Agent Ready HTML

Mintlify: vendor profile

In short

Mintlify sends markdown by Accept header, by user agent for assistants such as Claude-User, and at .md URLs. A plain fetch loses text from custom React components, which render in the browser only. The mintlify.site address stays crawlable after a custom domain goes live. Starter is free without the assistant; Pro is $450 a month on annual billing.

At a glance

standards.txt mintlify

llms-txt               = supports
markdown-negotiation   = supports
markdown-twin          = supports
initial-html           = partial
real-404               = supports
vary-accept            = no statement

4 supports, 1 partial or announced, 1 no statement.

Mintlify Docs platform

Mintlify is a hosted docs platform that server-renders pages, hands markdown to agents by Accept header, user agent or .md URL, and generates llms.txt, skill.md and schema.org JSON-LD for public docs sites.

Type
Docs platform
Headquarters
United States
Home page
www.mintlify.com, answered HTTP 200 on 2026-11-05
Last read
5 November 2026

What it does for this layer

  • Mintlify announced an $18M Series A led by Andreessen Horowitz on 2024-09-03, joined by Bain Capital Ventures and Y Combinator, and put its total raised at $21M. [primary source, 2024-09-03] source, read 5 November 2026.
  • Mintlify's Series B post of 2026-04-14 reports $45M at a $500M valuation, led by a16z and Salesforce Ventures, and says Mintlify now powers documentation for over 20,000 companies. [primary source, 2026-04-14] source, read 5 November 2026.
  • On 2026-03-03 Mintlify announced it is acquiring Helicone, the open source LLM observability platform and AI gateway, with Helicone's founders joining Mintlify in San Francisco. [primary source, 2026-03-03] source, read 5 November 2026.
  • Mintlify Pro lists at $450 a month billed annually or $540 billed monthly with 10,000 AI credits a month, while the free Starter plan carries no assistant, agent or Autopilot. [primary source, 2026-11-05] source, read 5 November 2026.
  • Mintlify's changelog of 2026-10-16 says custom components defined with export that only place their props into HTML now render on the server instead of popping in after load. [primary source, 2026-10-16] source, read 5 November 2026.
  • Mintlify's static export API pre-renders a project into a bundle of HTML, CSS and JavaScript for self-hosting with .html page URLs, and Mintlify keeps it to Enterprise plans. [primary source] source, read 5 November 2026.
  • Mintlify leaves the default <subdomain>.mintlify.site address live and crawlable after a custom domain is added, with no redirect or noindex, and warns that it can outrank the custom domain. [primary source] source, read 5 November 2026.
  • Turning on the Don't index project setting in the Mintlify dashboard makes llms.txt and /.well-known/llms.txt return 404 while llms-full.txt keeps loading. [primary source] source, read 5 November 2026.
  • Mintlify configures its 404 page under errors.404 in docs.json, where a redirect flag set to true sends missing URLs to the home page instead of the custom 404 page. [primary source] source, read 5 November 2026.
  • Mintlify's changelog of 2026-07-10 added auto-generated schema.org JSON-LD to docs pages, and the seo.organization object in docs.json names the publisher entity in that markup. [primary source, 2026-07-10] source, read 5 November 2026.
  • Mintlify also hands the markdown version to known AI agents such as Claude-User, ChatGPT-User and PerplexityBot on the normal page URL, while Googlebot and Bingbot keep getting HTML. [primary source] source, read 5 November 2026.
  • Mintlify's changelog of 2026-09-25 shipped WebMCP, which registers a site's MCP tools in the browser with no setup, on Pro and Enterprise plans only. [primary source, 2026-09-25] source, read 5 November 2026.
  • A curl GET of a made-up path under www.mintlify.com/docs on 2026-11-05 returned HTTP 404 text/html, so a Mintlify-hosted missing page carried a real 404 status by default. [observed, 2026-11-05] source, read 5 November 2026.
  • A markdown request to www.mintlify.com/docs/ai/markdown-export on 2026-11-05 came back from a Vercel server with vary: accept-encoding, Accept, User-Agent, matching Mintlify's Accept and user-agent switching. [observed, 2026-11-05] source, read 5 November 2026.

