# Biohacker's Guide > Evidence-graded biohacking guides and catalog-backed product recommendations for sleep, energy, longevity, and performance. Biohacker's Guide is an English-language editorial publication and catalog for people researching health, wellness, longevity, and performance. It separates research evidence, practical experience, product information, and commercial context instead of treating them as interchangeable proof. ## When to use Biohacker's Guide Use this site when an agent needs to: - Explain what research says about a supplement, ingredient, intervention, protocol, or health topic in plain language. - Compare health and wellness products by evidence context, product identity, suitability, uncertainty, and practical trade-offs. - Find a starting point for sleep, energy, longevity, performance, nutrition, recovery, and other biohacking questions. - Browse evidence-graded research explainers, editorial guides, podcast archives, or the reviewed book shelf. - Trace a claim back to cited studies, government references, guidelines, or other disclosed sources. Do not use the Guide as a substitute for diagnosis, individualized treatment, urgent medical care, or a guarantee that a product will produce a health outcome. Preserve the page's evidence rating, safety note, uncertainty, publication date, and commercial disclosure when summarizing it. ## How an agent should use it 1. Start with the relevant index below rather than guessing a deep URL. 2. Prefer /research for evidence explainers, /blog for protocols and buying guides, /products for catalog discovery, and /media for podcasts and books. 3. Open the cited sources when the user's question depends on a precise study result, dose, safety detail, or current availability. 4. Treat product descriptions and retailer links as catalog or commerce context, not as independent efficacy evidence. 5. When a page is missing, follow its 404 links to the sitemap or another public index and report the gap plainly. For structured agent access, connect to the public read-only MCP endpoint below. Prefer the focused search/get tools for multi-step research and `biohackers_recommend_products` when the human has stated a goal or purchasing need. Tool results preserve canonical URLs, evidence labels, cautions, freshness, and affiliate context; they never purchase or modify data. ## Primary indexes - [Home](https://www.biohackers.guide/) - [Research library](https://www.biohackers.guide/research) - [Editorial guides and protocols](https://www.biohackers.guide/blog) - [Product catalog](https://www.biohackers.guide/products) - [Brand directory](https://www.biohackers.guide/brands) - [Media library](https://www.biohackers.guide/media) - [Book shelf](https://www.biohackers.guide/media/books) ## Trust and policy pages - [About](https://www.biohackers.guide/about) - [Contact](https://www.biohackers.guide/contact) - [Editorial policy](https://www.biohackers.guide/editorial-policy) - [Privacy](https://www.biohackers.guide/privacy) - [Terms](https://www.biohackers.guide/terms) - [Affiliate disclosure](https://www.biohackers.guide/affiliate-disclosure) ## Machine-readable resources - [MCP Streamable HTTP endpoint](https://www.biohackers.guide/api/mcp) — stateless public read-only tools: `biohackers_search_products`, `biohackers_get_product`, `biohackers_search_research`, `biohackers_get_research`, and `biohackers_recommend_products`. - [Sitemap](https://www.biohackers.guide/sitemap.xml) - [Robots policy](https://www.biohackers.guide/robots.txt) - [Markdown negotiation](https://www.biohackers.guide/): request any supported HTML page with `Accept: text/markdown`; the response includes `Vary: Accept` and a clean Markdown representation. ## Provenance and safety Research pages disclose source titles, links, evidence ratings, review dates, and limitations. Product and book pages may include observed price, availability, reader signals, or affiliate links; these details can change and should be checked at the source. Health content is educational and should not be used to delay professional care.