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Browse the merchandise catalog (Kingdom Hearts, Demon Slayer and One Piece) by series, 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"}. Omit ip to search every series. Returns items[] (sku_id, name_en/name_ja, official, original price msrp_jpy plus price_local/currency, price_basis, price_note_en for per-draw prices, region, availability_hint, typical_channels, source_url, page_url = the item's page on merchgraph.app) and total_matches. For a series that is not covered, items is empty and supported_series lists the covered ones. If a character has no solo merch (e.g. Xigbar), the result also has suggested_character_group and suggested_items for their group (e.g. Organization XIII). Lists catalog entries only; it does not mean anything is for sale right now. Use explain_product with a sku_id for full details.
Series ID. Live series: "kingdom-hearts" (Kingdom Hearts), "kimetsu-no-yaiba" (Demon Slayer), "one-piece" (One Piece). Optional: omit to search all of them.
Maximum number of items to return (default 10). total_matches always gives the full count.
Filter by series vocabulary (factions, worlds, keyblades, songs…) found in item names, aliases or notes. Optional.
"display" = figures, plush, prizes, acrylic stands; "wear" = apparel; "read" = books; "play" = games and cards; "any" (default).
Character name in English or Japanese, e.g. "Sora", "ソラ", "Organization XIII". Partial match. Optional.
Maximum original price in Japanese yen (overseas items are compared at a fixed rate), e.g. 5000. Optional.
Pick your client. Values in capitals, like YOUR_TOKEN, are yours to fill in.
Run in a terminal
claude mcp add --transport http merchgraph https://mcp.merchgraph.app/mcp
Browse the merchandise catalog (Kingdom Hearts, Demon Slayer and One Piece) by series, 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"}. Omit ip to search every series. Returns items[] (sku_id, name_en/name_ja, official, original price msrp_jpy plus price_local/currency, price_basis, price_note_en for per-draw prices, region, availability_hint, typical_channels, source_url, page_url = the item's page on merchgraph.app) and total_matches. For a series that is not covered, items is empty and supported_series lists the covered ones. If a character has no solo merch (e.g. Xigbar), the result also has suggested_character_group and suggested_items for their group (e.g. Organization XIII). Lists catalog entries only; it does not mean anything is for sale right now. Use explain_product with a sku_id for full details.
| Argument | Type | Description |
|---|---|---|
| ip | string | Series ID. Live series: "kingdom-hearts" (Kingdom Hearts), "kimetsu-no-yaiba" (Demon Slayer), "one-piece" (One Piece). Optional: omit to search all of them. |
| limit | number | Maximum number of items to return (default 10). total_matches always gives the full count. |
| terms | object | Filter by series vocabulary (factions, worlds, keyblades, songs…) found in item names, aliases or notes. Optional. |
| purpose | string | "display" = figures, plush, prizes, acrylic stands; "wear" = apparel; "read" = books; "play" = games and cards; "any" (default). |
| character | string | Character name in English or Japanese, e.g. "Sora", "ソラ", "Organization XIII". Partial match. Optional. |
| budget_jpy | number | Maximum original price in Japanese yen (overseas items are compared at a fixed rate), e.g. 5000. Optional. |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"properties": {
"ip": {
"type": "string",
"description": "Series ID. Live series: \"kingdom-hearts\" (Kingdom Hearts), \"kimetsu-no-yaiba\" (Demon Slayer), \"one-piece\" (One Piece). Optional: omit to search all of them."
},
"limit": {
"type": "number",
"description": "Maximum number of items to return (default 10). total_matches always gives the full count."
},
"terms": {
"type": "object",
"properties": {
"names": {
"type": "array",
"items": {
"type": "string"
},
"description": "Only items mentioning these series terms, in English or Japanese, e.g. [\"Heartless\"], [\"XIII機関\"], [\"Kingdom Key\"]."
},
"types": {
"type": "array",
"items": {
"enum": [
"character",
"faction",
"world",
"item",
"keyblade",
"song",
"event",
"other"
],
"type": "string"
},
"description": "Only items mentioning a series term of these kinds (character/faction/world/item/keyblade/song/event/other)."
