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Ducklab MCP Server

local only

Ducklab runs on your own machine — the client starts it, so there is no endpoint to ping. Last commit 31 Oct 2026.

Multi-LLM dev harness, MCP-operable: bugs, cycles, gates. Verdicts are exit codes, never opinions.

—
Installs / week
not published
11
Stars
3 open issues
31 Oct 2026
Last commit
from GitHub
Apache-2.0
License
Go

What the code does

We read the source, 8 d ago · rules 995398eba69f

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

Long encoded blob in source frontend/src/lib/attention.ts:138
  "UklGRoZHAABXQVZFZm10IBAAAAABAAEAwF0AAIC7AAACABAATElTVBoAAABJTkZPSVNGVA4AAABMYXZmNjAuMTYuMTAwAGRhdGFARwAANAI+AkICmAKTAgsCAwLJAccBEgItAoQCcwJ+Ao0CdgJ0AmACeQK5As4CxgL4AikDPAMcAwMDoAJkAioCmQE8AVYBzwFeApYC8QLYAswCyQJVAsoBiwHQAeAB0wH8AV0CdAJWAjUC3QF4AV0BowHkATICmAK4Ar0CNgLCAWABQwEUA…

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Three servers free · no card

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Ducklab — questions

Answers built from our own checks of this server.

Why is there no uptime for Ducklab?
Ducklab runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone.
Is Ducklab open source?
Yes — it is published under the Apache-2.0 licence, written in Go, 11 stars on GitHub and 3 open issues. The source link is on this page, so you can read exactly what it does with your data before you connect it.