Atlas entry

`mcjars.com`

3 capabilities over ARD and MCP. First atlas observation.

Observed 3 Nov 2026, 13:48 UTC · passive: no tools called, no credentials sent · sha256:a5cec6…5169

Capability facts

As observed from outside, at the time below

Observed: 3 Nov 2026, 13:48 UTC
Signed: 3 Nov 2026, 18:09 UTC

Protocols: ARD, MCP, MCP server card
Tools: 3
Declared sign-in: None declared

Effects counted AI readings, beta

Moves money: 0
Deletes or cancels records: 0
Sends messages to people: 0
Changes permissions: 0
Runs code: 0
Asks a person: 0

3 tools examined; 0 counted above a measured threshold.

Declared vs read disagreements

Declared read-only, read as writing: 0
Declared destructive, read as not writing: 0
Declared non-destructive, read as deleting: 0
Declared closed-world, read as reaching out: 0

Change since previous: First observation
Label status: Current

Surfaces

5 protocols checked

ARD	Valid	1 retrieved artifact
A2A	Not found	0 skills
MCP	Valid	2026-07-28 · 3 tools · resources not advertised · prompts not advertised
OpenAPI	Not detected	0 operations
WebMCP	Not detected	0 declarative form tools · experimental

Exact states and meaning

ARD
observed
Exact state: valid · 1 retrieved artifact
A usable protocol document was retrieved and validated.
Directly observed
A2A
absent
Exact state: not found · 0 skills
The supported discovery location returned no matching document.
Not found does not prove the service exposes no such interface elsewhere.
Not observed / not fetched
MCP
observed
Exact state: valid · Revision 2026-07-28 · 3 tools · resources not advertised · prompts not advertised
A usable protocol document was retrieved and validated.
Directly observed
OpenAPI
absent
Exact state: not detected · 0 operations
No endpoint was established from the evidence and scope that InterfaceDelta inspected.
Not detected does not prove that no endpoint exists.
Not observed / not fetched
WebMCP
absent
Exact state: not detected · 0 declarative form tools · experimental
No named declarative WebMCP form tools were observed in the origin root HTML.
Script-registered tools and other pages are not observed, so this does not mean the site has no WebMCP tools.
Not observed / not fetched

Capabilities

3 · inventory complete

Summary of the AI readings · beta

The service lists 3 capabilities, and 3 have AI readings.

get_download, list_providers and list_versions are read as read-only.

Rows named: get_download · list_providers · list_versions

Written by code from the AI readings on this page: it groups them and says nothing they do not.

The atlas shows each capability by its plain identifier, inputs and declared sign-in. Publisher descriptions, paths, links and source evidence are not published here.

MCP tools 3

get_download
inputs channel, context (required), conversation_id, llm_model (required) and 4 more
AI Reads only 0.85
list_providers
inputs context (required), conversation_id, llm_model (required)
AI Reads only 0.88
list_versions
inputs channel, context (required), conversation_id, limit and 4 more
AI Reads only 0.88

Not observed in this Passport: A2A skills, MCP resources, MCP prompts, OpenAPI operations.

Declared and observed

3 tools declare hints; the AI readings agree with all 3 that have a reading.

A disagreement is not a finding about the service: either side can be wrong. How we compare declarations and readings.

Atlas history

1 observation

3 Nov 2026, 13:48 UTC3 capabilities · ARD, MCP 2026-07-28 and MCP Server Card · MCP endpoint validFirst observation
Fingerprint and versions
Fingerprint
a5cec63b845affedbcd0c1e93e154f96583ebe8987da5a5c18f1f094ac0f5169
Passport schema
0.5.0, passport-semantic-v4
Consistency
ARD_DECLARED_MCP_SERVER_CARD: match · MCP_PROMPTS_ADVERTISEMENT_LIST: not applicable · MCP_RESOURCES_ADVERTISEMENT_LIST: not applicable · MCP_SERVER_CARD_REMOTE_OBSERVED: match · MCP_TOOLS_ADVERTISEMENT_LIST: match · OPENAPI_MCP_EXPLICIT_MAPPING: not applicable

Each class compares an observation with the previous atlas observation. Runs of unchanged observations are grouped. Struck values are what the previous observation recorded; inserted values are what this one recorded.

About this entry

com.mcjars/minecraft
Listed
Official MCP Registry · first listed 3 Nov 2026 · last listed 3 Nov 2026

Passive observations of a public interface listed in the Official MCP Registry. An observation does not verify security, ownership or compliance, and InterfaceDelta assigns no scores or rankings. Methodology · Report an inaccuracy · Ask for removal

Identity and snapshot

Target key: sha256:b2d9bb259b097103eada085af4c1dd84bf7e2c68e37e21a727274fb1801c09ee
Locator SHA-256: 92e20aaa6c3e7fbfb135241c137c7bff739dce103705c9ae737704f7b1784452
Snapshot generated: 4 Nov 2026, 00:59 UTC

The entry is one exact observed target, not a real-world service identity, and implies no ownership. Endpoint paths are not published; the locator hash lets an operator confirm their own URL.