{
  "topic": {
    "slug": "opened-sign-up",
    "title": "Startups that closed their waitlist and opened sign-up",
    "rule": "The homepage had a waitlist at the previous check and now offers sign-up instead.",
    "record": "https://startuphistory.org/t/opened-sign-up"
  },
  "as_of": "2026-11-09",
  "summary": "In Q4 2026 (to 9 November 2026), 3 startups closed their waitlist and opened sign-up, out of 1,797 with at least two captures in the archive that quarter. These are observations in the archive, not a market-wide rate. Coverage differs by quarter.",
  "quarters": [
    {
      "quarter": "2026-Q4",
      "companies": 3,
      "checked": 1797
    },
    {
      "quarter": "2026-Q3",
      "companies": 0,
      "checked": 815
    },
    {
      "quarter": "2026-Q2",
      "companies": 0,
      "checked": 168
    },
    {
      "quarter": "2026-Q1",
      "companies": 1,
      "checked": 401
    },
    {
      "quarter": "2025-Q4",
      "companies": 1,
      "checked": 61
    },
    {
      "quarter": "2025-Q3",
      "companies": 0,
      "checked": 499
    }
  ],
  "pagination": {
    "page": 1,
    "per_page": 200,
    "total": 3,
    "pages": 1,
    "next": null
  },
  "changes": [
    {
      "company": "Shortcut Labs (Flic)",
      "record": "https://startuphistory.org/c/flic.io",
      "summary": "Closed its waitlist and opened sign-up.",
      "between": {
        "from": "2026-11-05T14:22:34.376Z",
        "to": "2026-11-06T17:00:12.815Z"
      },
      "counted_in": "2026-Q4",
      "evidence": "https://flic.io/",
      "evidence_kind": "live_capture"
    },
    {
      "company": "Antinuous",
      "record": "https://startuphistory.org/c/antinuous.com",
      "summary": "Closed its waitlist and opened sign-up.",
      "between": {
        "from": "2026-11-05T11:17:22.851Z",
        "to": "2026-11-06T14:24:16.449Z"
      },
      "counted_in": "2026-Q4",
      "evidence": "https://antinuous.com/",
      "evidence_kind": "live_capture"
    },
    {
      "company": "Agent Relay",
      "record": "https://startuphistory.org/c/agentrelay.com",
      "summary": "Closed its waitlist and opened sign-up.",
      "between": {
        "from": "2026-10-07T16:50:29.000Z",
        "to": "2026-11-04T09:43:14.994Z"
      },
      "counted_in": "2026-Q4",
      "evidence": "https://agentrelay.com/",
      "evidence_kind": "live_capture"
    }
  ],
  "method": {
    "version": "messaging-v1",
    "description": "https://startuphistory.org/method"
  },
  "license": "CC-BY-4.0",
  "cite": "StartupHistory, “Startups that closed their waitlist and opened sign-up”, https://startuphistory.org/t/opened-sign-up (accessed 9 November 2026)"
}