Give AI access, not control

Build capabilities that agents can use without handing over the keys to your system.

• Deterministic capabilities: Write TypeScript capabilities that define exactly what an agent can do. Send emails, manage calendars, and trigger workflows entirely from code you own.
• Two-way agent integration: Expose your capabilities natively via the Model Context Protocol (MCP) for Claude and Cursor, or route events directly to your own agents in code using .to(agent()).
• Secure by design: Agents can only execute the specific capabilities you expose. No arbitrary filesystem access. No unchecked shell commands. You maintain absolute authority.

Your first capability

Here's a simple capability that fetches user data and logs a greeting:

// capabilities/hello-world.ts
import { log, craft, simple, http } from "@routecraft/routecraft";

export default craft()
  .id("hello-world")
  .from(simple({ userId: 1 }))
  .enrich(
    http<{ userId: number }, { name: string }>({
      method: "GET",
      url: (ex) =>
        `https://jsonplaceholder.typicode.com/users/${ex.body.userId}`,
    }),
  )
  .transform((result) => `Hello, ${result.body.name}!`)
  .to(log());

Run it instantly without any setup:

npx @routecraft/cli run capabilities/hello-world.ts

This pattern (source, enrich, transform, destination) is the foundation of every RouteCraft capability.

Play Online

Try RouteCraft in your browser or a cloud environment:

GitHub Codespaces is recommended since RouteCraft is terminal-first and works best with full shell access.

Create a new project

Scaffold a complete RouteCraft project with all configuration:

npm create routecraft@latest my-app

Start the development server:

cd my-app
npm run dev

You should see your capabilities start and log output in your terminal.

What Can You Build?

Email Assistant

"Unsubscribe me from promotional emails" → Scans inbox, categorizes, unsubscribes automatically

Meeting Coordinator

"Move my meeting with John to 2pm" → Finds the meeting, updates time, notifies attendees

Travel Planner

"Book me a flight to NYC next Tuesday" → Searches flights, finds best option, presents details

Next steps