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Plato's Kallipolis MCP Server

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answering

Plato's Kallipolis is answering right now. Last checked 4 min ago. It exposes 6 tools.

Read-only MCP tools for AI agent discovery, structured resources, and NIULAI information.

The linked repository no longer exists on GitHub — it was deleted or made private.

Uptime history 63 days of history · worst day 98%
63 days agonow
100.0%
Uptime 24h
92 of 92 checks
6
Tools
read from the server
1091 ms
Response time
average over 24h
open, no key
Access
streamable-http

What changed 6

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 26 August 2026. No other catalogue keeps this.

8 Sep 2 tools appeared get_resource, search_resources
8 Sep 2 tools disappeared get_resource, search_resources
26 Aug 2 tools appeared compile_query_plan, get_growth_metrics

This one has been quiet for a while

Quiet is not dead — but it is worth knowing when it wakes up, or when someone else takes it over. We watch the repository and tell you either way.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 4 min ago.

run in your terminal
claude mcp add platos-kallipolis --transport http https://platoskallipolis.com/api/mcp
Settings → Connectors → Add custom connector, then paste this address
https://platoskallipolis.com/api/mcp
~/.codex/config.toml
[mcp_servers.platos-kallipolis]
url = "https://platoskallipolis.com/api/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "platos-kallipolis": {
      "url": "https://platoskallipolis.com/api/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "platos-kallipolis": {
      "type": "http",
      "url": "https://platoskallipolis.com/api/mcp"
    }
  }
}

Available tools 6

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

agents
search_agents
Search the public agent registry by capability and protocol. Preview data only.
compile
compile_query_plan
Normalize a public-data query into a typed evidence, freshness, latency, result, and cost plan. Compilation does not execute retrieval or contact providers.
growth
get_growth_metrics
Return enabled, partial, contract-only, and unavailable growth metrics with privacy and interpretation boundaries.
niulai
get_niulai_info
Return publisher-declared Base network, contract, claim, community-role, custody, and risk-boundary information for 牛来 (NIULAI).
resource
get_resource
Retrieve one complete prepared resource profile, including evidence-backed facts and primary-source provenance, by its stable resource ID.
resources
search_resources
Search 350 prepared structured resource profiles by category, keyword or declared source hostname without contacting external providers.

Endpoints

URLTransportStateLatencyChecked
https://platoskallipolis.com/api/mcp streamable-http answering 1361 ms 4 min ago

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Plato's Kallipolis — questions

Answers built from our own checks of this server.

What can Plato's Kallipolis do?
It exposes 6 tools, read directly from the server on our last check. Among them: compile_query_plan, get_growth_metrics, get_niulai_info, get_resource, search_agents, search_resources. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Plato's Kallipolis working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 1091 ms. The bar chart above shows every period we have measured.
Is Plato's Kallipolis still maintained?
The linked repository no longer exists on GitHub — it was deleted or made private. We show this because it changes what you can expect: an unmaintained server may keep answering for months and then stop without warning.
How do I connect Plato's Kallipolis?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Plato's Kallipolis need an API key?
No. Plato's Kallipolis completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 6 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Plato's Kallipolis?
It answers our handshake in 1091 ms on average, which is faster than 4% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.