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 |
|---|---|---|---|---|
| FastAPI Auth Token JWT Service fastapi-auth-token-jwt-service.getvda.ai |
fail | 18 of 18 days | 0 of 18 days | no |
| FastAPI Auth Token Service fastapi-auth-token-service.getvda.ai |
fail | 18 of 18 days | 0 of 18 days | no |
| FeedOracle feedoracle.io |
fail | 18 of 18 days | 0 of 18 days | no |
| Feedpeck by CyberMax feedpeck.cybermax-tools.workers.dev |
fail | 18 of 18 days | 0 of 18 days | no |
| Feeless402 Rail Quote feeless402.com |
fail | 18 of 18 days | 0 of 18 days | no |
| Fenn fenn.dakotawilliams.net |
fail | 5 of 5 days | 0 of 5 days | no |
| FertilityClinics fertilityclinics.fyi |
fail | 10 of 10 days | 0 of 10 days | no |
| fetch-price fetch-price.com |
fail | 18 of 18 days | 0 of 18 days | no |
| FIELD AI Community Gateway field.43.159.62.122.sslip.io |
warn | 18 of 18 days | 0 of 18 days | no |
| Fieldnotes agentindex-inbox.fly.dev |
warn | 18 of 18 days | 18 of 18 days | no |
| Fieldwright by CyberMax fieldwright.cybermax-tools.workers.dev |
fail | 18 of 18 days | 0 of 18 days | no |
| Figurewell API by CyberMax figurewell-api.cybermax-tools.workers.dev |
fail | 18 of 18 days | 0 of 18 days | no |
| Finch Agent Catalog finch-agent-catalog.finch-catalog-mcp.workers.dev |
fail | 10 of 10 days | 0 of 10 days | no |
| Finn-tannlege finn-tannlege.com |
fail | 18 of 18 days | 0 of 18 days | unverifiable |
| FlapJax flapjax.surge.sh |
fail | 0 of 18 days | 0 of 18 days | no |
| FleetHelp Support Agent fleethelp.ai |
fail | 18 of 18 days | 0 of 18 days | no |
| FLOCORE fo.flocore.tech |
fail | 18 of 18 days | 0 of 18 days | no |
| FlowFresh: South African export fruit reference data (information only) ff-sa-fruit-data.flowfresh.workers.dev |
fail | 15 of 15 days | 15 of 15 days | invalid |
| Flux · APEX on X1 & Arc apexfaucet.xyz |
warn | 16 of 18 days | 0 of 18 days | no |
| Fodda Research Agent www.fodda.ai |
fail | 18 of 18 days | 0 of 18 days | no |
| Folkmoot folkmoot.salukilabs.com |
fail | 15 of 18 days | 15 of 18 days | no |
| ForceDream api.forcedream.ai |
fail | 17 of 18 days | 0 of 18 days | unverifiable |
| ForeclosureListings foreclosurelistings.fyi |
fail | 10 of 10 days | 0 of 10 days | no |
| Fork fork.zone |
fail | 7 of 7 days | 0 of 7 days | no |
| FrameAnyPhoto frameanyphoto.com |
warn | 18 of 18 days | 6 of 18 days | no |
| FREIA — France Real Estate Intelligence Agent freia.jlv-labs.cloud |
pass | 18 of 18 days | 0 of 18 days | no |
| French4PR french4pr.com |
fail | 6 of 6 days | 0 of 6 days | no |
| Frontier Agent Marketing Company frontier-agent-market.thomasvergeres.chatgpt.site |
fail | 18 of 18 days | 0 of 18 days | no |
| FuelScout fuelscout.scalpstream.com |
warn | 18 of 18 days | 0 of 18 days | valid |
| Fund Structured Verification Agent fund-runtime-fixture.mrhino.chatgpt.site |
warn | 18 of 18 days | 0 of 18 days | no |
| FuneralCompare funeralcompare.fyi |
fail | 6 of 6 days | 0 of 6 days | no |
| fyi iwant.fyi |
fail | 18 of 18 days | 0 of 18 days | no |
| f60e25c6-26f5-430e-bf56-05eb29e216ca.agents.inhotel.io f60e25c6-26f5-430e-bf56-05eb29e216ca.agents.inhotel.io |
fail | 16 of 16 days | 0 of 16 days | no |
| fanfare.run fanfare.run |
fail | 16 of 16 days | 0 of 16 days | no |
| finestructure.ai finestructure.ai |
warn | 16 of 16 days | 0 of 16 days | no |
Check any agent yourself with the A2A Card check; a card found there joins this list from the next daily run.