Can other agents read your agent card?

An agent introduces itself with a card published at /.well-known/agent-card.json. It is the only document another agent reads before deciding to call you. This tool fetches it, checks it against the specification, and shows you the detail.

Card unusable as it stands

An agent reading this card cannot act on it.

What the card declares

Name: Aevum A2A Protocol Router (Node 0)
Agent version: 0.1.0
Card shape: v1.0
Location: older location
Skills: 0
Response time: 500 ms

Findings

ErrorRequired field missing: capabilitiescapabilities
ErrorRequired field missing: defaultInputModesdefaultInputModes
ErrorRequired field missing: defaultOutputModesdefaultOutputModes
ErrorRequired field missing: supportedInterfacessupportedInterfaces
ErrorRequired field missing: skillsskills
NoteCard not signed: nothing attests that it comes from its authorsignatures

How to fix it

capabilitiesAn object declaring the optional A2A features the agent supports. Declaring them all false is a valid and honest answer.
```
"capabilities": {"streaming": false, "pushNotifications": false}
```
defaultInputModesThe media types the agent accepts, across all its skills.
```
"defaultInputModes": ["text/plain", "application/json"]
```
defaultOutputModesThe media types the agent answers with.
```
"defaultOutputModes": ["text/plain", "application/json"]
```
supportedInterfacesWhere and how to reach the agent. Since v1.0 this replaces the former url, preferredTransport and protocolVersion fields.
```
"supportedInterfaces": [{"url": "https://api.example.com/a2a/v1", "protocolBinding": "JSONRPC", "protocolVersion": "1.0"}]
```

skillsThe abilities of the agent. This is the only field another agent reads to decide what yours can do.

"skills": [{"id": "suggest-recipe", "name": "Suggest a recipe", "description": "Proposes a recipe from a list of ingredients.", "tags": ["cooking"]}]

Declared skills

No skill declared.

Show the result

This badge follows your readings: it changes when your card changes. Paste it in your README.

Markdown

[![A2A card](https://kopass.app/a2a/badge/aHR0cHM6Ly9hZ2VudGNhcmQuYWV2dW0ubmV0d29yaw.svg)](https://kopass.app/a2a/validator?url=https://agentcard.aevum.network)

HTML

<a href="https://kopass.app/a2a/validator?url=https://agentcard.aevum.network"><img src="https://kopass.app/a2a/badge/aHR0cHM6Ly9hZ2VudGNhcmQuYWV2dW0ubmV0d29yaw.svg" alt="A2A card" height="20"></a>

The rules come from the protocol's specification/a2a.proto file, where every required field is marked as such. Nothing is added.

Cards read here feed the KoPass daily reading: 225 agents followed, 218 of which answered on the last pass.

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