workflowstacks
mcp-server

ducke: Build Visual Data Pipelines Locally with 1.5k+ GitHub Stars

Empower your startup to design, run, and monitor ETL/ELT workflows without cloud lock‑in, using 290+ connectors, dbt and on‑device AI on DuckDB. Ideal for data‑engineers and founders seeking low‑code, self‑hosted pipelines.

From the repo · “Open-source ETL/ELT you deploy on your own servers or cloud. Built on DuckDB: no-code/low-code visual pipelines or SQL, 385 components, dbt, CDC, data quality, reverse ETL, lineage, MCP for AI agents. No vendor cloud, no per-row billing.”

1,521 stars+19★ this week120 forksRustGuide quality 9/10 · reviewed Oct 20Updated 10/14/2026100% free · open source
What it does

Duckle streamlines data workflows by providing a local-first data integration platform with visual data pipelines, 290+ connectors, and support for dbt and on-device AI, all running on DuckDB.

When to use it
  • •When you need to integrate data from multiple sources without relying on cloud services
  • •When you require a high degree of control over your data pipelines and workflows
  • •When you want to leverage the power of dbt and on-device AI for data transformation and analysis
Ready-to-paste prompt
Create a new project and run the command `duckdb 'SELECT * FROM my_table;'` to query a sample dataset
Heads up: Make sure you have Rust and Cargo installed on your system, as Duckle is built using Rust and requires these tools to run
Saves to your device
Use with Claude
New

Skip the builder — one click puts this in Claude, Cursor, Antigravity and more.

✅ Light setup

Installs with a command or two; your AI agent can do it for you.

Try it instantly — no install
Claude Code
mkdir -p ~/.claude/skills/duckle && curl -fsSL https://workflowstacks.com/api/skills/duckle/claude-skill -o ~/.claude/skills/duckle/SKILL.md
Open in another AI app

Opens the app with this repo with the prompt ready to go — no copy-paste needed.

Connect the whole catalog (MCP)
claude mcp add --transport http workflowstacks https://workflowstacks.com/api/mcp

Adds a WorkflowStacks connector to Claude Code: search and load any skill here by chatting.

What's inside — free to inspect

No purchase needed

Read the entire source before you build — unlike paid marketplaces that hide it behind a buy button.

22
top-level files
14
folders
107.0M
source size
Apache-2.0
license
Key files
.editorconfig
README.md
File tree
.cargo/
.github/
apps/
benchmarks/
branding/
crates/
docs/
examples/
frontend/
marketing/
packaging/
samples/
scripts/
website/
.all-contributorsrc
.dockerignore
.editorconfig
.gitattributes
.gitignore
.gitlab-ci.yml
build.cmd
Cargo.lock
Cargo.toml
CODE_OF_CONDUCT.md
Quick Actions
Details
Creator
slothflowlabs
Language
Rust
Category
mcp-server
Published
5/21/2026

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Featured on WorkflowStacks
[![Featured on WorkflowStacks](https://workflowstacks.com/api/badge/duckle.svg)](https://workflowstacks.com/skills/duckle?utm_source=github&utm_medium=badge)
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