Discovery plane
A2A Agent Card
Fetch and normalize a delegate agent's .well-known/agent-card.json before trusting it.
Live in the gateway today.
What it answers
What can this agent or service do?
A2A Agent Card sits in the discovery plane of the agent-interop stack. What can this agent or service do? AxioRank tracks it as one row in a coverage matrix that spans six planes, from discovery and identity to authorization, content permission, and commerce.
Plane
Discovery
Status
live
Direction
outbound
How AxioRank handles it
Governed, not just listed.
Live in the gateway today. Outbound: when the agents you run reach out to other agents and services.
More discovery protocols
Related protocols
Govern the whole agent stack
AxioRank verifies identities and capabilities across the agent ecosystem, from discovery to commerce. See the full coverage matrix, machine-readable.