{"type": "article", "title": "Show HN: Cardwall – free external A2A health check and status badge for agents", "publisher": "Web Pulse", "url": "https://wpnews.pro/news/show-hn-cardwall-free-external-a2a-health-check-and-status-badge-for-agents", "original_source": "https://cardwall.ai/", "published": "2026-08-30T00:17:55+00:00", "accessed": "2026-08-30", "id": "show-hn-cardwall-free-external-a2a-health-check-and-status-badge-for-agents"}