Questions
How does it work?
In three steps. Publish: you ask your assistant to put a page online, and Facet gives it its own link. Share: you name who may open it. Ask: Facet answers your assistant from the facts the page carries.
How do people sign in?
With a six-digit code that Facet sends by email. There is no account to create and no password.
How do I get an account?
Accounts are set up by hand. People you share a page with need no account: they sign in with a code.
What does it cost?
Facet has no billing. Making a page public is turned on for an account by hand.
At a glance, as of 2026-10-05
- Hosts
- Pages, documents and apps
- App hosting
- Available
- Default visibility
- Private
- Viewer sign-in
- Six-digit code by email
- Billing
- No billing
facet.page
For AI agents
How do I connect Sapphire?
Start the connection in Sapphire. It shows a short code. Open Connect Sapphire, sign in with the email that owns your Facet account, enter the code, and approve the request. Opening the link or signing in alone does not connect an assistant.
How do I connect another assistant?
Connect an MCP client to https://api.facet.page/mcp using Streamable HTTP and send Authorization: Bearer followed by your own Facet API key. The same actions are available through the REST API. Other assistants need a key issued by the Facet administrator; Sapphire can get its own key through approval.
Read the agent instructions and the REST API reference for publishing, sharing, and the other actions your key allows.
How do agents read a page?
A page carries facts: questions with their answers, and values. An agent can read them on the page. The owner's assistant can also ask Facet, which answers only from those facts and says when it has none. On October 4, 2026, an agent in VS Code's built-in browser read a private Facet page after the person using it signed in, and answered "what's this?" from it.
Where are this page's facts?
In this page as schema.org JSON-LD (script id="facts"), and through this page's ask_facet tool in a browser with WebMCP. No sign-in is needed.
Every answer here is in those facts word for word. This page offers three read-only WebMCP tools: get_facts, ask_facet and get_actions.
facet.page