# MaxLink Bio > MaxLink Bio is Max SM's developer link hub: explore the portfolio, professional profiles, payment options and referral links of a Full-Stack Developer from Argentina. This is a personal link hub, not an API or a Vercel developer product. Public pages support HTML and Markdown through Accept negotiation. Read-only access needs no credentials. ## Content - [Max SM developer links](https://maxlink-bio.vercel.app/index.md): Public profile, portfolio, social profiles, payment destinations and referral links. ## Developer resources - [MaxLink Bio developer resources](https://maxlink-bio.vercel.app/docs/index.md): Supported representations, error behavior and public endpoints. ## Optional - [Sitemap](https://maxlink-bio.vercel.app/sitemap.xml): Canonical pages. - [Portfolio](https://maxsm.dev): Max SM's external portfolio.