KH Merch Graph

Name: KH Merch Graph
Author: marleyhereicome-cpu

by marleyhereicome-cpuversion 1.0.1i★ –iRuns in the cloud

Registry nameio.github.marleyhereicome-cpu/kh-merch-graph

Install

Overview

Description from the maker (original English)

Identifies Kingdom Hearts merch from Japanese listing titles: SKU, condition terms, bootleg flags.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi3 of 3 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs in the cloud
Transport: Streamable HTTP
Category: Other

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 3 of 3 passed
Runs on the maker’s server: what you ask it goes through their server.
Can do 6 things (tools) resolve_listing, resolve_listings_batch, explain_product, discover …
The registry lists no key to fill in.

You need

Runs in the cloudNothing to install; it connects over the internet

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Works in Claude on the web, desktop and mobile:

Open Settings → Connectors
Press Add custom connector
Paste the address below and press Add
If it asks you to sign in, sign in with the maker

https://mcp.merchgraph.app/mcp

Run this in your terminal

claude mcp add --transport http kh-merch-graph https://mcp.merchgraph.app/mcp

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "kh-merch-graph": {
      "url": "https://mcp.merchgraph.app/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "kh-merch-graph": {
      "type": "http",
      "url": "https://mcp.merchgraph.app/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

ChatGPT connects only to servers on the internet:

Open ChatGPT on the web → Settings → Connectors (Apps)
Press Create or Add (some plans need Developer mode under Advanced first)
Paste the address below, give it a name and save
If it asks you to sign in, sign in with the maker

https://mcp.merchgraph.app/mcp

Menu names can differ slightly by plan and over time.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Tool names and descriptions exactly as the server reported them on Nov 7, 2026. The maker wrote them, not us; we show them as plain text.

resolve_listing
Identify a Kingdom Hearts item from a marketplace listing (Mercari, Yahoo! Auctions, Suruga-ya, Mandarake, eBay…). Paste the listing title as-is (Japanese or English), e.g. {title: "一番くじキングダムハーツ A賞ソラフィギュア箱なし", price_jpy: 4500}. Returns candidates[] (sku_id, name_en, confidenc
resolve_listings_batch
Run resolve_listing on up to 5 listings in one call, e.g. when comparing search results from a marketplace. Example: {listings: [{title: "…", price_jpy: 3000}, {title: "…"}]}. Returns an array in the same order; each element has the same shape as a resolve_listing result (or {err
explain_product
Get the full record for one Kingdom Hearts catalog item. Pass a sku_id from discover/resolve_listing (e.g. {sku_id: "ichiban-kuji-kh-2018-a"}), or a free-text query such as {query: "Sora Bring Arts Halloween Town"} to get the best match. Returns names (en/ja), product line (maker
discover
Browse the Kingdom Hearts merchandise catalog by character, budget and purpose. Use it to answer "what merch exists for X?" or "gift ideas under ¥5,000". Example: {ip: "kingdom-hearts", character: "Sora", budget_jpy: 5000, purpose: "display"}. Returns items[] (sku_id, name_en/nam
estimate_landed_cost
Estimate the total cost of buying an item in Japan and having it forwarded abroad. Example: {price_jpy: 4500, sku_id: "ichiban-kuji-kh-2018-a", dest_country: "US"}. Returns routes[] (forwarding service × shipping method, with fees and total_jpy, cheapest first) and cheapest. Roug
report_correction
Report a mistake or missing item in the catalog (reviewed by hand before anything changes). Example: {sku_id: "ichiban-kuji-kh-2018-a", field: "msrp_jpy", proposed_value: "750", source_url: "https://…"}. Please include a primary source (maker, official shop or reliable press) whe

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 8, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account marleyhereicome-cpu, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
✓ Pass
Endpoint responds
Responded in 155 ms (HTTP 200)
– Not applicable
Sign-in with OAuth
No sign-in needed
✓ Pass
No hidden instructions in tool descriptions
Read 6 tool descriptions and found no hidden instructions to the AI

Compared with others in Otheri

More stars than 0% of the other 18431 servers in this category
Published to the registry more recently than 73% of the other 18431 servers in this category
Basic checks equal to or better than 100% of the other 18431 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is KH Merch Graph safe?

It passed 3 of 3 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.0.1) reached the registry 15 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Spec Driven Development, Remote Desktop Commander, Filesystem MCP

Alternatives

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Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

KH Merch Graph

An MCP (Model Context Protocol) server that turns a Japanese secondhand-listing title for Kingdom Hearts merchandise (Mercari, Yahoo! Auctions, Suruga-ya, Mandarake, …) into: the likely official SKU, what the condition wording actually means, bootleg-caution flags, a price-to-MSRP ratio, and a landed-cost estimate to your country. Point any MCP-capable AI agent at it and hand it listing text — it does the rest.

Try it in your browser (no AI agent needed): https://merchgraph.app

Why this is different

Sourced catalog, not scraped or guessed. Every SKU in the catalog is tied to a primary source (an official product page, a maker's press release, etc.) and marked verified or not — the source URL is attached to every entry and returned with every match, so you can check it yourself. Nothing is inferred by an LLM inside the server.
No confident guess, no candidate. When the match confidence is low, this server does not present a guess as an answer. Low-confidence matches are returned separately as weak_matches, never mixed into candidates — an empty candidates array means "probably not in the catalog," not "best effort."
Bring Your Own Listing. This server never crawls or scrapes marketplaces itself, and never stores the listing text or URL you send it. You already have the listing open; you paste the text, it interprets it.

