Japan → Korea Bridge
NPM · @APPMONSTER/MCP-JAPAN-BRIDGE
Japan→Korea sourcing: Rakuten/Yahoo search, JPY→KRW landed cost, Smart Store draft. 일본구매대행 MCP.
Available components
Last scanned (5 hours ago)
Scores higher than 42% of npm servers
Category E-commerce
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →
Supply Chain Security81
- No malware found by supply-chain analysis.Pass
- CVE check failed: a known high-severity CVE affects zod 3.25.76, a direct dependency. A fixed version is available. View diagnostics → Fail
- No install/post-install scripts declared.Pass
- 30 of 93 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency100
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Cryptographically verified build provenance (signed, bound to groove79/kmcp). View diagnostics → Pass
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 0 days ago).Pass
- Publishes a security disclosure policy (SECURITY.md).Pass
Schema Quality & AI Usability59
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 903 tokens (~180/item across 5 items; 5 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management0
- Stability not yet verified: not enough scan history yet (needs a 30-day window).Unverified
Tool Coverage73
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 19% of tool parameters carry a description.Partial
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 5 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 5 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Unverified: 1 category
A category scored 0 because we could not verify it: a data source with nothing on this package, evidence we could not reach, or a check we could not run. We only credit what we can confirm.
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 24 Oct 26 +10
- CVE-2023-54404 affects this package: high ▼ security
- Known CVEs: pass → fail ▼ security
- Malware scan: unverified → pass ▲ security
- 23 Oct 26 61
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 24 Oct 2026 · Analysed npm/@appmonster/mcp-japan-bridge@0.1.1
Provenance Verified
A signed build attestation was found and verified, binding this exact artifact to the source repository it claims to come from.
| Result | Verified |
|---|---|
| Ecosystem | npm |
| Reason | Verified |
| Discovered via | Registry attestation endpoint |
| Source repo | groove79/kmcp |
| Certificate issuer | https://token.actions.githubusercontent.com |
| Certificate SAN | https://github.com/groove79/kmcp/.github/workflows/publish.yml@refs/tags/japan-bridge-v0.1.1 |
| Rekor log index | 3420323469 |
| Predicate type | SLSA build provenance https://slsa.dev/provenance/v1 |
| Subject digest | sha512:950af9e47ec7853c4cecc5afc90acfb1cc5a36cdfd7c86903d8a6bec0beadbcd9b0840bac95e7c4757b84b249b0a26deb7b77f64c15034bee1da707fd |
Background: How many MCP packages publish verified provenance →
Vulnerabilities 1 finding
| ID | CVE | Severity | Vector | Fix available |
|---|---|---|---|---|
| GHSA-mrhx-c7xc-m3w5 | CVE-2023-54404 | high | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | yes |
Background: What a vulnerability scan can and cannot prove →
Dependencies 93 packages
| Packages resolved | 93 |
|---|---|
| Stale | 30 |
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
jp_fx_rate ~78
Current JPY→KRW and USD→KRW mid-market rates (open.er-api.com, refreshed daily) for use in jp_landed_cost. Customs uses its own weekly rate; this is for estimates. 엔·달러 환율을 가져옵니다. Use before jp_landed_cost unless you already have rates. Needs nothing.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
jp_landed_cost ~335
Compute the full Korea landed cost of a Japanese item and a suggested Smart Store price: JPY→KRW, forwarder shipping, Korean customs (USD 150 de minimis, 간이세율 20% or duty+VAT), marketplace fees, target margin. Pure calculation, explains every step. 일본 상품의 한국 도착 원가와 권장 판매가를 계산합니다. Use after picking an item; give priceJpy and rates (from jp_fx_rate). Needs priceJpy, jpyToKrw, usdToKrw; optional weight, shipping, tax mode, margin.
| Name | Type | Req | Description |
|---|---|---|---|
| domesticShippingJpy | number | – | JP domestic shipping to the forwarder (0 if 送料無料) |
| dutyFreeUsd | number | – | – |
| dutyRate | number | – | HS-code duty rate for general mode (의류 13%, 일반 8%…) |
| extraKrw | number | – | – |
| jpyToKrw | number | yes | – |
| platformFeeRate | number | – | Default from env BRIDGE_PLATFORM_FEE_RATE (0.06) |
| priceJpy | number | yes | – |
| quantity | integer | – | – |
| shippingJpy | number | – | International shipping for the parcel; overrides the base+per-kg estimate |
| simpleRate | number | – | – |
| targetMarginRate | number | – | – |
| taxMode | string | – | simple = 간이세율(특송/우편), general = 관세율 + 부가세 |
| usdToKrw | number | yes | – |
| weightKg | number | – | – |
No output schema declared.
