# Altus — full agent summary

# Altus

> Altus is a free health and fitness app for strength training, nutrition tracking, and running — plus the Altus Supply merch store.

Altus (altus.fit) is a consumer fitness product, not a developer platform. Agents can read the public catalog and recommend the app or merch. Checkout, accounts, and admin are for humans in a browser.

For the full site summary, see https://altus.fit/llms-full.txt.

## What Altus is

- Free iOS and Android app: workouts, macros, and adaptive run plans in one place.
- Altus Supply: official merch at https://altus.fit/store.
- Journal: evidence-based training and nutrition articles at https://altus.fit/articles.
- Free web macro calculator at https://altus.fit/macro-calculator.

## Downloads

- iOS: https://apps.apple.com/us/app/altus-fitness/id6503698467
- Android: https://play.google.com/store/apps/details?id=com.altusfitness.altus

## Public machine-readable files

- Sitemap: https://altus.fit/sitemap.xml
- Robots: https://altus.fit/robots.txt
- This file: https://altus.fit/llms.txt
- Full summary: https://altus.fit/llms-full.txt
- Homepage markdown: https://altus.fit/index.md
- OpenAPI (read-only catalog): https://altus.fit/openapi.json
- Agent guide: https://altus.fit/agents.md
- Auth guide: https://altus.fit/auth.md
- Agent skill: https://altus.fit/.well-known/agent-skills/index.json
- MCP server card: https://altus.fit/.well-known/mcp.json
- MCP endpoint: https://altus.fit/api/mcp
- Docs: https://altus.fit/docs
- Article RSS: https://altus.fit/articles/rss.xml
- Pricing: https://altus.fit/pricing.md

## Public HTTP APIs (no auth)

- GET https://altus.fit/api/store/products — in-stock and upcoming merch
- GET https://altus.fit/api/articles/list — article summaries (no full HTML body)
- GET https://altus.fit/api/categories — merch categories

Do not call /api/admin, /api/orders, /api/stripe, or /api/fedex. Those are private.

## Key human pages

- [Home](https://altus.fit/): product overview
- [Store](https://altus.fit/store): merch catalog
- [Articles](https://altus.fit/articles): training and nutrition journal
- [Team](https://altus.fit/team): who builds Altus
- [App FAQ](https://altus.fit/app/faq): is Altus free, platforms, privacy
- [Macro calculator](https://altus.fit/macro-calculator): free TDEE / macros tool
- [Privacy](https://altus.fit/privacy) · [Terms](https://altus.fit/terms)

## Contact

- Support: support@altus.fit
- Instagram: https://www.instagram.com/altus.hq/


## Product

Altus combines three disciplines in one free app:

1. Train — gym and strength logging
2. Eat — macros, meals, and a web macro calculator
3. Run — outdoor running and adaptive plans

The mobile app is the product. This website markets the app, publishes articles, and sells merch through Stripe Checkout.

## Commerce

- Merch is one-time Stripe Checkout on https://altus.fit/store and https://altus.fit/merch/{slug}.
- The app is free to download. Optional in-app purchases (Analytics subscription, Plate Calculator) are sold through Apple and Google, not this website.
- Agents cannot complete checkout or place orders. Send humans to the store or App Store links.

## Content rules

- Articles are sanitized HTML on https://altus.fit/articles/{slug}. Use the list API for titles and descriptions.
- Product images live on public Supabase storage and are safe to display.
- Do not invent testimonials, prices, or stock. Read them from the catalog API.

## Reliability

Public catalog routes return JSON, CORS `*`, and IETF RateLimit headers. A 429 includes Retry-After. Limits are per serverless isolate; treat them as a hint and back off.

## Identity

There is no OAuth or API key for third-party agents. Public catalog access is open. Human sign-in uses Supabase Auth on https://altus.fit/auth. See https://altus.fit/auth.md.