Built for modern algo traders

One API For All Your Research

One institutional-grade API for market data, developer tooling, and execution infrastructure. Research ideas, build strategies, and trade at scale.

$ curl -X POST https://api.clearstreet.com/v1/orders \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "symbol": "AAPL",
    "side": "buy",
    "quantity": 100,
    "order_type": "market"
  }'''¶
{
  "orderId": "ORD-2026-04-15-5678",
  "status": "FILLED",
  "avgPrice": 172.45
}

Research

Fundamental Data

News & Sentiment

Omni AI Assistant

Advanced Screeners

Develop

Easy-to-consume API

Multi-language SDKs

OpenAPI Specifications

Comprehensive Guides

Trade

Order Management System

Pre-trade Risk Controls

Margin & Shorting

Multi-asset Support

Algorithmic Routes

Research with More Context

Leverage fundamental data, real-time news, and AI-powered insights to make informed decisions. Our Omni AI assistant helps you discover opportunities and validate ideas faster.

10,000+ data points
AI-powered insights
Real-time news feeds

Develop with Modern Tooling

Build trading strategies with our developer-first API. Access comprehensive SDKs, OpenAPI specs, and detailed documentation designed for rapid iteration and testing.

RESTful APIs
Python, Java, JS, Go SDKs
Complete documentation

Trade with Institutional Confidence

Execute at scale with pre-trade risk controls, advanced order types, and direct market access. Benefit from institutional-grade infrastructure built for performance and reliability.

Sub-millisecond execution
Pre-trade risk engine
Multi-asset support

Trade How You Want

Access our institutional-grade infrastructure through REST APIs, native SDKs, or connect your AI assistant via MCP.

REST API

Clean, well-documented HTTP endpoints for all trading operations and data access.

Multi-language SDKs

Native Python, JavaScript, and Go SDKs with full type safety and IntelliSense support.

MCP Server

Connect Clear Street to Claude, Gemini, or your favourite AI assistant via Model Context Protocol.

Find Out More

Python code snippet showing how to place a market order to buy 100 shares of AAPL using the algotrader Client API.

Common Questions
Simple Answers

Who is this API built for?

Experienced traders, systematic investors, developers looking for best in class APIs for research, development, and trading.

Which asset classes can I trade through the API?

Currently we support trading equities and options through the API but we are actively adding additional asset classes which include futures, crypto, and fixed-income so stay tuned.

What order types do you support through the API?

We support market, limit, stop, stop limit, trailing stop and trailing stop limit orders. Additionally we allow Algo strategies like TWAP, VWAP, and DMA.

What AI tools do you offer?

You can leverage Clear Street proprietary Omni AI assistant or bring your own like Claude, Gemini and Chat by connecting to Clear Street's MCP server.

How can I get started?

Click the sign up button and generate your API keys through the UI to get started developing.

Build Smarter. Trade Faster.

Join thousands of algo traders using our platform to research, develop, and execute strategies at institutional scale.

Products and services are offered by Clear Street LLC as a Broker Dealer member FINRA and SIPC and a Futures Commission Merchant registered with the CFTC and member of NFA.
Clear Street UK Limited is authorised and regulated in the United Kingdom by the Financial Conduct Authority and is a Category 1 member of the London Metals Exchange.
Additional information about Clear Street LLC is available on FINRA BrokerCheck, including its Customer Relationship Summary and NFA BASIC | NFA (futures.org).

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