cumbersome of a process it is."

Benjamin Rollert, CEO and Co-Founder at Composer

"There are service providers that tell you, ‘this is what we have, take it or leave it.’ Not Alpaca. They listen to us. They understand the region well. They're helping us offer the best possible products to our clients. I cannot say anything but good things about Alpaca."

Abdullah Alotaibi, Co-Founder and Deputy CEO of Fintech Brokerage at ZAD