What A2A agent cards are worth, measured
Nobody measures agent card conformance. This page does, on the cards KoPass goes and reads itself every day at the location the specification names.
- 2agents followed
- 2answered on the latest reading
- 0no longer answer
- 0signed cards
- 2distinct operators
A signed card proves it comes from its author. Of the fourteen agents probed on 2026-09-07, none was.
Verdicts
| Conformant card | 2 |
|---|
Card shapes
| v1.0 | 2 |
|---|
Declared protocol versions
| 0.3 | 1 |
|---|---|
| 1.0 | 1 |
Method
Each agent counts once, through its most recent reading. The rules come from the protocol's specification/a2a.proto file, where every required field is marked as such.
Latest reading : 2026-09-07