}
},
"description": "Filter by series vocabulary (factions, worlds, keyblades, songs…) found in item names, aliases or notes. Optional.",
"additionalProperties": false
},
"purpose": {
"enum": [
"display",
"wear",
"read",
"play",
"any"
],
"type": "string",
"description": "\"display\" = figures, plush, prizes, acrylic stands; \"wear\" = apparel; \"read\" = books; \"play\" = games and cards; \"any\" (default)."
},
"character": {
"type": "string",
"description": "Character name in English or Japanese, e.g. \"Sora\", \"ソラ\", \"Organization XIII\". Partial match. Optional."
},
"budget_jpy": {
"type": "number",
"description": "Maximum original price in Japanese yen (overseas items are compared at a fixed rate), e.g. 5000. Optional."
}
},
"additionalProperties": false
}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. Rough figures only: fee and shipping tables currently cover US, GB, DE and FR (other countries return no routes), come from third-party comparison guides (mid-2026) and exclude duties. Not a quote; we are not affiliated with any forwarding service.
| Argument | Type | Description |
|---|---|---|
| proxy | string | Only show one forwarding service, e.g. "buyee". Optional. |
| sku_id | string | Catalog sku_id, used to look up the weight. Optional. |
| weight_g | number | Package weight in grams, when there is no sku_id or the catalog has no weight. |
| price_jpy* | number | Item price in Japanese yen (required). |
| dest_country* | string | Destination country as an ISO 3166-1 alpha-2 code, e.g. "US", "GB", "AU". |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"price_jpy",
"dest_country"
],
"properties": {
"proxy": {
"type": "string",
"description": "Only show one forwarding service, e.g. \"buyee\". Optional."
},
"sku_id": {
"type": "string",
"description": "Catalog sku_id, used to look up the weight. Optional."
},
"weight_g": {
"type": "number",
"description": "Package weight in grams, when there is no sku_id or the catalog has no weight."
},
"price_jpy": {
"type": "number",
"description": "Item price in Japanese yen (required)."
},
"dest_country": {
"type": "string",
"description": "Destination country as an ISO 3166-1 alpha-2 code, e.g. \"US\", \"GB\", \"AU\"."
}
},
"additionalProperties": false
}Get the full record for one catalog item (Kingdom Hearts, Demon Slayer and One Piece). 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, line type, release date), characters, original price (msrp_jpy, price_local, currency, price_basis), acquisition_type (retail, kuji, prize, …), availability (hint + confidence), typical_channels, shipping (whether it is only sold at shops that ship within Japan, so a shipping-forwarding service is needed from abroad; costs are not calculated; for Mercari/Suruga-ya items a note that Mercari's global app may allow direct purchase in some countries), size/weight, re-release dates, official (licensed or fan-made), verified (checked against the source), source_url (primary source) and page_url (the item's page on merchgraph.app; cite both).
| Argument | Type | Description |
|---|---|---|
| query | string | Free-text product name in English or Japanese when you have no sku_id, e.g. "一番くじ キングダムハーツ A賞". |
| sku_id | string | Catalog SKU ID, e.g. "ichiban-kuji-kh-2018-a". Either sku_id or query is required. |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"properties": {
"query": {
"type": "string",
"description": "Free-text product name in English or Japanese when you have no sku_id, e.g. \"一番くじ キングダムハーツ A賞\"."
},
"sku_id": {
"type": "string",
"description": "Catalog SKU ID, e.g. \"ichiban-kuji-kh-2018-a\". Either sku_id or query is required."
}
},
"additionalProperties": false
}Report a mistake or missing item in the catalog (reviewed by hand before anything changes). Example: {sku_id: "ichiban-kuji-kh-2018-a", field: "msrp_jpy", proposed_value: "750", source_url: "https://…"}. Please include a primary source (maker, official shop or reliable press) when you can. Returns {accepted, correction_id}.
| Argument | Type | Description |
|---|---|---|
| note | string | Anything else worth knowing. Optional. |
| field* | string | What is wrong, as a catalog field name, e.g. "name_en", "msrp_jpy", "availability_hint", "official", or "new_item". |
| sku_id | string | The item's sku_id. Leave empty to suggest a new item. |
| source_url | string | URL of a primary source that confirms it. Optional but strongly preferred. |
| proposed_value* | string | The correct value (or, for a new item, its name and details). |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"field",
"proposed_value"
],
"properties": {
"note": {
"type": "string",
"description": "Anything else worth knowing. Optional."
