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tanker327

UUID MCP Provider

by tanker327
OverviewSchemaRelated ServersScoreDiscussions
TypeScript
Hybrid

UUID MCP Provider

A simple Model Context Protocol (MCP) server that provides timestamp-based UUIDs whenever it's called by an LLM.

Features

  • Provides a single tool: generateUuid

  • Uses UUID v7 for timestamp-based unique identifiers

  • Simple interface with no input parameters needed

  • Easy integration with Claude and other LLMs

Related MCP server: MCP UUID Server

Installation

# Install dependencies
npm install

# Build the project
npm run build

Usage

You can run the server directly:

npm start

Integration with Claude Desktop

To integrate with Claude Desktop, add this to your Claude Desktop configuration file:

  • macOS: ~/Library/Application Support/Claude/claude_desktop_config.json

  • Windows: %APPDATA%\Claude\claude_desktop_config.json

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

Replace /absolute/path/to/uuid-mcp/build/index.js with the absolute path to your built index.js file.

After updating the configuration, restart Claude Desktop to see the UUID generation tool available.

How It Works

This server uses the official uuid package to generate UUID v7 identifiers. UUID v7 is specifically designed to be timestamp-based while maintaining strong uniqueness guarantees:

  • Incorporates a Unix timestamp in millisecond precision

  • Adds randomized data to ensure uniqueness even when multiple IDs are generated in the same millisecond

  • Follows the latest RFC standards for UUID generation

  • Provides chronologically sortable identifiers

  • Prevents collisions in distributed systems

This approach is more reliable than custom UUID implementations and eliminates the potential for duplicates even under high load.

Dependencies

  • @modelcontextprotocol/sdk: For MCP server implementation

  • uuid: For RFC-compliant UUID generation

  • TypeScript and related tools for development

Example

When called, the tool returns a UUID v7 string that looks like:

018e94d2-279b-7bd3-9289-80d1e6619670

The first part of the UUID contains the timestamp, making these identifiers chronologically sortable while still maintaining the standard UUID format.

Available Tools

1 tool
generateUuidA

Generate a UUID v7 that's timestamp-based and guaranteed to be unique

ParametersJSON Schema
NameRequiredDescriptionDefault

No parameters

TDQS

A4/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden. It discloses that the tool generates a UUID v7 (implying a read-only operation that produces output) and specifies it's 'timestamp-based' and 'guaranteed to be unique', which adds useful behavioral context. However, it doesn't mention potential side effects, error conditions, or performance characteristics, leaving some gaps.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single, efficient sentence that directly states the tool's function and key attributes ('timestamp-based', 'guaranteed to be unique'). It is front-loaded with the core purpose and avoids any unnecessary words, making it highly concise and well-structured.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's simplicity (0 parameters, no output schema, no annotations), the description is nearly complete for its context. It clearly explains what the tool does and key behavioral traits. A minor deduction is made because it doesn't specify the output format or any usage constraints, but overall it's sufficient for a basic generation tool.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The input schema has 0 parameters with 100% coverage, so no parameter documentation is needed. The description appropriately focuses on the tool's purpose without redundant parameter details, earning a baseline score of 4 for effectively handling a parameterless tool.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the specific action ('Generate') and resource ('UUID v7'), with additional specificity about it being 'timestamp-based' and 'guaranteed to be unique'. It fully distinguishes what the tool does without any sibling tools to differentiate from.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies usage context through 'timestamp-based' and 'guaranteed to be unique', suggesting it's suitable for scenarios requiring time-ordered unique identifiers. However, it lacks explicit guidance on when to use this tool versus alternatives, and there are no sibling tools mentioned to provide comparative context.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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TDQS

A3.9/5.0
Disambiguation5/5

With only one tool, there is no possibility of ambiguity or overlap between tools. The single tool has a clear, distinct purpose that cannot be confused with any other tool in the set.

Naming Consistency5/5

A single tool inherently has perfect naming consistency, as there are no other tools to compare it against. The tool name 'generateUuid' follows a clear verb_noun pattern and stands alone without any conflicting conventions.

Tool Count2/5

A single tool is too few for most practical server purposes, making the set feel thin and limited. While generating UUIDs is a straightforward task, a server with only one tool lacks the breadth typically expected for agent workflows, even for a simple domain like UUID generation.

Completeness3/5

For the narrow domain of UUID generation, the tool provides the core functionality (generate a UUID v7). However, there are notable gaps, such as no tools for generating other UUID versions (e.g., v4), validating UUIDs, or parsing UUIDs, which limits agent flexibility in handling UUID-related tasks.

Maintenance

ActivityInactive
ResponsivenessNo issues

Resources

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    A simple Model Context Protocol server that provides timestamp-based UUID v7 identifiers when called by an LLM, offering chronologically sortable unique IDs with no input parameters needed.
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  • UUIDv7 Generator

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