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Onto

Serves website content as clean markdown to AI agents while keeping the original page unchanged for humans.

KnowledgeAPIAgents
buildonto.dev ↗XLaunched on Product Hunt · 2026-09-26
At a glanceswept 2026-10-10

24 linking domains

Emerging

For
AI agents and their builders needing to read web pages as clean markdown
Price
Free plan · From $9/mopricing page, read 2026-09-26 ↗
Trial & discounts
30-day free trialpricing page ↗
Activity
Actively maintainedsite updated 3 weeks ago
Company
Domain since 2026domain registered
Runs as
API
AlternativesSet it up for my teamIs Onto yours? Claim the card →
What people do with itread off buildonto.dev on 2026-09-26
  • serve clean markdown to AI agents visiting your website
  • read pricing pages and other URLs as structured markdown for agents
The companyeach fact with its source · read 2026-09-26
Your datawhat they publish, each line with its page · read 2026-10-10

These are Onto's own statements, read from its pages. We did not audit them. A line that is missing was not found on the pages we read; it does not mean the practice is absent.

How a program reaches itfound, not claimed · read 2026-10-11

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.

Alternatives in Knowledgeby use, among tools still maintained

Figure and bar: visits/mo, estimate · year: online since

All Knowledge tools →

Questions this page answers
  • What is Onto?

    Serves website content as clean markdown to AI agents while keeping the original page unchanged for humans. It is listed in the Atlas under Knowledge.

  • Who is Onto for?

    AI agents and their builders needing to read web pages as clean markdown

  • How much does Onto cost?

    Onto has a free plan; paid plans start at $9/mo, per its pricing page on 2026-09-26.

  • Is Onto free?

    Yes, Onto has a free plan, per its pricing page on 2026-09-26.

  • Do people use Onto?

    Emerging.

  • Is Onto still maintained?

    Actively maintained: site updated 3 weeks ago.

  • Is Onto safe?

    We do not audit vendors. What Onto publishes, read 2026-10-10: SOC 2 Type II, ISO 27001, GDPR, CCPA stated on its security page.

  • Does Onto have a free trial?

    Yes, a 30-day free trial, per its pricing page (2026-10-10).

  • What are alternatives to Onto?

    In Knowledge, by use: Kapa AI, Web Anatomy, Monkt, Quercle, Demoloop, MyCrystal.

Not quite it? Describe the job

beta

Five tools from the Atlas that fit it, each judged against what you wrote.

How we read a tool

No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.

  • Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
  • Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
  • Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
  • The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.

How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.