Datamuse MCP
NPM · DATAMUSE-MCP
MCP server for Datamuse word-finding API
Available components
Last scanned (19 hours ago)
Scores higher than 66% 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 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 & Transparency48
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 203 days ago).Pass
- Publishes a security disclosure policy (SECURITY.md).Pass
Schema Quality & AI Usability86
- AI-judged instruction clarity (excellent).Pass
- Tool/resource definitions use about 843 tokens (~84/item across 10 items; 10 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management93
- Stability observed for 28 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 10 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 10 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.
- 4 Nov 26 −1
- Stability: pass → 0.93 functional
- 29 Oct 26 0
- Stability: 0.97 → pass security
- 28 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.
- 27 Oct 26 −1
- Stability: pass → 0.93 functional
- 24 Oct 26 −5
- CVE-2023-54404 affects this package: high ▼ security
- Known CVEs: pass → fail ▼ security
- 17 Oct 26 +2
- Stability: 0.83 → pass security
- 16 Oct 26 −2
- Stability: pass → 0.83 functional
- 15 Oct 26 0
- Stability: 0.97 → pass security
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 4 Nov 2026 · Analysed npm/datamuse-mcp@1.0.0
Provenance No attestation
The registry publishes no build provenance for this version, so there is nothing to verify.
| Result | No attestation |
|---|---|
| Ecosystem | npm |
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 →
autocomplete ~63
Get word suggestions for a partial input. Includes intelligent spelling correction and phonetic fallbacks when exact prefix matches aren't found.
| Name | Type | Req | Description |
|---|---|---|---|
| max | number | – | Maximum number of suggestions (1-25, default: 10) |
| prefix | string | yes | The partial word to complete |
No output schema declared.
No examples provided.
find_adjectives_for_noun ~79
Find adjectives commonly used to describe a noun. Based on Google Books Ngrams data. Example: 'ocean' → deep, blue, vast, pacific.
| Name | Type | Req | Description |
|---|---|---|---|
| max | number | – | Maximum number of results (1-50, default: 15) |
| noun | string | yes | The noun to find adjectives for |
No output schema declared.
No examples provided.
find_antonyms ~63
Find antonyms (words with opposite meanings) for a given word using WordNet relationships.
| Name | Type | Req | Description |
|---|---|---|---|
| max | number | – | Maximum number of results (1-50, default: 10) |
| word | string | yes | The word to find antonyms for |
No output schema declared.
No examples provided.
find_by_pattern ~106
Find words matching a spelling pattern with wildcards. Use '*' for any number of characters, '?' for exactly one character. Examples: 't??k' matches talk/tank/tick, 'un*able' matches unable/unforgettable.
| Name | Type | Req | Description |
|---|---|---|---|
| max | number | – | Maximum number of results (1-100, default: 25) |
| meaning_hint | string | – | Optional meaning to filter results |
| pattern | string | yes | Spelling pattern with wildcards (* or ?) |
No output schema declared.
No examples provided.
find_nouns_for_adjective ~75
Find nouns commonly described by an adjective. Based on Google Books Ngrams data. Example: 'yellow' → sun, light, fever, pages.
| Name | Type | Req | Description |
|---|---|---|---|
| adjective | string | yes | The adjective to find nouns for |
| max | number | – | Maximum number of results (1-50, default: 15) |
No output schema declared.
No examples provided.
find_related_words ~137
Find words semantically related to the input. Can find words by meaning similarity, statistical associations (triggers), or hierarchical relationships (hypernyms/hyponyms).
| Name | Type | Req | Description |
|---|---|---|---|
| max | number | – | Maximum number of results (1-50, default: 15) |
| relation_type | string | – | Type of relation: 'meaning' for semantic similarity, 'triggers' for associations, 'broader' for hypernyms, 'narrower' for hyponyms (default: meaning) |
| topic | string | – | Optional topic to bias results |
| word | string | yes | The word to find related words for |
No output schema declared.
No examples provided.
find_rhymes ~101
Find words that rhyme with a given word. Supports perfect rhymes and near-rhymes. Useful for poetry, songwriting, and creative writing.
| Name | Type | Req | Description |
|---|---|---|---|
| max | number | – | Maximum number of results (1-100, default: 20) |
| type | string | – | Type of rhyme: 'perfect' for exact rhymes, 'near' for approximate (default: perfect) |
| word | string | yes | The word to find rhymes for |
No output schema declared.
No examples provided.
find_similar_sounding ~79
Find words that sound similar to the input. Useful for spelling correction, finding homophones, creating puns, or phonetic matching.
| Name | Type | Req | Description |
|---|---|---|---|
| max | number | – | Maximum number of results (1-50, default: 15) |
| text | string | yes | The text to match phonetically (can be a misspelling) |
No output schema declared.
No examples provided.
find_synonyms ~92
Find synonyms (words with similar meanings) for a given word. Uses WordNet and corpus data. Optionally bias results toward a specific topic.
| Name | Type | Req | Description |
|---|---|---|---|
| max | number | – | Maximum number of results (1-50, default: 10) |
| topic | string | – | Optional topic to bias results (e.g., 'music', 'medical') |
| word | string | yes | The word to find synonyms for |
No output schema declared.
No examples provided.
get_word_info ~48
Get detailed information about a word including: definitions, part of speech, syllable count, pronunciation (IPA), and usage frequency.
| Name | Type | Req | Description |
|---|---|---|---|
| word | string | yes | The word to get information about |
No output schema declared.
No examples provided.
How do I install the Datamuse MCP server?
Datamuse MCP runs locally as an npm package, launched with npx -y datamuse-mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · datamuse-mcp
claude mcp add lacausecrypto-datamuse-mcp -- npx -y datamuse-mcp
What is the Datamuse MCP server?
Datamuse MCP is listed in the public MCP registry as io.github.lacausecrypto/datamuse-mcp. MCP server for Datamuse word-finding API. This page covers its npm package (datamuse-mcp).
Is the Datamuse MCP server safe to use?
Datamuse MCP scores 80 out of 100 on VerifyMCP. We recorded 1 known advisory against it as of 4 November 2026. 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 tools does the Datamuse MCP server expose?
Datamuse MCP exposes 10 tools: find_synonyms, find_antonyms, find_rhymes, find_similar_sounding, find_by_pattern, and 5 more. Their descriptions and schemas cost roughly 843 tokens of context every time the server is loaded.
Is the Datamuse MCP server still maintained?
Datamuse MCP is still listed as active in the MCP registry. We last reached this channel on 4 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 Datamuse MCP server under?
Datamuse MCP declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.