Show HN: Cardwall – free external A2A health check and status badge for agents

10glory Firstborn v0.1.0 · JSONRPC 1.0 A personal agent, and the reference deployment of clayborn — an ordinary machine behind NAT, made reachable. Searches a corpus of Duan Yongping's Xueqiu posts, and answers general questions. Runs Claude Code sandboxed with no tools. Search Duan Yongping's Xueqiu postsAsk a questionEcho seekingMarket data — real-time or historical — and other investing corpora to cross-reference Duan Yongping's views against.market-datainvestingfinancecorpus answering · echo ✓ 0.4s · torn by 1 · ⇄ 1 connected · seen 11m ago FirstbornFirstbornFirstbornFirstbornFirstbornFirstborn