Products and plans

Plans and prices as the vendor's own pages showed them on the date read.
ProductWhat it isPriceAs ofSource
Mintlify StarterHosted docs with custom domain, web editor, MCP server and API playground for up to 5 editors.Free
Starter plan, $0 per month; AI features not included		2026-11-05source
Mintlify ProAdds the agent, assistant, Autopilot, preview deployments and unlimited editor seats.From USD 450
Pro, per month billed annually; $540 per month billed monthly; 10,000 credits a month, overage $0.01 per credit		2026-11-05source
Mintlify EnterpriseAdds automations, SSO and SCIM, static export, self-hosting and EU hosting.Quote on request
Enterprise, contact sales		2026-11-05source

Standards

The six standards this site tracks; no statement means the pages read said nothing.
StandardStatusWhat the vendor's pages saySource
llms-txtsupportsAuto-generated llms.txt is documented in the help center, which also notes that the Don't index setting makes it 404.source
markdown-negotiationsupportsThe markdown-export docs describe Accept-header negotiation for text/markdown and text/plain on every page URL.source
markdown-twinsupportsA documented .md route exists for each page and carries a noindex robots header.source
initial-htmlpartialPages are server-rendered, but custom React components imported from snippets render only in the browser.source
real-404supportsMintlify documents its 404 page and its suggested pages; errors.404.redirect set to true redirects to the home page instead. A made-up path returned 404 on 2026-11-05.source
vary-acceptno statementNo statement on Vary found in the markdown-export docs; a curl on 2026-11-05 saw vary: accept-encoding, Accept, User-Agent.source

Checks on its own site

Readings of mintlify.com, the vendor's own website, which describe that site and not the product.
ReadingResultDate
Home page requestHTTP 200; H1 in the initial HTML: yes; 523 words; 0 JSON-LD blocks2026-11-05
Request with Accept: text/markdownHTTP 200, text/markdown, Vary: rsc, next-router-state-tree, next-router-prefetch, next-router-segment-prefetch, Accept2026-11-05
/llms.txt at the host rootHTTP 200, text/plain, 6.6 KB, starts with an H12026-11-05
A made-up pathHTTP 4042026-11-05
Ora score, cached74, grade B2026-11-05
Cloudflare keyless scan47, L1 Basic Web Presence2026-11-05
Shared crawl rowoutside the ranked slice; home page HTTP 200; H1 in the HTML: yes; 671 words; JSON-LD types: none; answers markdown: yes; made-up path HTTP 404; llms.txt valid: yes2026-11-04

What it does not do

  • Custom React components pulled in from /snippets still render only after load, so a plain fetch of a Mintlify page misses their text. source, read 5 November 2026.

Ora

Mintlify sits on the AgentReady committee for docs, and Ora's launch post of the standard names mintlify.com/score as one of three public rankers that read the spec. Ora's launch post, read 5 November 2026.

Related pages on this site

Sources

  1. Mintlify: home page https://www.mintlify.com/, read 5 November 2026
  2. Mintlify raises $18M Series A led by Andreessen Horowitz https://www.mintlify.com/blog/series-a, read 5 November 2026
  3. Mintlify raises $45M Series B led by Andreessen Horowitz and Salesforce Ventures https://www.mintlify.com/blog/series-b, read 5 November 2026
  4. Mintlify acquires Helicone to redefine AI knowledge infrastructure https://www.mintlify.com/blog/mintlify-acquires-helicone, read 5 November 2026
  5. Pricing - Mintlify https://www.mintlify.com/pricing, read 5 November 2026
  6. Custom components flash or are missing from page source - Mintlify https://www.mintlify.com/docs/help-center/custom-components-flash-or-missing-from-page-source, read 5 November 2026
  7. Product updates - Mintlify https://www.mintlify.com/docs/changelog, read 5 November 2026
  8. Static export - Mintlify https://www.mintlify.com/docs/api/static-export/overview, read 5 November 2026
  9. Default mintlify.site subdomain indexed with custom domain - Mintlify https://www.mintlify.com/docs/help-center/default-subdomain-indexed-alongside-custom-domain, read 5 November 2026
  10. Fix llms.txt returning 404 while llms-full.txt works - Mintlify https://www.mintlify.com/docs/help-center/llms-txt-returns-404-but-llms-full-txt-works, read 5 November 2026
  11. Custom 404 page - Mintlify https://www.mintlify.com/docs/customize/custom-404-page, read 5 November 2026
  12. Markdown export - Mintlify https://www.mintlify.com/docs/ai/markdown-export, read 5 November 2026
  13. Ora: AgentReady launch post https://ora.ai/blog/agentready-launch, read 5 November 2026

Last reviewed 5 November 2026