Stax Labs
Build on Stax: API, MCP, and CLI | Stax
Build on the Stax engine your way. A live REST API, native MCP, and a CLI all reach the same backtest, screen, optimize, and deploy engine. Start with one command.
What users get
- API
- Live REST
- Agents
- Native MCP
- Terminal
- One-line install
The job it solves
Everything you need to build on Stax: a live REST API, native MCP for AI agents, and a CLI. One install, the full engine.
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.
Reach the Stax engine from code, an agent, or the terminal.
Backtest, screen, optimize, and deploy programmatically.
Install the Claude Code skill in one command.
Build tools and automations on top of Stax.
How it works
A practical path from an idea to evidence, then from evidence to practice.
- 1
Install the skill or grab an API key.
- 2
Choose your surface: REST, MCP, or CLI.
- 3
Run backtests and screens against the live engine.
- 4
Ship your own tools on top.
Three ways in, one engine behind them.
Live today at api.staxlabs.org.
Built for Claude Code and any MCP client.
Learn the concepts behind the tool
Start with a template
Questions people ask
How do I start building on Stax?
Install the Claude Code skill with one command, or create an API key and call the REST endpoints.
Is it the same engine as the app?
Yes. The API, MCP, and CLI all use the same engine, so your results match the product.
Ready to use build on stax: api, mcp, and cli | stax?
Start with a clear idea, test the rules, and keep the risk visible before the decision gets emotional.