How to Use the UUID & ULID Generator MCP in Mastra AI

Q: Can Mastra AI handle generating UUIDs with the MCP Server?

Yes, it can. The agent calls generateuuid, which returns a standard 128-bit identifier conforming to RFC 4122. This is one of the most reliable functions for guaranteeing uniqueness.

Q: What unique ID types does UUID & ULID Generator support in Mastra AI?

It supports both time-sortable ULIDs via generateulid and cryptographically random v4 UUIDs. The server ensures the integrity of both formats, making your failure handling robust.

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Setup UUID & ULID Generator with Mastra AI

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Guaranteed ID Generation for Multi-Step Workflows

When your workflow needs to record a new entity, don't risk fake IDs. Use `generate_uuid` within an MCPServer step to get a standard 128-bit RFC 4122 UUID. Mastra AI handles this call reliably, even across conditional branches. If the process requires chronological sorting for the database key, simply switch to `generate_ulid`. The workflow engine uses the resulting time-ordered ULID as part of its state management.

Controlling State with MCP Server ID Tools

Complex workflows need reliable data points. This MCP Server provides two tools: `generate_uuid` and `generate_ulid`. You can set the output of a tool call (like an identifier) as input for a subsequent action, ensuring continuity across retries. The ability to use these generators lets you track exactly which unique ID was created at which stage, improving fault tolerance in your deployment.

Using UUID & ULID Generator with Mastra AI

The `generate_ulid` function is perfect for establishing a primary key that maintains time-sortability across multiple operational steps. You can configure the workflow to call this tool before writing data. For simple, non-time-sensitive lookups, `generate_uuid` provides sufficient cryptographic randomness and adherence to standards. Mastra AI makes calling these tools part of its standard retry loop.

Setup guide

Set up UUID & ULID Generator MCP in Mastra AI

Prerequisites

Node.js 18+ and a TypeScript project
@mastra/mcp + @mastra/core packages
Active Vinkius subscription with a valid endpoint token

1

Install dependencies
Run npm install @mastra/mcp @mastra/core plus your preferred model provider (e.g. @ai-sdk/openai).
2

Configure the MCPClient
Create an MCPClient with your Vinkius endpoint as a URL object. Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com.
3

Discover and inject tools
Call mcpClient.listTools() and spread the result into your agent's tools object. All UUID & ULID Generator tools become native Mastra tools.
4

Run with any model
Swap openai("gpt-4o") for any AI SDK-compatible provider. Call agent.generate() and the agent routes tool calls through MCP automatically.

agent.ts

import { MCPClient } from "@mastra/mcp";
import { Agent } from "@mastra/core/agent";
import { openai } from "@ai-sdk/openai";

const mcpClient = new MCPClient({
  id: "uuid-ulid-generator-mcp-client",
  servers: {
    "uuid-ulid-generator-mcp": {
      url: new URL(
        "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
      ),
    },
  },
});

const agent = new Agent({
  name: "UUID & ULID Generator Agent",
  model: openai("gpt-4o"),
  instructions: "You have access to UUID & ULID Generator tools.",
  tools: {
    ...(await mcpClient.listTools()),
  },
});

const result = await agent.generate(
  "List recent UUID & ULID Generator transactions"
);
console.log(result.text);

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Common questions about UUID & ULID Generator MCP in Mastra AI

It guarantees that every record created within a multi-step workflow gets a mathematically perfect ID. You can use `generate_ulid` to ensure the primary key is chronologically sortable, which is critical for auditing.

Yes, it can. The agent calls `generate_uuid`, which returns a standard 128-bit identifier conforming to RFC 4122. This is one of the most reliable functions for guaranteeing uniqueness.

It supports both time-sortable ULIDs via `generate_ulid` and cryptographically random v4 UUIDs. The server ensures the integrity of both formats, making your failure handling robust.

It is fully compatible. If a step fails and retries, you can rely on generating fresh, unique identifiers using the MCP Server's tools, ensuring state doesn't degrade.

The server generates universally unique identifiers (UUIDs and ULIDs). These are structural strings used for tracking records; they do not contain any personal identifying information.

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