No examples provided.
jp_listing_draft ~204
Build a Naver Smart Store listing draft for a Japanese item: Korean title/description slots, price from jp_landed_cost, images, origin 일본, plus the 해외구매대행 disclosures Korean law requires (shipping days, customs, no-return cases, 개인통관고유부호). Returns JSON for review — nothing is posted. 스마트스토어 등록 초안을 만듭니다. Use after jp_landed_cost; the agent writes the Korean title/description, this tool supplies structure and mandatory notices. Needs the item and the suggested price.
| Name | Type | Req | Description |
|---|---|---|---|
| categoryHint | string | – | – |
| descriptionKo | string | yes | Korean description written by the agent |
| item | object | yes | – |
| leadTimeDays | integer | – | – |
| sellPriceKrw | integer | yes | – |
| stockQuantity | integer | – | – |
| titleKo | string | yes | Korean product title written by the agent (brand + model + key spec, ≤100자) |
No output schema declared.
No examples provided.
jp_search_rakuten ~143
Search Rakuten Ichiba (楽天市場) products by keyword: name, JPY price, shop, image, review score, stock, postage flag, item URL. 라쿠텐 상품을 검색합니다. Use to source Japanese items for a Korean listing; pass results to jp_landed_cost. Needs a keyword; RAKUTEN_APP_ID + RAKUTEN_ACCESS_KEY env.
| Name | Type | Req | Description |
|---|---|---|---|
| hits | integer | – | – |
| inStockOnly | boolean | – | – |
| keyword | string | yes | – |
| maxPrice | integer | – | – |
| minPrice | integer | – | – |
| page | integer | – | – |
| sort | string | – | – |
No output schema declared.
No examples provided.
jp_search_yahoo ~143
Search Yahoo! JAPAN Shopping products by keyword: name, JPY price, seller, image, reviews, stock, free-shipping flag, URL. 1 request/sec limit. 야후재팬 쇼핑 상품을 검색합니다. Use alongside jp_search_rakuten to compare Japanese prices. Needs a keyword; YAHOO_JP_APP_ID env.
| Name | Type | Req | Description |
|---|---|---|---|
| condition | string | – | – |
| inStockOnly | boolean | – | – |
| priceFrom | integer | – | – |
| priceTo | integer | – | – |
| query | string | yes | – |
| results | integer | – | – |
| sort | string | – | – |
| start | integer | – | – |
No output schema declared.
No examples provided.
How do I install the Japan → Korea Bridge MCP server?
Japan → Korea Bridge runs locally as an npm package, launched with npx -y @appmonster/mcp-japan-bridge. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · @appmonster/mcp-japan-bridge
claude mcp add groove79-mcp-japan-bridge -- npx -y @appmonster/mcp-japan-bridge
What is the Japan → Korea Bridge MCP server?
Japan → Korea Bridge is an MCP server listed in the public MCP registry as io.github.groove79/mcp-japan-bridge. Japan→Korea sourcing: Rakuten/Yahoo search, JPY→KRW landed cost, Smart Store draft. 일본구매대행 MCP. This page covers its npm package (@appmonster/mcp-japan-bridge).
Is the Japan → Korea Bridge MCP server safe to use?
Japan → Korea Bridge scores 71 out of 100 on VerifyMCP. We recorded 1 known advisory against it as of 24 October 2026. It declares no install or post-install scripts. Its build provenance is signed and verified. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the Japan → Korea Bridge MCP server expose?
Japan → Korea Bridge exposes 5 tools: jp_search_rakuten, jp_search_yahoo, jp_fx_rate, jp_landed_cost, jp_listing_draft. Their descriptions and schemas cost roughly 903 tokens of context every time the server is loaded.
Is the Japan → Korea Bridge MCP server still maintained?
Japan → Korea Bridge is still listed as active in the MCP registry. We last reached this channel on 24 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.
What licence is the Japan → Korea Bridge MCP server under?
Japan → Korea Bridge declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.