MCP HeartbeatTHE MCP OBSERVATORY
Public workspace

Explore

Evidence for your next connection.

Independent measurements of remote MCP servers. Every observation has a timestamp.

Read-only probes

MCP server · Code & DevOps

不動産情報サービス MCP

国土交通省の不動産情報ライブラリから不動産価格データを取得するためのサービスです。

Checks passed
11 / 22

3 failed · 8 not measured

Median response
50 ms

Median of successful probes over 7 days

30-day uptime
Not measured

Share of countable probes over 30 days, including daily rollups. Auth challenges are excluded.

Discovered tools
3

Tool definitions returned by this server

Independent monitoring

Health & checks

Status history

Responded

The server completed its last measured handshake. This is an observation, not a guarantee.

Last checked
Check summary by test group
Test areaPassedFailedUnmeasured
ConnectionCan a client connect and discover tools?
500
Reliability & speedDoes it respond consistently and quickly?
004
Access & authenticationWhat is required to use this server?
102
Tool qualityAre the tool definitions usable by an agent?
400
Publisher identityCan the publisher be traced to its source?
132

Unmeasured means there is not enough evidence to decide. How these checks work

Inspect individual checks 22 recorded

Core

  • Pass
    Reachable

    Latest probe returned HTTP 200 in 50 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-11-25, serverInfo.name n.3.ai MCP Server.

  • Pass
    Lists tools

    tools/list returned 3 tools.

  • Pass
    Current protocol

    Negotiated 2025-11-25. The bar is 2025-06-18 or newer.

  • Pass
    HTTPS

    The endpoint URL is https.

Performance

  • Not measured
    Fast (p50)

    Median latency 50 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 50 ms over 1 samples in 7 days. The bar is 3000 ms. Need at least 20 samples.

  • Not measured
    Reliable (uptime)

    1 of 1 attempts returned a tool list in 30 days (100%). The bar is 99%. Need at least 30 samples.

  • Not measured
    Stable tool list

    Fewer than two successful probes in 30 days, so tool-list stability is not measured.

Access

  • Pass
    Open access

    tools/list succeeded with no credential, and the record declares none.

  • Not measured
    Standard auth

    Auth is not required, so the OAuth metadata check does not apply.

  • Not measured
    Free tier cited

    No publisher quote has been checked.

Tools

  • Pass
    Tools described

    Every tool description is at least 20 characters.

  • Pass
    Valid input schemas

    Every inputSchema is a JSON Schema object.

  • Pass
    Parameters documented

    12 of 12 parameters have a description (100%). The bar is 80%.

  • Pass
    Safety hints

    Every tool sets readOnlyHint or destructiveHint.

Publisher

  • Pass
    Verified namespace

    Listed in the Official MCP Registry.

  • Not measured
    Website matches publisher

    This namespace is not a reverse domain, so the website comparison does not apply.

  • Fail
    Source repo linked

    No repository URL is on file.

  • Fail
    Repo owner matches

    The GitHub repository owner does not match the namespace login.

  • Fail
    Recently updated

    Updated 2026-02-09T01:39:40.65069Z, which is older than 180 days.

  • Not measured
    Open-source licence

    No GitHub repository to ask about a licence.

Start using 不動産情報サービス MCP

Connect to this server

Choose your client, copy the configuration, then enable the server in your client’s MCP settings.

Run this command in your terminal, then restart Claude Code.

Claude Code

claude mcp add --transport http mcp https://mcp.n-3.ai/mcp?tools=get-time,reinfolib-real-estate-price,reinfolib-city-list

Capabilities

Tools 3

get-time

指定したタイムゾーンの現在時刻を取得します。フォーマット文字列には date-fns の形式を使用します(例: 'yyyy-MM-dd HH:mm:ss', 'yyyy年MM月dd日 HH時mm分ss秒')。24時間表記には 'HH' を使用してください。

Discovered
reinfolib-city-list

国土交通省の不動産情報ライブラリから都道府県内の市区町村一覧を取得します。都道府県コードを指定して検索します。ここで得た市区町村コード(id)は reinfolib-real-estate-price の city 引数に渡せます。

Discovered
reinfolib-real-estate-price

国土交通省の不動産情報ライブラリから不動産価格(取引価格・成約価格)情報を取得します。取引時期、地域(都道府県、市区町村、駅)などを指定して検索することが可能。市区町村コードは reinfolib-city-list ツールで取得できます。

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected50 ms3