--- title: "Alternatives to Fern for agents: Agent Ready HTML" description: "6 alternatives to Fern, each with one sourced difference on what an agent reads: initial HTML, llms.txt, markdown, JSON-LD and OpenAPI." canonical: https://agentreadyhtml.com/platforms/fern/alternatives/ site: "Agent Ready HTML" last_updated: 2026-11-04 section: "Platforms" --- # Alternatives to Fern for agents: Agent Ready HTML > 6 alternatives to Fern, each with one sourced difference on what an agent reads: initial HTML, llms.txt, markdown, JSON-LD and OpenAPI. Source: https://agentreadyhtml.com/platforms/fern/alternatives/ Site: Agent Ready HTML Last reviewed: 2026-11-04 # Alternatives to Fern for agent-readable content In short Fern lists 6 alternatives, among them ReadMe, Scalar, GitBook and others. Mintlify scores highest of them by share of the keys that apply, 15 of 16 against 14 of 16 for Fern. The widest gap is JSON-LD output, where Mintlify scores 1 and Fern 0 (mintlify.com). These are the other docs platforms in the rubric, plus any platform Fern 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. - **[Mintlify](https://agentreadyhtml.com/platforms/mintlify/)** Docs platform, 15 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](https://buildwithfern.com/learn/docs/changelog), read 4 November 2026. [Full comparison](https://agentreadyhtml.com/compare/fern-vs-mintlify/). - **[ReadMe](https://agentreadyhtml.com/platforms/readme/)** Docs platform, 13 of 16 ReadMe scores each project against the Agent-Friendly Docs spec inside its AI Discoverability panel; Fern documents agent directives prepended to every markdown page that point agents to .md URLs and llms.txt. [Source](https://docs.readme.com/main/docs/ai-discoverability), read 4 November 2026. [Full comparison](https://agentreadyhtml.com/compare/readme-vs-fern/). - **[Scalar](https://agentreadyhtml.com/platforms/scalar/)** Docs platform, 11 of 16 Scalar leaves hidden pages out of llms.txt and llms-full.txt; Fern leaves pages that fall back to default-language content out of locale indexes and serves custom llms.txt for the default locale only. [Source](https://buildwithfern.com/learn/docs/ai-features/llms-txt), read 4 November 2026. [Full comparison](https://agentreadyhtml.com/compare/scalar-vs-fern/). - **[GitBook](https://agentreadyhtml.com/platforms/gitbook/)** Docs platform, 11 of 16 GitBook scores 1 on llms.txt linking against 2 for Fern. The docs page links the files; a home page or header link by default is not documented. Not test-built: publishing needs a GitBook account. Score from the documentation page cited, read 2026-11-04. [Source](https://gitbook.com/docs/publishing-documentation/llm-ready-docs), read 4 November 2026. - **[Redocly](https://agentreadyhtml.com/platforms/redocly/)** Docs platform, 12 of 16 Redocly scores 1 on llms.txt linking against 2 for Fern. 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](https://redocly.com/docs/realm/ai-ready), read 4 November 2026. - **[Stoplight](https://agentreadyhtml.com/platforms/stoplight/)** Docs platform, 6 of 16 Stoplight scores 0 on llms.txt generation against 2 for Fern. 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. Fern itself: 14 of 16 on the rubric. [Read its profile](https://agentreadyhtml.com/platforms/fern/). Scores come from test builds and cited documentation read 4 November 2026; see the [method](https://agentreadyhtml.com/method/). ## Sources 1. [Ora: AgentReady launch post (rubric basis)](https://ora.ai/blog/agentready-launch?utm_source=agentreadyhtml.com&utm_medium=referral&utm_campaign=alternatives) https://ora.ai/blog/agentready-launch, read 4 November 2026 2. [Mintlify: documentation](https://www.mintlify.com/docs/ai/markdown-export) https://www.mintlify.com/docs/ai/markdown-export, read 4 November 2026 3. [ReadMe: documentation](https://docs.readme.com/main/docs/ai-discoverability) https://docs.readme.com/main/docs/ai-discoverability, read 4 November 2026 4. [Scalar: documentation](https://scalar.com/products/docs/configuration/llms-txt) https://scalar.com/products/docs/configuration/llms-txt, read 4 November 2026 5. [GitBook: documentation](https://gitbook.com/docs/publishing-documentation/llm-ready-docs) https://gitbook.com/docs/publishing-documentation/llm-ready-docs, read 4 November 2026 6. [Redocly: documentation](https://redocly.com/docs/realm/ai-ready) https://redocly.com/docs/realm/ai-ready, read 4 November 2026 7. [Stoplight: documentation](https://github.com/stoplightio/elements) https://github.com/stoplightio/elements, read 4 November 2026 Last reviewed 4 November 2026 Edition Crawl 2026-11-04 Page updated 2026-11-04 Method How the viewer reads a page, how a file is graded and how a platform is scored: [the method page](https://agentreadyhtml.com/method/).