get-randomness-by-round
Get the random value associated with a specfic round from drand quicknet
LABSCO SUMMARY
Randomness that came from somewhere checkable.
A model asked for a random number produces something that only looks random. These calls return a drand beacon with a round number attached, so anyone can go back to the network and confirm the same value came out.
What it is
An MCP server for the drand quicknet randomness beacon. Three tools: the latest beacon, the beacon for a given round number, and the beacon emitted at or just before a given time.
What you get
- The latest random value from drand quicknet
- The value for a specific round number
- The value emitted at or just before a given moment
Requirements
Node v21 or newer - the server uses fetch. Nothing else: no account, no key. Run it with npx, or build from source and point your client at dist/index.mjs.
Setup effort
One command — npx drand-mcp-server
USE CASES
01
Picking a sample someone else can reproduce
Seed the selection from a named round, and publish the round number with the result.
02
Drawing a winner in public
Take the latest beacon at the moment of the draw, so the value did not exist beforehand.
03
Checking a draw that already happened
Fetch the beacon for that time or that round and compare it against what was published.
04
Seeding a simulation you will need to rerun
Record the round number with the run; fetching it again reproduces the same seed.
05
Auditing another process that claimed to be random
Pull the beacon for the moment it ran and check its output against it.
3 tools
Counted once with only startup setup. Other versions, modes or optional credentials may expose a different list.
get-randomness-by-time
Get the random value associated with a specific time from drand quicknet
get-randomness-latest
Get the latest random value from drand quicknet
BEFORE YOU INSTALL
What to know first
Tools you get
3 tools when we connected.
Requires
npx on PATH
CONTEXT COST
Light Standing cost
Rated by the size of the 3 tool definitions that ride along on every turn, not by how many there are
INSTALLATION
Connect your client
Add the block to your client, or run the command directly.
Server setup
Configuration file
JSON
{
"mcpServers": {
"drand-mcp-server": {
"command": "npx",
"args": [
"drand-mcp-server"
]
}
}
}npx
TERMINAL
npx drand-mcp-server
