Mintlify is an intelligent documentation platform that builds beautiful, fast developer docs and uses AI agents to keep them updated automatically as your code changes.
Mintlify powers documentation for thousands of API-first companies, handling more than 300 million visitors a year. Authors write in MDX, sync content from Git, or use the web editor, and Mintlify renders a polished site with an interactive API playground generated from your OpenAPI spec, semantic search, analytics and a custom domain. It is built for the agent era as much as for humans: sites ship with llms.txt files and MCP server support so AI assistants can ingest and cite your documentation accurately.
The AI layer is where Mintlify pulls ahead. An AI Assistant embedded in your docs answers reader questions from your content with citations. On higher plans, a writing agent and automations watch your codebase and propose documentation updates as pull requests, so docs stop drifting out of date the week after they are written. Access controls, preview deployments and multi-repo support make the same platform work for a startup’s first API reference and an enterprise’s full knowledge stack.
The Starter plan is free and includes the core platform, a custom domain, Git sync, the API playground and up to five editor seats, but no ongoing AI features. Pro costs $450/month billed annually ($540 monthly) with unlimited editor seats and 10,000 AI credits per month; extra credits cost $0.01 each. Enterprise is custom-priced with SSO, SCIM and SLAs. A 14-day trial with up to 5,000 credits lets teams test the AI features first.
API-first startups and enterprises whose documentation is part of the product experience. Hobby projects can stay on the free Starter plan indefinitely, but small teams should check whether the jump to Pro pricing fits their budget before relying on the AI features.