About
MCP server for Datamuse word-finding API
Security Report
Valid MCP server (3 strong, 4 medium validity signals). 2 known CVEs in dependencies (0 critical, 2 high severity) Package registry verified. Imported from the Official MCP Registry.
10 files analyzed · 3 issues found
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
Permissions Required
This plugin requests these system permissions. Most are normal for its category.
How to Install
Add this to your MCP configuration file:
{
"mcpServers": {
"io-github-lacausecrypto-datamuse-mcp": {
"args": [
"-y",
"datamuse-mcp"
],
"command": "npx"
}
}
}Documentation
View on GitHubFrom the project's GitHub README.
datamuse-mcp
MCP server for the Datamuse API (word search, rhymes, synonyms, and more).
This project is open source, free to use, and licensed under MIT.
About
datamuse-mcp is a local stdio MCP server that wraps Datamuse endpoints into validated MCP tools.
It is designed for practical word-finding use cases in assistants and clients that support MCP.
Purpose
This server provides simple MCP tools to:
- find synonyms, antonyms, and rhymes;
- run autocomplete;
- fetch lexical details (definitions, POS, syllables, pronunciation, frequency);
- search by spelling pattern (
*,?) or phonetic similarity.
Requirements
- Node.js
>= 18 - npm
Install
npm install
Development
npm run dev
Build & run
npm run build
npm start
Manual JSON-RPC checks
# List tools
echo '{"jsonrpc":"2.0","id":1,"method":"tools/list"}' | node dist/index.js
# Call a tool
echo '{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"find_synonyms","arguments":{"word":"happy"}}}' | node dist/index.js
More tool examples
{ "tool": "find_antonyms", "arguments": { "word": "happy", "max": 10 } }
{ "tool": "find_rhymes", "arguments": { "word": "love", "type": "perfect", "max": 20 } }
{ "tool": "find_similar_sounding", "arguments": { "text": "definately", "max": 15 } }
{ "tool": "find_by_pattern", "arguments": { "pattern": "s??r?", "meaning_hint": "celestial", "max": 25 } }
{ "tool": "find_related_words", "arguments": { "word": "music", "relation_type": "triggers", "max": 15 } }
{ "tool": "get_word_info", "arguments": { "word": "serendipity" } }
{ "tool": "autocomplete", "arguments": { "prefix": "astro", "max": 10 } }
Claude Desktop configuration
Add this to claude_desktop_config.json:
{
"mcpServers": {
"datamuse": {
"command": "node",
"args": ["/absolute/path/to/datamuse-mcp/dist/index.js"]
}
}
}
Exposed tools
find_synonymsfind_antonymsfind_rhymesfind_similar_soundingfind_by_patternfind_related_wordsfind_adjectives_for_nounfind_nouns_for_adjectiveget_word_infoautocomplete
Security and limits
- The server runs over
stdio(local usage recommended). - Outbound requests go to
https://api.datamuse.com. - A local in-memory cache is used (5-minute TTL), with no disk persistence.
- Datamuse may enforce request limits/quotas.
Publishing
For npm and MCP Registry deployment, see PUBLISHING.md.
Contributing
See CONTRIBUTING.md.
License
MIT — see LICENSE.
Reviews
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