Most SaaS docs become outdated the moment you ship them. Marcus builds changelog sites and documentation portals that update as fast as your product does—because your team won't dread touching them.
Plain language editing. No wrestling with Markdown formatting or Git workflows. Your PM can fix a typo between meetings. Your engineers can add a code example without context-switching out of their flow.
Drop in your feature description. Marcus formats it, generates the RSS feed, updates your public roadmap view, and sends the notification email. Five minutes from "we shipped" to "customers know."
Full-text search across every doc, changelog entry, and code snippet. Instant results. No third-party search widget eating your page speed budget or charging per query.
Drag-and-drop organization. Nested sections. Collapsible groups. Your docs structure matches how your users think about your product, not how your filesystem happened to evolve.
Syntax highlighting, one-click copy buttons, language tabs for multi-SDK examples. Optional OpenAPI viewer auto-generates endpoint docs from your spec file. No manual syncing, no stale curl commands.
Automatic theme switching. Code blocks stay readable. Your brand colors adapt. No designer time wasted tweaking 47 color values or debugging contrast ratios at 11 PM.
How it actually works
Your backend lead logs into Marcus, updates the affected endpoint documentation, adds a migration guide, and publishes a changelog entry—all before leaving for the weekend. The RSS feed updates. Early adopters see the notice in their readers. Monday's support queue stays quiet because everyone who needed to know, knew.
They search "webhook" in your docs. First result shows the exact JSON structure with collapsible nested objects. Code example includes the copy button. They paste it into their IDE, see the TypeScript types auto-suggested, and they're done. No support ticket. No Slack DM to engineering. No "let me get back to you on that."
If you've connected your OpenAPI spec, Marcus regenerates the endpoint reference automatically. New parameters show up. Deprecated fields get flagged. Response schemas stay current. The docs update themselves because they're reading the same source of truth your backend uses.
No file renames. No broken internal links. No regex find-and-replace across 80 Markdown files. You drag the sections into their new order. Marcus updates the sidebar, fixes the breadcrumbs, rewrites the search index. Takes eight minutes. Your intern could do it without breaking anything.
"We went from quarterly doc updates that nobody read to same-day changelog posts that our power users actually subscribe to. The difference is we stopped dreading the tooling."— Head of Product at a developer tools company, in a closed beta interview
Start with a changelog or full documentation portal—both update faster than your current setup.
Start building →