AgentIndex icon
AgentIndex
Gemini CLI logo
Gemini CLI
★ 107.5k
vs
build123d-mcp logo
build123d-mcp
★ 125

Gemini CLI vs build123d-mcp

Gemini CLI: Gemini CLI is Google's open-source AI agent for the terminal, providing direct access to Gemini models with a free tier of 60 requests/minute and 1,000/day. It ships with built-in tools for Google Search grounding, file operations, shell command execution, and web fetching, plus native MCP support for custom integrations. Built for developers who work primarily in the command line.; build123d-mcp: build123d-mcp is an MCP server that exposes build123d CAD operations as tools, allowing AI assistants to interactively build, inspect, and iterate on 3D geometry. It closes the feedback loop for AI writing build123d scripts, enabling them to create geometry, render views, query dimensions, and catch errors incrementally.

01

TL;DR

Gemini CLI logo
Gemini CLICode Assistant · ★ 107.5k
When to choose:
  • You want an Apache-2.0 terminal coding and task agent from Google with a generous free tier using a personal Google account.
  • You want built-in file editing, shell execution, Google Search grounding, MCP server support, and a GitHub Action for CI.
When to skip:
  • You want to switch freely between Claude, OpenAI, DeepSeek, and local Ollama models inside the same terminal agent; Open Interpreter supports any OpenAI-compatible provider.
  • You prefer a graphical desktop workspace over a command-line interface; AionUi or Cherry Studio provide GUI clients.
Read Gemini CLI full review →
build123d-mcp logo
build123d-mcpCode Assistant · ★ 125

AI-driven CAD design and iteration: Enable AI assistants to generate and refine 3D models interactively with real-time feedback.

Read build123d-mcp full review →
02

Side-by-Side Comparison

Field
Gemini CLI logoGemini CLI
build123d-mcp logobuild123d-mcp
Category
Code Assistant
Code Assistant
Stars
★ 107.5k
★ 125
License
Apache-2.0
Apache-2.0
Install Command
npm install -g @google/gemini-cli
pip install build123d-mcp
Updated
1d ago
1w ago
Open Source
Yes
Yes
Website
↗ Visit
↗ Visit
GitHub
↗ GitHub
↗ GitHub
Tags
CLI, AI Agent, Gemini
CAD, 3D Modeling, AI Tools
03

Features

Gemini CLI logoGemini CLI
01Free tier: 60 req/min and 1,000 req/day with a personal Google account
02Built-in tools: Google Search grounding, file ops, shell commands, web fetch
03Native MCP support for custom tool integrations
04Access to Gemini 3 models with 1M token context window
05Open source under Apache 2.0 license
build123d-mcp logobuild123d-mcp
01Run and manage build123d CAD sessions with persistent state and snapshots.
02Perform comprehensive geometry inspection, including measuring properties, clearance, cross-sections, and printability analysis.
03Generate interactive 3D views and 2D engineering drawings for visualization and documentation.
04Securely execute LLM-generated code within a sandboxed Python environment with robust security features.
05Access integrated CAD quick references, selector guides, drafting cookbooks, and a parametric part library.
04

Use Cases

Gemini CLI logoGemini CLI
↳Running AI-assisted development tasks directly in the terminal without switching contexts
↳Automating shell workflows with natural language instructions and real-time web grounding
↳Extending terminal AI capabilities with custom MCP servers for project-specific tools
build123d-mcp logobuild123d-mcp
↳AI-driven CAD design and iteration: Enable AI assistants to generate and refine 3D models interactively with real-time feedback.
↳Automated geometric verification and error detection: Detect design flaws such as voids, thin walls, or alignment issues in 3D models.
↳Printability analysis for additive manufacturing: Evaluate 3D models for FDM printability, identifying overhangs, thin walls, and tip-over risks.
↳Programmatic generation and inspection of engineering drawings: Automatically create and validate 2D engineering drawings from 3D models.
↳Integration of parametric part libraries: Search and load parametric parts (e.g., fasteners) from `bd_warehouse` into CAD designs.
05

Best For

Gemini CLI logoGemini CLI
Most PopularEssentialTrending
build123d-mcp logobuild123d-mcp
—
FAQ

FAQ

What is the difference between Gemini CLI and build123d-mcp?
Both Gemini CLI and build123d-mcp are in the Code Assistant category. Gemini CLI has 107.5k stars, while build123d-mcp has 125 stars.
Which is better, Gemini CLI or build123d-mcp?
The best choice depends on your use case. Choose Gemini CLI if Running AI-assisted development tasks directly in the terminal without switching contexts, and build123d-mcp if AI-driven CAD design and iteration: Enable AI assistants to generate and refine 3D models interactively with real-time feedback..
Is Gemini CLI free or open source?
Yes, Gemini CLI is open source on GitHub (Apache-2.0).
Is build123d-mcp free or open source?
Yes, build123d-mcp is open source on GitHub (Apache-2.0).
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