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 · Data access / search

ALUZZA MARINE: Japan boat trade and tide tables

Japan boat trade 2011-2025, tide tables for 239 ports and past monthly weather near ports (JMA).

Checks passed
11 / 22

3 failed · 8 not measured

Median response
1045 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
8

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?
310
Publisher identityCan the publisher be traced to its source?
222

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 1045 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-11-25, serverInfo.name aluzza-marine.

  • Pass
    Lists tools

    tools/list returned 8 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 1045 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 1045 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

    24 of 24 parameters have a description (100%). The bar is 80%.

  • Fail
    Safety hints

    8 tools set neither readOnlyHint nor destructiveHint.

Publisher

  • Pass
    Verified namespace

    Listed in the Official MCP Registry.

  • Fail
    Website matches publisher

    The website host does not match the reverse-domain namespace.

  • Fail
    Source repo linked

    No repository URL is on file.

  • Not measured
    Repo owner matches

    This namespace is not an io.github login, so the owner comparison does not apply.

  • Pass
    Recently updated

    Updated 2026-10-25T20:46:50.033444Z, within 180 days.

  • Not measured
    Open-source licence

    No GitHub repository to ask about a licence.

Start using ALUZZA MARINE: Japan boat trade and tide tables

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 aluzza-marine-japan-boat-trade-and-tide-tables https://marine.aluzza.jp/mcp/

Capabilities

Tools 8

get_tide

ある地点・ある日の満潮と干潮の時刻と潮位(cm・潮位表基準面から)、月齢、潮回り(大潮・中潮・小潮・長潮・若潮)、その日の月相を返す(2026-01-01〜2027-12-31)。days で 7 日まで続けて。include_hourly で 1 時間ごとの潮位も。気象庁の天文潮の推算で、予報ではない。

Discovered
get_trade

ある年・流れ・品目の、国ごとの数量と金額(円)を返す。partner を書けばその国だけ。partner に「世界の合計」と書けば全体。

Discovered
list_codes

使える品目の番号と名前(日本語と英語)、データの注意を返す。最初にこれを呼ぶと間違えにくい。

Discovered
list_tide_stations

潮見表の地点(気象庁の潮位表の 239 か所)を探す。query に地名(例:釧路・東京・横浜・博多)、region に地方(例:北海道東部・関東地方・伊豆諸島)。どちらも省くと地方の一覧と地点の数。

Discovered
next_tide

いま(日本の時刻)から見た、次の満潮と次の干潮の時刻・潮位・あと何分か、いまの潮位のおよその値と上げ潮か下げ潮か、潮回りを返す。読み上げ用の短い文(speech_ja)つき。at で別の時刻も。気象庁の天文潮の推算で、予報ではない。

Discovered
past_weather

港(潮見表の地点)のいちばん近い気象台・測候所(40 km 以内)の、過去の月ごとの平均気温・平均風速・降水量(1991 年から・気象庁の観測)。year だけならその年の 12 か月、month だけなら毎年のその月、両方なら一つの月、どちらも省くと最新の 12 か月。過去の観測で、予報ではない。

Discovered
top_partners

年の範囲・流れ・品目で、相手の国を数量か金額の大きい順に並べる。1 つあたりの平均の値段(円)も付ける。

Discovered
yearly_series

流れ・品目・相手の国の、2011〜2025 年の年ごとの数量と金額(円)を返す。partner を省くと世界の合計。

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected1045 ms8