Overview

The Uuid MCP Server Example is a minimal, purpose‑built Model Context Protocol (MCP) server that generates universally unique identifiers (UUIDs), specifically RFC 4122 version 4. It addresses a common need in AI‑powered workflows: the ability to create reliable, globally unique tokens on demand without external dependencies. By exposing a simple “generate‑uuid” endpoint, the server allows AI assistants and other MCP clients to request fresh identifiers in a stateless, secure manner.

What the Server Solves

In many applications—ranging from database record creation to session management and distributed tracing—developers require a lightweight way to produce unique keys that can be shared across services. Traditional approaches might involve invoking cloud‑based ID generators or embedding UUID logic directly into each application layer, which can lead to duplication of code and inconsistent handling. This MCP server centralizes the UUID generation logic, ensuring that every client receives a properly formatted v4 UUID and reducing boilerplate across the codebase.

Core Functionality

The server exposes a single resource: a request that triggers UUID generation. When an MCP client sends the appropriate message, the server responds with a freshly minted 128‑bit identifier expressed as a string in canonical form (e.g., ). Because the operation is deterministic and stateless, it can be safely scaled horizontally; multiple instances will each produce distinct UUIDs without coordination.

Key Features

• Statelessness: No internal state or database is required, simplifying deployment and scaling.
• Standard Compliance: Generates RFC 4122 compliant v4 UUIDs, ensuring compatibility with existing libraries and services.
• MCP Compatibility: Adheres to the MCP protocol, making it plug‑in ready for Claude or any other MCP‑aware assistant.
• Low Latency: UUID generation is computationally trivial, resulting in near‑instant responses suitable for real‑time applications.

Use Cases

• Database Seeding: Automatically assign unique primary keys when inserting new records from an AI assistant.
• Session Tokens: Generate session identifiers for user interactions that need to be shared across microservices.
• Audit Trails: Tag events or logs with unique IDs to trace actions performed by AI agents.
• Distributed Systems: Coordinate tasks or messages in a message‑queue architecture where each item must be uniquely identifiable.

Integration into AI Workflows

An AI assistant can invoke the server via a simple MCP call, receiving a UUID in its response payload. The assistant can then embed that identifier into subsequent prompts, database queries, or API calls. Because the server is protocol‑agnostic beyond MCP, it can be deployed behind a standard HTTP or gRPC interface and integrated into CI/CD pipelines, serverless functions, or containerized environments without modification.

Unique Advantages

Unlike embedding UUID logic in client code, this server offers a single source of truth for identifier generation. It eliminates the risk of collisions caused by mis‑implemented libraries, provides a consistent format across heterogeneous systems, and leverages MCP’s native tool invocation capabilities to keep AI workflows clean and declarative. For developers building complex, multi‑service applications that rely on AI assistants, this server delivers a dependable, scalable solution for generating unique identifiers—an often overlooked but critical component of modern software infrastructure.