},
"field": {
"type": "string",
"description": "What is wrong, as a catalog field name, e.g. \"name_en\", \"msrp_jpy\", \"availability_hint\", \"official\", or \"new_item\"."
},
"sku_id": {
"type": "string",
"description": "The item's sku_id. Leave empty to suggest a new item."
},
"source_url": {
"type": "string",
"description": "URL of a primary source that confirms it. Optional but strongly preferred."
},
"proposed_value": {
"type": "string",
"description": "The correct value (or, for a new item, its name and details)."
}
},
"additionalProperties": false
}Identify a Kingdom Hearts, Demon Slayer and One Piece 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, confidence 0-1, why, source_url, page_url = the item's page on merchgraph.app; several when the title is ambiguous), weak_matches[] when unsure, conditions[] (Japanese condition words such as 未使用/箱なし explained), flags[] (bootleg caution notes, not a verdict), price (original price and listing-to-original ratio when price_jpy is given), shipping (whether a shipping-forwarding service is needed from abroad; set platform for a precise answer; for Mercari/Suruga-ya a note that Mercari's global app may allow direct purchase in some countries), acquisition notes and next_checks_en (what to ask the seller). Listing text is not stored. For many listings at once use resolve_listings_batch.
| Argument | Type | Description |
|---|---|---|
| src | string | Traffic-source tag for usage statistics, used by the website (optional; only the tag and time are logged). Agents can omit it. |
| url | string | Listing URL. Optional; not stored and not fetched. |
| title* | string | The listing title, copied as-is (required). |
| platform | string | Where it is listed. Optional. |
| price_jpy | number | Listing price in Japanese yen. Optional; enables the comparison with the original price. |
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 {error} for that one listing only). For more than 5, split into several calls. For a single listing use resolve_listing.
| Argument | Type | Description |
|---|---|---|
| listings* | array | Listings to check (1–5); each takes the same arguments as resolve_listing. |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"listings"
],
"properties": {
"listings": {
"type": "array",
"items": {
"type": "object",
"required": [
"title"
],
"properties": {
"src": {
"type": "string",
"description": "Traffic-source tag for usage statistics (optional; only the tag and time are logged)."
},
"url": {
"type": "string",
"description": "Listing URL. Optional; not stored and not fetched."
},
"title": {
"type": "string",
"description": "The listing title, copied as-is (required)."
},
"platform": {
"enum": [
"mercari",
"yahoo",
"surugaya",
"mandarake",
"other"
],
"type": "string",
"description": "Where it is listed. Optional."
},
"price_jpy": {
"type": "number",
"description": "Listing price in Japanese yen. Optional."
},
"description": {
"type": "string",
"description": "Part of the listing description. Optional."
}
},
"additionalProperties": false
},
"description": "Listings to check (1–5); each takes the same arguments as resolve_listing."
}
},
"additionalProperties": false
}We read every tool's name, description and inputs the way the model will, looking for instructions hidden from you. A clean result means no warning signs, not a guarantee. Scanned Nov 13, 2026.
| description | string | Part of the listing description, e.g. condition notes such as 開封済み. Optional; improves condition and bootleg checks. |
{
"type": "object",
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"title"
],
"properties": {
"src": {
"type": "string",
"description": "Traffic-source tag for usage statistics, used by the website (optional; only the tag and time are logged). Agents can omit it."
},
"url": {
"type": "string",
"description": "Listing URL. Optional; not stored and not fetched."
},
"title": {
"type": "string",
"description": "The listing title, copied as-is (required)."
},
"platform": {
"enum": [
"mercari",
"yahoo",
"surugaya",
"mandarake",
"other"
],
"type": "string",
"description": "Where it is listed. Optional."
},
"price_jpy": {
"type": "number",
"description": "Listing price in Japanese yen. Optional; enables the comparison with the original price."
},
"description": {
"type": "string",
"description": "Part of the listing description, e.g. condition notes such as 開封済み. Optional; improves condition and bootleg checks."
}
},
"additionalProperties": false
}