ipybox
★ 74
vs
semble
★ 4.5k
ipybox vs semble
ipybox: ipybox is a Python code execution sandbox with first-class support for programmatic MCP tool calling. It generates typed Python tool APIs from MCP server tool schemas, supporting both local stdio and remote HTTP servers. Code executes in a sandboxed IPython kernel with MCP tool call approval for security.; semble: Semble is a high-performance code search library designed for AI agents, providing instant access to precise code snippets. It offers significantly faster indexing and querying compared to transformer models, achieving 99% of their retrieval quality while running entirely on CPU without external dependencies.
01
TL;DR
Choose ipybox if…Building agent applications that act through Python code (code actions)
Choose semble if…Enhancing AI agents (e.g., Claude Code, Cursor, Codex) with fast and accurate code search capabilities
02
Side-by-Side Comparison
03
Features
ipybox01Stateful code execution across IPython kernel sessions
02Lightweight sandboxing via Anthropic's sandbox-runtime
03Programmatic MCP tool calling from Python code
04MCP tool call approval at the application level
05Local code execution with no cloud dependencies
semble01Fast performance on CPU (indexes in ~250ms, queries in ~1.5ms)
02High accuracy (NDCG@10 of 0.854), comparable to transformer models
03Supports indexing local paths and remote Git repositories
04Functions as an MCP server for various AI agents
05Zero setup, no API keys, GPU, or external services required
04
Use Cases
ipybox↳Building agent applications that act through Python code (code actions)
↳Using ipybox as a Python SDK for custom applications
↳Exposing ipybox as an MCP server for code execution and tool calling
semble↳Enhancing AI agents (e.g., Claude Code, Cursor, Codex) with fast and accurate code search capabilities
↳Searching local or remote codebases for specific code snippets based on natural language or code queries
↳Finding semantically similar code sections related to a given file path and line number
05
Best For
ipyboxHidden GemDev Tooling
sembleCode AssistantRAG / Knowledge Base
FAQ
FAQ
What is the difference between ipybox and semble?
Both ipybox and semble are in the Dev Tooling category. ipybox has 74 stars, while semble has 4.5k stars.
Which is better, ipybox or semble?
The best choice depends on your use case. Choose ipybox if Building agent applications that act through Python code (code actions), and semble if Enhancing AI agents (e.g., Claude Code, Cursor, Codex) with fast and accurate code search capabilities.
Is ipybox free or open source?
Yes, ipybox is open source on GitHub (Apache-2.0).
Is semble free or open source?
Yes, semble is open source on GitHub (MIT).
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