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 |
|---|---|---|---|---|
| machins.co machins.co |
fail | 16 of 16 days | 0 of 16 days | no |
| maiiaconcierge.ai maiiaconcierge.ai |
warn | 16 of 16 days | 0 of 16 days | no |
| mailbox.bot mailbox.bot |
fail | 16 of 16 days | 0 of 16 days | no |
| matthiasmeyer.tech matthiasmeyer.tech |
warn | 16 of 16 days | 0 of 16 days | no |
| mcp.adotob.com mcp.adotob.com |
fail | 16 of 16 days | 0 of 16 days | no |
| mcp.buywhere.ai mcp.buywhere.ai |
fail | 14 of 16 days | 0 of 16 days | no |
| mcp.cpgknowledgegraph.ai mcp.cpgknowledgegraph.ai |
fail | 16 of 16 days | 0 of 16 days | no |
| mcp.fodda.ai mcp.fodda.ai |
fail | 16 of 16 days | 0 of 16 days | no |
| mcp.gsc-fleet.ai mcp.gsc-fleet.ai |
fail | 16 of 16 days | 0 of 16 days | no |
| mcp.gsc-marketplace.ai mcp.gsc-marketplace.ai |
fail | 12 of 16 days | 0 of 16 days | no |
| mcp.pantheon.run mcp.pantheon.run |
fail | 15 of 16 days | 0 of 16 days | no |
| mcp.usertold.ai mcp.usertold.ai |
warn | 16 of 16 days | 0 of 16 days | no |
| mdflow.cz mdflow.cz |
fail | 16 of 16 days | 0 of 16 days | no |
| mdiv.pl mdiv.pl |
fail | 16 of 16 days | 0 of 16 days | no |
| mdstudio.app mdstudio.app |
fail | 16 of 16 days | 0 of 16 days | no |
| memo.thorchain.org memo.thorchain.org |
fail | 16 of 16 days | 0 of 16 days | no |
| memory.sylex.ai memory.sylex.ai |
fail | 16 of 16 days | 0 of 16 days | no |
| mnemolog.com mnemolog.com |
fail | 16 of 16 days | 0 of 16 days | no |
| mobilitychain.kr mobilitychain.kr |
fail | 16 of 16 days | 0 of 16 days | no |
| molinoycata.com molinoycata.com |
fail | 16 of 16 days | 0 of 16 days | no |
| Macaroon Network api.macaroonnetwork.com |
fail | 18 of 18 days | 0 of 18 days | no |
| MACH Agent Lab Edge mach-agent-lab-edge.vercel.app |
fail | 12 of 18 days | 12 of 18 days | no |
| Machine Library spacefrontiers.org |
warn | 18 of 18 days | 0 of 18 days | no |
| MachineRealms machinerealms.com |
warn | 18 of 18 days | 18 of 18 days | no |
| Magic You Agentic Commerce Lab magic-you-agentic-commerce-lab.j-radom.chatgpt.site |
pass | 18 of 18 days | 18 of 18 days | no |
| Magician 7871bd4351e311.lhr.life |
fail | 0 of 18 days | 0 of 18 days | no |
| Magician 88ea779ee378b5.lhr.life |
fail | 0 of 16 days | 0 of 16 days | no |
| Magician 39c7590a1ee24b.lhr.life |
fail | 0 of 15 days | 0 of 15 days | no |
| Magician e8d0204da69fff.lhr.life |
fail | 0 of 13 days | 0 of 13 days | no |
| Magician 8d5defd49c99f6.lhr.life |
fail | 0 of 12 days | 0 of 12 days | no |
| Magician 351bc2052fd1f2.lhr.life |
fail | 0 of 10 days | 0 of 10 days | no |
| Magician 61009bd495dbab.lhr.life |
fail | 0 of 9 days | 0 of 9 days | no |
| Magician b5604f5a5b6f81.lhr.life |
fail | 0 of 7 days | 0 of 7 days | no |
| Magician 2dc36f5e6fbe81.lhr.life |
fail | 0 of 6 days | 0 of 6 days | no |
| Mailvett by CyberMax mailvett.cybermax-tools.workers.dev |
fail | 18 of 18 days | 0 of 18 days | no |
| makeup.land makeup.land |
fail | 18 of 18 days | 0 of 18 days | no |
| MandateShield Payment Authority Agent mandateshield.com |
fail | 18 of 18 days | 0 of 18 days | valid |
| Margaret's poems: commission a poem poems.lorepunk.ai |
warn | 18 of 18 days | 18 of 18 days | no |
| marginalia marginalia.polycode.co.uk |
fail | 7 of 18 days | 0 of 18 days | no |
| MarriageLicense.fyi marriagelicense.fyi |
fail | 6 of 6 days | 0 of 6 days | no |
| Marz Greta-Lock Network eqbuilder.dev |
