Datamuse MCP Server

MCP server for Datamuse word-finding API

Local serverstdioGo

What is the Datamuse MCP MCP server?

If you already use Datamuse MCP, the datamuse mcp mcp server is the piece that lets your assistant work with it directly. MCP server for Datamuse word-finding API.

What the server does

MCP server for the Datamuse API (word search, rhymes, synonyms, and more).

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.

Available tools

The toolset is worth reading before you wire it up, because it tells you what the integration is really for:

  • find_synonyms — find_antonyms
  • find_rhymes — find_similar_sounding
  • find_by_pattern — find_related_words
  • find_adjectives_for_noun — find_nouns_for_adjective
  • get_word_info — autocomplete

Installation

Setup follows the usual MCP pattern — install or clone the server, register it in your client's configuration file, restart the client. The configuration blocks on this page cover the common clients.

Credentials and setup notes

  • Node.js >= 18 - npm

Where it fits

Plenty of developer tooling servers cover similar ground. The differences that matter in practice are scope of access and how much setup stands between you and a working tool call. Datamuse MCP's toolset — find_synonyms, find_rhymes, find_by_pattern and 2 more — is a fair guide to whether it matches your workflow. It is maintained by lacausecrypto; worth a glance at recent repository activity before you build anything load-bearing on it.

We check each listing at SyncDev against the project's documentation before it goes live — if something here drifts out of date, it is a bug worth reporting.

Worth knowing first

  • It runs with your machine's permissions. That is convenient and also the reason to think about what you point it at before you approve a tool call.
  • Keep per-call confirmation enabled while you learn its behaviour; it is the cheapest safeguard you have.

Available tools

ToolWhat it does
find_synonymsfind_antonyms
find_rhymesfind_similar_sounding
find_by_patternfind_related_words
find_adjectives_for_nounfind_nouns_for_adjective
get_word_infoautocomplete

How to install the Datamuse MCP MCP server

{
  "mcpServers": {
    "datamuse": {
      "command": "node",
      "args": ["/absolute/path/to/datamuse-mcp/dist/index.js"]
    }
  }
}

Configuration as documented by the project. Restart the client after saving.

Configuration

  • Node.js >= 18 - npm

Example prompts to try

  • Use Datamuse MCP to find synonyms.
  • Use Datamuse MCP to find rhymes.
  • Use Datamuse MCP to find by pattern.

Frequently asked questions

It connects Datamuse MCP to MCP-compatible AI assistants such as Claude and Cursor, exposing 5 tools (find_synonyms, find_rhymes, find_by_pattern, and more) that the assistant can call on your behalf. Instead of copying data back and forth by hand, the assistant works with Datamuse MCP directly.