# JP Data (Japanese Public Business Data) (mcpb · jp-data-mcp-0.1.0.mcpb)

Japanese open-data MCP server: corporate-number validation, zengin bank codes, national holidays

- Trust score: 17/100 (low)
- Change this week: 0
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-25

## Components

- mcpb · `jp-data-mcp-0.1.0.mcpb`: 17/100 (this document), [markdown](https://verifymcp.io/servers/kimotostudio-jp-data-mcp/https-github-com-kimotostudio-jp-data-mcp-releases-download-v0-1-0-jp-data-mcp-0.md), [page](https://verifymcp.io/servers/kimotostudio-jp-data-mcp/https-github-com-kimotostudio-jp-data-mcp-releases-download-v0-1-0-jp-data-mcp-0)

## Channel facts

- Registry: `mcpb`
- Package: `https://github.com/kimotostudio/jp-data-mcp/releases/download/v0.1.0/jp-data-mcp-0.1.0.mcpb`
- Transport: `stdio`

## Trust breakdown

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. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-08-25.

- **Supply Chain Security**: 25/100
  - Malware scan not yet available for this package.
  - Known CVEs were checked across the 22 of 22 dependencies we could resolve, so this covers what we could see, not the whole tree.
  - No install/post-install scripts declared.
  - 1 of 22 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 45/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 20 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 0/100
  - Schema quality not yet verified: this server's registry entry declares environment variables (an API key or similar) that our sandbox does not supply, so we have no schema to assess.
- **Stability & Change Management**: 0/100
  - Stability not yet verified: this server's registry entry declares environment variables (an API key or similar) that our sandbox does not supply, so we have no schema to compare.
- **Tool Coverage**: 0/100
  - Tool coverage not yet verified: this server's registry entry declares environment variables (an API key or similar) that our sandbox does not supply, so we have no tool definitions to assess.
- **Tool Safety**: not scored yet
  - Not scored yet: our latest scan of this package recorded no findings here. That is usually because the category is newer than the scan, or because we have not captured the MCP schema this package serves yet. It fills in the next time we score it.
- **Capabilities**: 0/100
  - Protocol version not yet verified: this server's registry entry declares environment variables (an API key or similar) that our sandbox does not supply, so we never saw its MCP handshake.

**Unverified: 4 categories.** Categories scored 0 because our sandbox run of this package has not given us the schema these checks need to read. That is a gap on our side rather than a finding about the package, and we only credit what we can confirm, so the score stands at 0 until the capture succeeds. We are working through the fleet, so this normally clears without any action from you.

## Install

- Download bundle: `https://github.com/kimotostudio/jp-data-mcp/releases/download/v0.1.0/jp-data-mcp-0.1.0.mcpb`

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-08-11 (score 17, 0)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-08-07 (score 17, 0)

- [security improvement] Known CVEs: unverified → partial

### 2026-08-06 (score 17, 0)

- [security] Stability: Stability not yet verified: our sandbox run of this package did not complete, so we have no schema to compare.
- [functional] Schema quality: Schema quality not yet verified: our sandbox run of this package did not complete, so we have no schema to assess.
- [functional] Capabilities: Protocol version not yet verified: our sandbox run of this package did not complete, so we never saw its MCP handshake.
- [functional] Tool coverage: Tool coverage not yet verified: our sandbox run of this package did not complete, so we have no tool definitions to assess.

### 2026-08-05 (score 17)

First indexed and scored.

## MCP tools (0)

Tools for package channels are captured by running the package in an isolated sandbox. The most recent sandbox run could not capture a tool list from this package.

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/kimotostudio-jp-data-mcp/https-github-com-kimotostudio-jp-data-mcp-releases-download-v0-1-0-jp-data-mcp-0#diagnostics

## Score history

- 2026-08-25: 17
- 2026-08-24: 17
- 2026-08-23: 17
- 2026-08-22: 17
- 2026-08-21: 17
- 2026-08-20: 17
- 2026-08-19: 17
- 2026-08-18: 17
- 2026-08-17: 17
- 2026-08-16: 17
- 2026-08-15: 17
- 2026-08-14: 17
- 2026-08-13: 17
- 2026-08-12: 17
- 2026-08-11: 17
- 2026-08-10: 17
- 2026-08-09: 17
- 2026-08-08: 17
- 2026-08-07: 17
- 2026-08-06: 17
- 2026-08-05: 17

## Common questions

### What is the JP Data (Japanese Public Business Data) MCP server?

JP Data (Japanese Public Business Data) is an MCP server listed in the public MCP registry as io.github.kimotostudio/jp-data-mcp. Japanese open-data MCP server: corporate-number validation, zengin bank codes, national holidays. This page covers its MCPB bundle (https://github.com/kimotostudio/jp-data-mcp/releases/download/v0.1.0/jp-data-mcp-0.1.0.mcpb).

### Is the JP Data (Japanese Public Business Data) MCP server safe to use?

JP Data (Japanese Public Business Data) scores 17 out of 100 on VerifyMCP. It declares no install or post-install scripts. 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 licence is the JP Data (Japanese Public Business Data) MCP server under?

JP Data (Japanese Public Business Data) declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.

## Links

- Repository: https://github.com/kimotostudio/jp-data-mcp
- Changelog RSS feed: https://verifymcp.io/servers/kimotostudio-jp-data-mcp/https-github-com-kimotostudio-jp-data-mcp-releases-download-v0-1-0-jp-data-mcp-0.xml
- Changelog JSON feed: https://verifymcp.io/servers/kimotostudio-jp-data-mcp/https-github-com-kimotostudio-jp-data-mcp-releases-download-v0-1-0-jp-data-mcp-0.json
- HTML version of this page: https://verifymcp.io/servers/kimotostudio-jp-data-mcp/https-github-com-kimotostudio-jp-data-mcp-releases-download-v0-1-0-jp-data-mcp-0