Click on "Deploy Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type @ followed by the MCP server name and your instructions, e.g., "@Cambridge Dictionary MCP Server define 'serendipity'"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
A dictionary server supporting the Model Context Protocol (MCP).
Retrieves word meanings from the Cambridge Dictionary.
To integrate the MCP server into your command line, add the following configuration:
"mcp-server-cambridge-dict": {
"command": "npx",
"args": ["-y", "mcp-server-dictionary"],
"disabled": false
}Related MCP server: Dictionary By Api Ninjas
Seamless integration with Claude and other AI assistants via the MCP protocol.
Robust dictionary query tools.
Retrieves word meanings from the Cambridge Dictionary.
Install the required dependencies:
npm installBuild the server for production:
npm run buildEnable auto-rebuild during development:
npm run watchStart the MCP server with the following command:
npm run start:mcpTo test the server, use the MCP Inspector:
npm run inspectorThis server adheres to the MCP response specification.
A successful word query returns the following format:
{
"content": [
{
"type": "text",
"text": "Word query result (in JSON format)"
}
]
}In case of an error, the response format is:
{
"content": [
{
"type": "text",
"text": "Error message"
}
],
"isError": true
}lookup_wordFetches the pronunciation, definition, and example sentences for a word.
word (string): The word to query.
Detailed information about the word, including pronunciation, definition, and example sentences.
| Name | Required | Description | Default |
|---|---|---|---|
| word | Yes | The word to look up |
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Tool has no description.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Tool has no description.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Tool has no description.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Tool has no description.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
Tool has no description.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
Tool has no description.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
v1.0.0lookup_wordScored across 1 tool
With only one tool, there is no possibility of confusion or overlap between tools. The tool 'lookup_word' stands alone with a clear, singular purpose.
A single tool inherently has perfect naming consistency, as there are no other tools to compare against. The name 'lookup_word' follows a clear verb_noun pattern.
A single tool for a dictionary server is too minimal for the apparent scope, as it lacks basic operations like searching, listing, or handling multiple languages. This severely limits functionality and feels incomplete.
The tool surface is severely incomplete for a dictionary domain, offering only word lookup with no descriptions, synonyms, antonyms, examples, or related operations. This will cause frequent agent failures for common dictionary tasks.
Provides AI assistants with access to Seltz's powerful Web Search capabilities.
Dictionary MCP — wraps Free Dictionary API (free, no auth)
Build dictionaries & glossaries with AI: entries, senses, versions, print PDF, EPUB, web reader, RTL
Enable AI assistants to perform web searches using Perplexity's Sonar Pro.
