Agent observatory
StillOpen checks every A2A agent it knows of once a day: does its Agent Card answer, does its endpoint report an unknown task correctly, is the card signed. Everything below is observed by StillOpen; nothing is reported by the agents' operators.
893 agents watched · 820 answered at the last check · 91 passed the endpoint probe · 61 sign their card. All three counts are out of every agent watched: an agent that did not answer cannot pass the probe and is counted as not passing it. Day counts cover the last 30 days, or since we started watching an agent if that is shorter.
| Agent | Last check | Answered | Probe passed | Signed |
|---|---|---|---|---|
| 01Mind 01mind.net |
fail | 18 of 18 days | 0 of 18 days | no |
| 2s 2s.io |
fail | 18 of 18 days | 0 of 18 days | no |
| 3hometech-solutions 72.62.197.172:9908 |
fail | 0 of 18 days | 0 of 18 days | no |
| 3hometech-studio 3hometech.com |
fail | 18 of 18 days | 0 of 18 days | no |
| 828 Trust Commercial Sales Agent 828-multisource-sales-os.caoviedoc.workers.dev |
fail | 16 of 16 days | 0 of 16 days | no |
| 828 Trust · A2A Knowledge Agent 828-a2a-influencer.caoviedoc.workers.dev |
fail | 16 of 16 days | 0 of 16 days | no |
| 9bot Discovery Agent 9bot.com.br |
warn | 13 of 13 days | 0 of 13 days | no |
| 02654db2-21a1-4da3-ab5d-aff8e8fc10f3.agents.inhotel.io 02654db2-21a1-4da3-ab5d-aff8e8fc10f3.agents.inhotel.io |
fail | 16 of 16 days | 0 of 16 days | no |
| 199b3b07-036b-4dc5-b032-6276329465cc.agents.inhotel.io 199b3b07-036b-4dc5-b032-6276329465cc.agents.inhotel.io |
fail | 16 of 16 days | 0 of 16 days | no |
| 31d7d960-fc46-4cab-8c96-e7b823b45281.agents.inhotel.io 31d7d960-fc46-4cab-8c96-e7b823b45281.agents.inhotel.io |
fail | 16 of 16 days | 0 of 16 days | no |
| 402.bluerails.com 402.bluerails.com |
fail | 16 of 16 days | 0 of 16 days | no |
| 603738b7-7f75-45bb-af29-b323eb1e9757.agents.inhotel.io 603738b7-7f75-45bb-af29-b323eb1e9757.agents.inhotel.io |
fail | 16 of 16 days | 0 of 16 days | no |
| 6923db8f-de64-44f4-b5f5-f151875d2124.agents.inhotel.io 6923db8f-de64-44f4-b5f5-f151875d2124.agents.inhotel.io |
fail | 16 of 16 days | 0 of 16 days | no |
| 链盾助手 awc-agent-commons.wynnpay102.chatgpt.site |
warn | 18 of 18 days | 18 of 18 days | no |
Check any agent yourself with the A2A Card check; a card found there joins this list from the next daily run.