Alternatives to Mintlify for agent-readable content

These are the other docs platforms in the rubric, plus any platform Mintlify is compared with directly. Each carries one sourced difference. Where a head-to-head exists, the sentence is its verdict-neutral difference; otherwise it is the key where the two scores are furthest apart, with the evidence behind the alternative's score.

• GitBook Docs platform, 11 of 16
  Mintlify answers Accept: text/markdown on the page URL and advertises llms.txt in an HTTP Link header on every response; GitBook documents the .md suffix, llms.txt, llms-full.txt and a per-site MCP server, but not header negotiation or a Link header on its LLM-ready docs page. Source, read 4 November 2026. Full comparison.
• ReadMe Docs platform, 13 of 16
  ReadMe returns markdown 404s with agentTools front matter and redirects guessed URLs such as /docs.md to the matching llms.txt; Mintlify returns a markdown 404 with links to llms.txt, llms-full.txt and up to three related pages, and splits llms.txt above 100,000 characters. Source, read 4 November 2026. Full comparison.
• Docusaurus Framework, 7 of 16
  Docusaurus ships static HTML for every route but no llms.txt in core; docusaurus.io returned 404 for /llms.txt on 2026-11-04. Mintlify generates llms.txt, llms-full.txt and markdown twins by default. Source, read 4 November 2026. Full comparison.
• Fern Docs platform, 14 of 16
  Fern serves llms.txt for every navigation node (sections, versions, tabs, API references, changelogs) and accepts lang and excludeChangelog filters; Mintlify serves one root llms.txt that links split indexes under /_llms when it passes 100,000 characters. Source, read 4 November 2026. Full comparison.
• Cloudflare Markdown for Agents Edge or plugin product, 5 of 10
  Mintlify produces markdown from the docs source, with components rendered as labelled blockquotes; Cloudflare converts rendered HTML generically and appends JSON-LD in a fenced block. Source, read 4 November 2026. Full comparison.
• Redocly Docs platform, 12 of 16
  Redocly scores 1 on llms.txt linking against 2 for Mintlify. Linking from pages is not documented on the page read. Not test-built: the hosted Redocly product needs an account (the open CLI was built, see below). Score from the documentation page cited, read 2026-11-04. Source, read 4 November 2026.
• Scalar Docs platform, 11 of 16
  Scalar scores 1 on content in the initial HTML against 2 for Mintlify. Docs pages are served as HTML; the API reference component renders in the browser in some embeds. Not test-built: hosted Scalar Docs needs an account. Score from the documentation page cited, read 2026-11-04. Source, read 4 November 2026.
• Stoplight Docs platform, 6 of 16
  Stoplight scores 0 on llms.txt generation against 2 for Mintlify. No documented generator; none found on docs.stoplight.io. Not test-built: a Stoplight workspace needs an account. Score from the documentation page cited, read 2026-11-04. https://docs.stoplight.io/llms.txt (404 on the read date), read 4 November 2026.

Mintlify itself: 15 of 16 on the rubric. Read its profile. Scores come from test builds and cited documentation read 4 November 2026; see the method.