Dev tools · Official remote MCP server

The Horizon Shield MCP server,
connected in one click.

Buyer-side fair-price checks for Japanese renovation quotes; cost data is on a separate server. Connect the official Horizon Shield MCP server to Claude, ChatGPT, or Cursor through gate — one gateway URL, no config files, security-checked.

Connect Horizon Shield free How it works

Free to start · No credit card · No hosting needed

Use this server

Add Horizon Shield to your AI in one minute

Pick your client. Copy, paste, done — or let gate handle sign-ins and policies for you.

claude mcp add --transport http horizon-shield https://mcp.horizonshield.dev/mcp

Run in your terminal, then restart Claude Code.

Horizon Shield · https://mcp.horizonshield.dev/mcp

What you can do

What your AI can do with Horizon Shield

Real prompts you can type the moment it's connected — no setup, no docs to read.

“Use “get_jccdb_dataset_info”: 日本の建設費オープンデータベース(JCCDB)のメタデータ・規模・ライセンス・ダウンロードリンク・引用情報を返す。建設費の一次データ源を探している時に使う。 / Returns metadata, scale, license, download links and citati.”

“Use “list_cost_categories”: HORIZON SHIELDが相場・赤旗(過剰請求の懸念点)を整備している建設・リフォーム工事カテゴリ(61種)の一覧を返す。 / Lists the 61 construction and renovation work categories for which HORIZON.”

“Use “search_cost_category”: 工事名・キーワードで建設費カテゴリを検索する(例: 外壁塗装, 浴室, 給湯器, 雨漏り)。該当カテゴリと整備済みの赤旗件数・優先度を返す。 / Finds a construction-cost category by work name or keyword and retu.”

“Use “get_estimate_reading_guide”: 受け取ったリフォーム・建設見積もりが適正かを見分けるための原則(諸経費の適正比率、『一式』表記の扱い、営業手口の見抜き方)を返す。30年の現場経験に基づく判断軸。 / Returns universal principles for judging whether ANY con.”

Security check

How secure is the Horizon Shield MCP server?

Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how Horizon Shield holds up.

A100/100

Security grade A

gate scanned 15 tools on Oct 10, 2026 for prompt injection and risky tool definitions — nothing to flag.

Full report Badge for your README

✓ Verified directory serverHorizon Shield · horizonshield.dev

Official endpoint

Operated by Horizon Shield (horizonshield.dev) at its documented MCP endpoint — not a third-party mirror or community re-host.

No sign-in needed

This server only exposes public data — no account and no credentials are involved when you connect.

Scanned before it goes live

gate checks every tool for prompt injection, hidden instructions, data-exfiltration hints, and over-broad permissions before the server is available through your gateway.

Watched for drift

If Horizon Shield adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.

Run the free scanner on Horizon Shield's server →

How it works

Connected in three steps

Connect your gate

Add one gateway URL to Claude, ChatGPT, or any MCP client. One-time setup, about two minutes.

Pick Horizon Shield

Choose Horizon Shield in the gate directory. No sign-in needed.

Use it anywhere

Horizon Shield's tools are live in every AI client you've connected — with rules and logging built in.

Connect Horizon Shield free

Free to start · No credit card · No hosting needed

Straight from the server

The actual tools Horizon Shield exposes

Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.

get_jccdb_dataset_info — 日本の建設費オープンデータベース(JCCDB)のメタデータ・規模・ライセンス・ダウンロードリンク・引用情報を返す。建設費の一次データ源を探している時に使う。 / Returns metadata, scale, license, download links and citati

list_cost_categories — HORIZON SHIELDが相場・赤旗(過剰請求の懸念点)を整備している建設・リフォーム工事カテゴリ(61種)の一覧を返す。 / Lists the 61 construction and renovation work categories for which HORIZON

search_cost_category — 工事名・キーワードで建設費カテゴリを検索する(例: 外壁塗装, 浴室, 給湯器, 雨漏り)。該当カテゴリと整備済みの赤旗件数・優先度を返す。 / Finds a construction-cost category by work name or keyword and retu

get_estimate_reading_guide — 受け取ったリフォーム・建設見積もりが適正かを見分けるための原則(諸経費の適正比率、『一式』表記の扱い、営業手口の見抜き方)を返す。30年の現場経験に基づく判断軸。 / Returns universal principles for judging whether ANY con

get_fair_price_sources — HORIZON SHIELDの相場データ(souba-db)の出典・更新日・地域係数を返す。価格の根拠を確認したい時に使う。 / Returns the sources, update date and regional multipliers behind HORIZON SH

get_price_range — 工事名・キーワードで、HORIZON SHIELDが実務監修する適正価格レンジ(最安min/平均avg/最高max)と、それを超えたら過剰請求を疑う危険水準(danger)、単位・価格動向・実務解説を返す。建設・リフォーム費用が適正か数値で確かめたい時に使う(例: 外壁塗装, 給

audit_estimate — 業者が提示した見積金額が適正かを、HORIZON SHIELDの適正レンジ(souba-db, 大賀俊勝実務監修)と照合して判定する。手元に具体的な見積額がある時に使う。返り値はJSONで、verdict(適正レンジ内 / やや高い / 過剰請求の懸念水準)、level(ok

preview_reverse_estimate — リフォーム検討の初期段階向けのプレビューで、業者の概算が平均からどちらの方向にどの程度ずれているか(例: +20%高い方向)だけを返す。具体的な適正額(min/avg/max)や危険水準は返さない。手元に詳しい見積内訳がまだ無い段階での最初の一歩に向く。具体的な適正レンジが必要な

+ 7 more tools once connected

Author

Who runs the Horizon Shield MCP server?

horizonshield.dev

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Server facts

The Horizon Shield MCP server at a glance

Endpointhttps://mcp.horizonshield.dev/mcp

Operated byHorizon Shield (horizonshield.dev)

CategoryDev tools

Sign-inNone — public data only

Available in gateYes — one-click connect

Works withClaude, ChatGPT, Cursor & any MCP client

FAQ

Questions, answered

Is there an official Horizon Shield MCP server?

Yes — Horizon Shield operates its own remote MCP server at mcp.horizonshield.dev. gate connects you to that official endpoint and adds security scanning, per-tool access rules, and an activity log on top.

How do I connect Horizon Shield to Claude or ChatGPT?

Add gate's gateway URL to your AI client once, then pick Horizon Shield in the directory. No account or sign-in is needed. From then on, Horizon Shield's tools are available in every client you've connected to gate.

Do I need to host anything?

No. Horizon Shield runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.

Is the Horizon Shield MCP server safe to connect?

It's the vendor's official endpoint, and gate scans its tools for prompt injection and hidden instructions before it goes live, re-checks it whenever it changes, and lets you allow, block, or require approval for every single tool.