Stax Labs

Stax for Developers and Quants | API and MCP

The same engine that powers Stax is open to you. Run backtests, screen thousands of stocks, optimize, and deploy from your own scripts, or let an AI agent do it through MCP.

Get an API key Read the docs

A developer running Stax backtests from the terminal through the API.

What users get

Live at: api.staxlabs.org
Works with: Any MCP client
Endpoints: Backtest, screen, deploy

The job it solves

Drive the whole Stax engine from your code or your AI agent. Backtest, screen, optimize, and deploy through a live API and MCP.

Built for the actual investing workflow

Stax is strongest when a visitor can move from learning to building to testing without switching tools or losing the original idea.

Run backtests and screens from your own code.

Let an AI agent build and test strategies through MCP.

Optimize and deploy without leaving your workflow.

Build on the same engine the app uses.

How it works

A practical path from an idea to evidence, then from evidence to practice.

1
Create an API key in your Stax account.
2
Call the REST endpoints, or connect through MCP.
3
Backtest, screen, and optimize programmatically.
4
Deploy a strategy to paper or live.

A real, live API at api.staxlabs.org, not a waitlist.

Works with Claude Code or any MCP client out of the box.

The same engine as the product, so results match.

Learn the concepts behind the tool

What Is Backtesting?What Is Sharpe Ratio?What Is Max Drawdown?

Start with a template

Value Growth Strategy TemplateA stock strategy template for finding companies with profitable growth, reasonable valuation, and enough momentum to confirm market interest.Momentum Rotation Strategy TemplateA stock strategy template for rotating into stocks with stronger recent price momentum while keeping position and drawdown controls visible.Dividend Quality Strategy TemplateA stock strategy template for finding dividend-oriented companies with quality fundamentals instead of chasing yield alone.

Questions people ask

Is there a real API?

Yes. It is live at api.staxlabs.org with endpoints for backtesting, screening, optimizing, and deploying.

Can my AI agent use Stax?

Yes. Through MCP, Claude Code or any MCP client can build, test, and run strategies on Stax.

Ready to use stax for developers and quants | api and mcp?

Start with a clear idea, test the rules, and keep the risk visible before the decision gets emotional.

Get an API key Browse Templates