Record entry · Auto

Facebook Marketplace

What is happening now

Nothing reported: the record holds no registered event and no claim that names this.

How well we know this

29 documents · 19 publishers · 17% contain a typed assertion · last evidence 7 Oct 2026

Gap: assertion coverage 0.172: about 83% of mentions carry no typed assertion

Added 1 Oct 2026Mentions 20Sources 14Days of coverage 12

Why this name is on the record

Facebook Marketplace was added automatically on 1 Oct 2026 after 20 mentions across 14 sources over 12 days. 45% of that coverage came from a single subject area.

Reported alongside Facebook Marketplace

Names most often reported alongside it; bigger circles and heavier lines mean more shared documents. A dashed circle has no page of its own yet.

Meta · 29 shared documents
AI · 17 shared documents
Buy · 16 shared documents · no page of its own yet
Muse · 12 shared documents
AI agent · 10 shared documents
OpenAI · 10 shared documents
Item · 10 shared documents
Google · 9 shared documents
Apple · 8 shared documents

For developers

GET https://sigb.ai/api/registry?slug=facebook-marketplace

{
  "slug": "facebook-marketplace",
  "state": "active",
  "detail": {
    "state": "active",
    "source": "ontology",
    "label": "facebook marketplace",
    "promotedAt": "2026-10-01",
    "category": "auto",
    "evidence": {
      "mentions": 20,
      "sources": 14,
      "days": 12,
      "concentration": 0.45,
      "standAloneShare": 1
    }
  }
}

The record behind this page, as data. The live response also carries the registry date and version.

Walk the record from Facebook Marketplace

Open where it comes from, follow a claim or a related name, and use the trail to come back. Every step says what it is, how it stands and when. Machines read the same record.