Plato's Kallipolis
REMOTE · PLATOSKALLIPOLIS.COM
Read-only MCP tools for AI agent discovery, structured resources, and NIULAI information.
Available components
Last scanned (2 hours ago)
Scores higher than 85% of remote servers
Reachable. Last reached 5 Nov 2026.
Category Search and Retrieval
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security74
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability78
- 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 549 tokens (~49/item across 11 items; 6 tools + 5 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage76
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 14% of tool parameters carry a description.Partial
- Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 6 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 8 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities60
- Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28. See how to fix → Fail
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 28 Sept 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 25 Sept 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 24 Sept 26 0
- Stability: 0.97 → pass security
- 9 Sept 26 0
- The server rewrote its instructions, which are the text every model session reads security
- Schema quality: 33 → 49 ▼ functional
- New tool “get_resource” functional
- New tool “search_resources” functional
- 27 Aug 26 0
- Schema quality: 30 → 33 ▼ functional
- Tool coverage: 50% → 11% ▼ functional
- New resource “Growth Measurement State” functional
- New resource “Query Planner Contract” functional
- New tool “compile_query_plan” functional
- New tool “get_growth_metrics” functional
- 26 Aug 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 25 Aug 26 0
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 5 Nov 2026 · Probed https://platoskallipolis.com/api/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=platoskallipolis.com | CN=WE1,O=Google Trust Services,C=US | 23 Oct 2026 | 21 Jan 2027 | ECDSA 256 | ECDSA-SHA256 | b8ddfa2208f5752713eb13f19c1b57df |
| SANs: platoskallipolis.com | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of platoskallipolis.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| platoskallipolis.com. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://platoskallipolis.com/api/mcp | Verified | 200 | |
| http (plaintext) | http://platoskallipolis.com/api/mcp | HTTPS enforced | 302 | https://platoskallipolis.com/api/mcp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
compile_query_plan Compile a Public Query Plan ~87
Normalize a public-data query into a typed evidence, freshness, latency, result, and cost plan. Compilation does not execute retrieval or contact providers.
| Name | Type | Req | Description |
|---|---|---|---|
| evidence | object | – | – |
| freshness | object | – | – |
| intent | string | yes | – |
| limits | object | – | – |
| output | object | – | – |
| policy | object | – | – |
| sources | array | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| executionAvailable | boolean | yes | – |
| plan | object | yes | – |
| planId | string | yes | – |
| provenance | object | yes | – |
| schema | string | yes | – |
| state | string | yes | – |
No examples provided.
get_growth_metrics Get Growth Measurement State ~27
Return enabled, partial, contract-only, and unavailable growth metrics with privacy and interpretation boundaries.
Input schema present but exposes no named parameters.
| Name | Type | Req | Description |
|---|---|---|---|
| interpretation | object | yes | – |
| metrics | object | yes | – |
| privacy | object | yes | – |
| schema | string | yes | – |
No examples provided.
get_niulai_info Get NIULAI Community Asset Information ~40
Return publisher-declared Base network, contract, claim, community-role, custody, and risk-boundary information for 牛来 (NIULAI).
Input schema present but exposes no named parameters.
| Name | Type | Req | Description |
|---|---|---|---|
| contracts | object | yes | – |
| exclusions | array | yes | – |
| network | object | yes | – |
| provenance | object | yes | – |
| roles | array | yes | – |
| schema | string | yes | – |
| symbol | string | yes | – |
No examples provided.
get_resource Get a Kallipolis Resource ~38
Retrieve one complete prepared resource profile, including evidence-backed facts and primary-source provenance, by its stable resource ID.
| Name | Type | Req | Description |
|---|---|---|---|
| resourceId | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| boundaries | object | yes | – |
| citation | object | yes | – |
| data | object | yes | – |
| provenance | object | yes | – |
| schema | string | yes | – |
No examples provided.
search_agents Search Kallipolis Agents ~40
Search the public agent registry by capability and protocol. Preview data only.
| Name | Type | Req | Description |
|---|---|---|---|
| capability | string | – | Capability identifier or substring |
| protocol | string | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| data | array | yes | – |
| provenance | object | yes | – |
| schema | string | yes | – |
No examples provided.
search_resources Search Kallipolis Resources ~188
Search 350 prepared structured resource profiles by category, keyword or declared source hostname without contacting external providers.
| Name | Type | Req | Description |
|---|---|---|---|
| category | string | – | – |
| cursor | integer | – | – |
| limit | integer | – | – |
| q | string | – | Up to 8 whitespace-separated terms within 100 UTF-16 code units including outer whitespace; all terms must match literal case-insensitive substrings across public fields, declared publisher names or… |
| Name | Type | Req | Description |
|---|---|---|---|
| boundaries | object | yes | – |
| data | array | yes | – |
| page | object | yes | – |
| provenance | object | yes | – |
| schema | string | yes | – |
No examples provided.
How do I install the Plato's Kallipolis MCP server?
Plato's Kallipolis is a hosted endpoint at https://platoskallipolis.com/api/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · platoskallipolis.com
claude mcp add --transport http handongzhen101-jpg-platos-kallipolis 'https://platoskallipolis.com/api/mcp'
What is the Plato's Kallipolis MCP server?
Plato's Kallipolis is an MCP server listed in the public MCP registry as io.github.handongzhen101-jpg/platos-kallipolis. Read-only MCP tools for AI agent discovery, structured resources, and NIULAI information. This page covers its hosted endpoint (https://platoskallipolis.com/api/mcp).
Is the Plato's Kallipolis MCP server safe to use?
Plato's Kallipolis scores 82 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the Plato's Kallipolis MCP server expose?
Plato's Kallipolis exposes 6 tools: search_agents, search_resources, get_resource, get_niulai_info, get_growth_metrics, compile_query_plan. Their descriptions and schemas cost roughly 420 tokens of context every time the server is loaded.
Does the Plato's Kallipolis MCP server require authentication?
No. We connected to Plato's Kallipolis without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Plato's Kallipolis MCP server still maintained?
Plato's Kallipolis is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.