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Astral is an AI-powered running and marathon coaching platform that brings together athletes and their coaches. Whether you’re an athlete tracking your runs and following a personalized training plan, or a coach managing a team with AI-generated plans and real-time analytics, Astral gives you the tools to train smarter.

Athlete Quickstart

Set up your account, connect your devices, and start tracking your training today.

Coach Quickstart

Create your organization, add athletes, and generate your first AI training plan.

API Reference

Explore the full REST API to integrate Astral into your own applications.

Integrations

Connect Strava, Garmin, and Apple Health to sync your activities automatically.

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What you can do with Astral

AI Coach Chat

Chat with your AI coach in real time for personalized feedback and guidance.

Training Plan Generation

Generate complete multi-week training plans with AI, tailored to your athletes.

Activity Tracking

Log runs manually or sync automatically from your connected fitness apps.

Team Analytics

Visualize athlete progress, fitness trends, and training load across your team.

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Get started in 3 steps

1

Create your account

Sign up at app.nexrex.ai as an athlete or coach. Email verification is required.
2

Connect your devices

Link Strava, Garmin, or Apple Health to automatically import your training data.
3

Start training

Follow your assigned training plan, chat with your AI coach, and track your progress toward race day.