Pricing

Start free. Scale Studio with seats. Scale Hub with usage.

Studio

Free
$0
  • 1 project, 1 ontology
  • Visual canvas + validation
  • 5 AI Copilot credits/month
  • Public Hub publishing
Start free
Pro
$29/ seat / month
  • Unlimited projects + ontologies
  • AI Copilot (5 credits/month included)
  • Versioned saves + rollback
  • Multi-format export
  • Private Hub publishing
Upgrade to Pro
Teams
$49/ seat / month
  • Everything in Pro
  • Team projects + soft locking
  • Per-namespace ratings + reviews
  • Priority support
Get Teams

Hub

Public
Free
  • Unlimited public ontologies
  • Free MCP serving for public versions
  • Star + review the registry
  • Fork-to-Studio in one click
Browse Hub
Private
Includedwith Pro / Teams
  • Private + unlisted ontologies
  • Namespace ownership
  • Auditable publish history
Upgrade Studio
MCP serving
Free
  • Every public Hub version is a live MCP endpoint
  • Anonymous access for public ontologies
  • SSE + Streamable HTTP transports
  • Tools derived from the ontology manifest
Browse Hub

FAQ

What counts as an AI Copilot credit?
One credit covers a turn of conversation with the Studio Copilot. Free includes 5/month; Pro and Teams include 5 plus an option to buy more.
Is MCP serving billable today?
No. Every public Hub version has a live endpoint at mcp.ontoboom.com/o/@ns/slug@ver with no usage meter.
Can I serve a private ontology over MCP today?
No — private ontologies return 403 from the MCP endpoint. Public + unlisted ontologies serve to anyone.
Is there a free trial for Pro or Teams?
No free trial — the Free plan is the trial. You can publish public Hub ontologies, design with the visual canvas, and run real validation on Free. Upgrade when you need unlimited projects, private publishing, or team collaboration.
Do I need a paid plan to publish to Hub?
No. Public publishing is free, including the live MCP endpoint. Paid plans add private + unlisted publishing and bring private MCP access.
Can I self-host the MCP server?
Yes — for enterprise. Get in touch and we'll send you the on-prem packaging path.
Start free