Datamuse

live Linguistics

English word-relation lookup — synonyms, rhymes, "sounds like", "spelled like", predictive completion. Keyless.

7 tools
0ms auth
free tier 50 calls/day

Tools

words

Generic Datamuse query.

Parameters
Name Type Description
means_like opt string —
sounds_like opt string —
spelled_like opt string —
follows opt string —
precedes opt string —
related opt string —
topics opt string —
max opt number —
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means_like required: word

Synonyms / semantic relatives.

Parameters
Name Type Description
word req string —
max opt number —
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rhymes required: word

Perfect or approximate rhymes.

Parameters
Name Type Description
word req string —
perfect opt boolean —
max opt number —
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sounds_like required: word

Phonetic neighbors.

Parameters
Name Type Description
word req string —
max opt number —
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spelled_like required: pattern

Wildcard-pattern matches.

Parameters
Name Type Description
pattern req string —
max opt number —
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predicts_next required: after

Autocomplete prediction.

Parameters
Name Type Description
after req string —
before opt string —
max opt number —
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homophones required: word

Same pronunciation, different spelling.

Parameters
Name Type Description
word req string —
max opt number —
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Test with curl

The gateway speaks JSON-RPC 2.0 over HTTP POST. You can test any pack directly from the terminal.

List available tools
bash 
curl -X POST https://gateway.pipeworx.io/datamuse/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'
Call a tool
bash 
curl -X POST https://gateway.pipeworx.io/datamuse/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"words","arguments":{}}}'

Use with the SDK

Install @pipeworx/sdk to call tools from any TypeScript/Node project.

TypeScript 
import { Pipeworx } from '@pipeworx/sdk';
const px = new Pipeworx();
const result = await px.call("words", {});
ask_pipeworx 
// Or ask in plain English:
const answer = await px.ask("english word-relation lookup — synonyms, rhymes, "sounds like", "spelled like", predictive completion");