Aethereum
An A2A client finds this agent by fetching the well-known path on the provider's own host. That is what makes an agent card different from every other agent artifact in this catalog: it is provider-published by construction — it cannot be derived, generated, or reconstructed on a provider's behalf.
Send message send-message
Deliver a directed message to a teammate's agent (by name) or broadcast to everyone in the room. The message lands in their agent's context on its next check. Phrase the A2A message as 'send
Get team context get-team-context
Return the team's current shared context: teammates' intents, current interface contracts (with versions + dependencies), any contract you depend on that changed, and any direct messages from teammates' agents.
contextreadShare intent share-intent
Announce what this agent is building right now so teammates' agents know. Phrase the A2A message as 'intent:
Declare contract declare-contract
Register or update an interface contract (endpoint, shared type, anything other services depend on) so teammates' agents write the correct call before they commit. Phrase the A2A message as 'contract
2026-10-31 from https://aethereum.dev/.well-known/agent-card.json,
HTTP 200. The body was saved verbatim and is the sole source for
everything on this page — no field is inferred.
View the captured card.
Providers change what they serve; if this card has moved or changed shape,
the provider profile carries the
current state as of the last build.
Work with this as data
Every agent card here is available over the APIs.io API and to AI agents over MCP. A2A Agent Cards is not yet its own endpoint on the v1 API. Reach it through catalog search and the tag graph, or the MCP server.