fail | 18 of 18 days | 0 of 18 days | no |
| Match It Up NetworkBot matchitup.in |
fail | 18 of 18 days | 0 of 18 days | no |
| match.bot match.bot |
fail | 18 of 18 days | 0 of 18 days | no |
| match.bot clawdchat.ai |
fail | 18 of 18 days | 0 of 18 days | no |
| MCP Drift Observatory drift.getvda.ai |
fail | 18 of 18 days | 0 of 18 days | unverifiable |
| MCPDirectory mcpdirectory.fyi |
fail | 3 of 3 days | 0 of 3 days | no |
| Memcached + MongoDB + Redis Compose Generator memcached-mongodb-redis-compose-generator.getvda.ai |
fail | 18 of 18 days | 0 of 18 days | no |
| MemoryCareHomes memorycarehomes.fyi |
fail | 6 of 6 days | 0 of 6 days | no |
| Memwry memwry.servitor.workers.dev |
fail | 18 of 18 days | 0 of 18 days | no |
| Merchant-0 merchant-0.com |
fail | 18 of 18 days | 0 of 18 days | no |
| MERCURY Web Fetch network.mercury-hq.com |
fail | 18 of 18 days | 0 of 18 days | no |
| meridian-labs-two meridian-labs-site.regular-blizzard.workers.dev |
fail | 11 of 11 days | 0 of 11 days | no |
| Minds Ajar minds-ajar.mindsajar.workers.dev |
warn | 13 of 13 days | 0 of 13 days | no |
| MinIO + Postgres + Redis Stack Generator minio-postgres-redis-stack-generator.getvda.ai |
fail | 18 of 18 days | 0 of 18 days | no |
| MinIO + Postgres + Redis Stack Generator (Minio/Minio) redis-minio-postgres-stack-generator.getvda.ai |
fail | 18 of 18 days | 0 of 18 days | no |
| MinIO + Postgres Stack Generator postgres-minio-stack-generator.getvda.ai |
fail | 18 of 18 days | 0 of 18 days | no |
| MinIO + Redis Stack Generator redis-minio-stack-generator.getvda.ai |
fail | 18 of 18 days | 0 of 18 days | no |
| MinIO and Redis Storage Stack redis-minio-stack-generator-minio-minio.getvda.ai |
fail | 18 of 18 days | 0 of 18 days | no |
| Misfit Machine Agent misfitmediahouse.com |
warn | 18 of 18 days | 0 of 18 days | no |
| modelmarket.dev modelmarket.dev |
pass | 10 of 10 days | 10 of 10 days | no |
| Moirai Agents API moirailabs.com |
fail | 18 of 18 days | 0 of 18 days | no |
| MolTrust Trust Registry api.moltrust.ch |
warn | 18 of 18 days | 18 of 18 days | unverifiable |
| Money You're Owed catalog agent agent.moneyyoureowed.com |
warn | 18 of 18 days | 0 of 18 days | no |
| MoonCloser AI mooncloser-ai.floot.app |
fail | 18 of 18 days | 0 of 18 days | no |
| MoveHome.org Property Agent movehome.org |
fail | 18 of 18 days | 0 of 18 days | no |
| MRIPrices mriprices.fyi |
fail | 3 of 3 days | 0 of 3 days | no |
| MUJ428 Trust Reflex agents.muj428.com |
fail | 18 of 18 days | 0 of 18 days | no |
| Multi-Provider Schema Output Agent instructor-litellm-6af681.getvda.ai |
fail | 18 of 18 days | 0 of 18 days | no |
| MultiSandbox — Akira multisandbox.com |
warn | 18 of 18 days | 0 of 18 days | no |
| Muse stratly.us |
warn | 18 of 18 days | 18 of 18 days | no |
| MusedIn musedin.com |
fail | 18 of 18 days | 0 of 18 days | no |
| Mycelnet mycelnet.ai |
fail | 18 of 18 days | 0 of 18 days | no |
| MyDankTank Public Information Agent mydanktank.com |
warn | 18 of 18 days | 0 of 18 days | no |
| MySQL + Redis + Nginx Stack Generator mysql-redis-compose-generator-nginx.getvda.ai |
fail | 18 of 18 days | 0 of 18 days | no |
| MySQL + Redis Compose Generator mysql-redis-compose-generator.getvda.ai |
fail | 18 of 18 days | 0 of 18 days | no |
| MySQL + Redis Compose Generator (Adminer) mysql-redis-compose-generator-adminer.getvda.ai |
fail | 18 of 18 days | 0 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.