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drand-mcp-server 🎲

@randa-mu

Repository

About drand-mcp-server 🎲

A model context protocol server for drand

Basic information

Category

Other

License

MIT license

Runtime

node

Transports

stdio

Publisher

randa-mu

Config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "drand": {
      "command": "npx",
      "args": [
        "drand-mcp-server"
      ]
    }
  }
}

Tools

2

none

time in milliseconds

Overview

What is drand-mcp-server?

drand-mcp-server is a Model Context Protocol (MCP) server that lets AI applications fetch verifiable randomness from the drand network. It provides tools to get the latest beacon, a beacon by round, or a beacon by timestamp, and use that randomness as an input seed in model-driven flows.

How to use drand-mcp-server?

Run the server via npx drand-mcp-server or build from source (npm install && npm run build) and then run node ./dist/index.mjs. Configure it as an MCP server in VS Code (.vscode/mcp.json) or Claude Desktop (claude_desktop_config.json) by setting the command and args as shown in the README.

Key features of drand-mcp-server

  • Fetch the latest random beacon from drand Quicknet.
  • Retrieve a beacon by a specific round number.
  • Get the beacon emitted at or just before a given timestamp.
  • All randomness is cryptographically verifiable.
  • Built for integration with AI tools via the MCP protocol.

Use cases of drand-mcp-server

  • Repeatable, random sampling of input data.
  • Verifiable interaction with other MCP servers (e.g., paying out rewards based on a prompt).
  • Verifying the output of another random process using historical drand beacons.

FAQ from drand-mcp-server

What runtime does drand-mcp-server require?

Node.js version 21 or later (the fetch API is required).

How do I obtain a randomness beacon for a specific time?

Use the get-randomness-by-time tool with a time parameter in milliseconds; it returns the beacon emitted at or just before that time.

Does drand-mcp-server store any data locally?

No. The server fetches beacons directly from the drand network and does not persist data locally.

Which transport protocol does drand-mcp-server use?

The README describes command‑line execution (stdio) for VS Code and Claude Desktop; no other transport (e.g., HTTP or WebSocket) is mentioned.

Is authentication required to use drand-mcp-server?

No authentication or API keys are mentioned in the README. The server connects to the public drand Quicknet.

Comments

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