Jisho
NPM · @PIPEWORX/MCP-JISHO · 2 COMPONENTS
Jisho.org Japanese-English dictionary MCP (keyless).
Available components
Last scanned (2 hours ago)
Scores higher than 76% of npm servers
Category Education and Research
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 Security100
- No malware found by supply-chain analysis.Pass
- No known CVEs affecting this package version or its production dependencies.Pass
- No install/post-install scripts declared.Pass
- No production dependencies, so there is no dependency health to assess. View diagnostics → Pass
Provenance & Transparency97
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Cryptographically verified build provenance (signed, bound to pipeworx-io/mcp-jisho). View diagnostics → Pass
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 2 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability71
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 353 tokens (~176/item across 2 items; 2 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 Management23
- Stability observed for 7 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 2 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 3 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
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.
- 5 Nov 26 0
- Security disclosure: unverified → fail ▼ functional
- 4 Nov 26 0
- Security disclosure: fail → unverified ▼ functional
- 3 Nov 26 +16
- Malware scan: unverified → pass ▲ security
- 2 Nov 26 −13
- Malware scan: pass → unverified ▼ security
- Stability: unverified → 0.13 ▲ functional
- Package version: 0.2.0 → 0.2.1 functional
- 30 Oct 26 0
- Security disclosure: unverified → fail ▼ functional
- 29 Oct 26 80
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 5 Nov 2026 · Analysed npm/@pipeworx/mcp-jisho@0.2.1
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 | pipeworx-io/mcp-jisho |
| Certificate issuer | https://token.actions.githubusercontent.com |
| Certificate SAN | https://github.com/pipeworx-io/mcp-jisho/.github/workflows/publish.yml@refs/heads/main |
| Rekor log index | 3649478374 |
| Predicate type | SLSA build provenance https://slsa.dev/provenance/v1 |
| Subject digest | sha512:70e6cc0f2741e48df086181e855f620a025648ad9ed7f5d85e5e7512a73a304dd8ed217e57e667e2897bb68de1510ac34f38c500c85f71c0db1a8dd9a |
Background: How many MCP packages publish verified provenance →
Dependencies 0 packages
| Packages resolved | 0 |
|---|---|
| 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 →
lookup ~136
Look up a single Japanese or English word in the Jisho.org dictionary and return only the single best/first matching entry in a compact form: headword (slug), common-ness, JLPT level, all readings, a flat list of English meanings, and the unique parts of speech. Best for quick "what does this word mean / how is it read" questions. Accepts kanji, kana, romaji, or English.
| Name | Type | Req | Description |
|---|---|---|---|
| word | string | yes | The word to look up: Japanese kanji/kana, romaji, or English (e.g. "食べる", "taberu", "to eat"). |
No output schema declared.
No examples provided.
search_words ~165
Search the Jisho.org Japanese<->English dictionary. The keyword can be English (translate to Japanese), Japanese kanji/kana, or romaji. Returns up to `limit` matching dictionary entries, each with the headword (slug), whether it is a common word, JLPT level, all readings/spellings, and English meanings grouped into senses with parts of speech. Use this to translate, look up a kanji/kana word, or find Japanese words for an English concept.
| Name | Type | Req | Description |
|---|---|---|---|
| keyword | string | yes | Search term: English word/phrase, Japanese kanji or kana, or romaji (e.g. "house", "家", "いえ", "ie"). |
| limit | number | – | Maximum number of entries to return (default 10). |
No output schema declared.
No examples provided.
How do I install the Jisho MCP server?
Jisho runs locally as an npm package, launched with npx -y @pipeworx/mcp-jisho. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · @pipeworx/mcp-jisho
claude mcp add pipeworx-io-jisho -- npx -y @pipeworx/mcp-jisho
What is the Jisho MCP server?
Jisho is an MCP server listed in the public MCP registry as io.github.pipeworx-io/jisho. Jisho.org Japanese-English dictionary MCP (keyless). This page covers its npm package (@pipeworx/mcp-jisho).
Is the Jisho MCP server safe to use?
Jisho scores 83 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 5 November 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 Jisho MCP server expose?
Jisho exposes 2 tools: search_words, lookup. Their descriptions and schemas cost roughly 301 tokens of context every time the server is loaded.
Is the Jisho MCP server still maintained?
Jisho is still listed as active in the MCP registry. We last reached this channel on 5 November 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 Jisho MCP server under?
Jisho declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.