Supported IP

Kingdom Hearts only, for now. The catalog is curated one SKU at a time, so it grows slowly on purpose. If you ask about another franchise, the server won't fabricate an answer — it notes the request (see Data sourcing & privacy) to help decide what to add next. Use report_correction or open a GitHub issue if you want to nominate a franchise or a specific missing SKU.

Usage examples

These are things you'd say to your AI agent once it's connected to this server (see Connect).

1. "Is this listing worth it?"

"I found this on Mercari for ¥8,000: 一番くじ KINGDOM HEARTS -25th Anniversary- A賞ソラスタチュー開封済み.

What is it, and is that a fair price?"

The agent calls resolve_listing and gets back the matched SKU, the MSRP, the price ratio, the meaning of 「開封済み」("opened"), and a link to the primary source for that SKU.

2. "What Sora merch exists under ¥5,000?"

"Show me Kingdom Hearts Sora items under ¥5,000 that I could display."

The agent calls discover({ ip: "kingdom-hearts", character: "Sora", budget_jpy: 5000, purpose: "display" }) and gets a list of catalog SKUs matching those filters (this does not mean any of them are currently for sale anywhere — it's a catalog browse, not a marketplace search).

3. "What would it cost me, landed, in the US?"

"That listing is ¥8,000 plus it weighs about 400g. What's the total cost shipped to the US?"

The agent calls estimate_landed_cost({ price_jpy: 8000, weight_g: 400, dest_country: "US" }) and gets per-route estimates (proxy fee + shipping) with the cheapest option highlighted, plus when the rate table was last checked.

Connect

MCP endpoint (Streamable HTTP, JSON-RPC 2.0, no auth): https://mcp.merchgraph.app/mcp (the older https://kh-merch-graph.fandex.workers.dev/mcp keeps working)
Health check: .../health
For AI agents that discover servers by URL: .../llms.txt (plain-language entry point) and .../openapi.json (schema reference — the real transport is MCP's own tools/list/tools/call, this is a documentation aid for OpenAPI-only tooling)

Claude Desktop / Claude.ai

Add it as a custom connector using the MCP endpoint URL above. No API key or auth is required.

Any other MCP client

Point it at the /mcp endpoint with the Streamable HTTP transport. tools/list returns the live, authoritative schema for all five tools below.

Tools

Tool	What it does
`resolve_listing`	Listing title/description → SKU candidates, condition terms, bootleg-caution flags, price ratio
`resolve_listings_batch`	Same as `resolve_listing` for several listings in one call (up to 5 per call by default, set by `MAX_BATCH_LISTINGS` in `wrangler.toml`); results in input order
`explain_product`	`sku_id` or free-text query → full detail on one SKU (line, character, dimensions, rerelease history, source)
`discover`	Browse the catalog by IP/character/budget/purpose
`estimate_landed_cost`	Listing price + weight/SKU + destination country → landed-cost estimate by route
`report_correction`	Report a catalog error, or propose a new SKU, with a primary source

Full input/output shapes: docs/SPEC.md.

Data sourcing & privacy

Every catalog row requires a source_url to a primary source; unverified rows are marked verified=false rather than silently trusted.
This server does not scrape, browse, or log in to any marketplace. It only reads the text an agent sends it, for the duration of a single request.
Usage logs on the public deployment contain only: tool name, matched SKU IDs, price, destination country, and timestamp. The listing title, description, and any URL you pass are never logged or stored.
When resolve_listing finds no candidate, or discover is asked about an IP not yet in the catalog, the server logs a small, non-identifying signal (a handful of recognized keywords, or the requested IP name only — never the raw listing text) so maintainers know what to add next.

Disclaimers

Authenticity is a caution flag, not a verdict. flags point out things worth asking the seller about (price far below MSRP, materials/marks associated with counterfeits, etc.). This server never states that an item is genuine or fake.
Prices are estimates for planning, not appraisals or quotes. MSRP ratios and landed-cost totals are meant to help you decide whether to look closer, not to be relied on for a purchase decision or a valuation.

Reporting a correction or a new SKU

Call report_correction with the field you want changed (or leave sku_id empty to propose a new item), your proposed value, and — importantly — a source_url backing it up. You can also open a GitHub issue.

Contributing / building this yourself

This repo is also a step-by-step teaching kit for building an MCP server like this one from scratch. See docs/GETTING_STARTED_JA.md (Japanese) and docs/SPEC.md for the full design. License: MIT (see LICENSE). Third-party names, logos and images are not covered; see NOTICE.

Pipeline: active

KH Merch Graph

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Otheri

Common questions

Alternatives

Spec Driven Development

Remote Desktop Commander

Filesystem MCP

README from the maker

KH Merch Graph

Why this is different

Supported IP

Usage examples

Connect

Claude Desktop / Claude.ai

Any other MCP client

Tools

Data sourcing & privacy

Disclaimers

Reporting a correction or a new SKU

Contributing / building this yourself