onlyboxes
★ 24
vs
semble
★ 4.5k
onlyboxes vs semble
onlyboxes: Onlyboxes is a self-hosted code execution sandbox platform for individuals and small teams. It uses a control-plane and execution-plane architecture, supports horizontal scaling and multi-language heterogeneous runtimes. It provides REST APIs and MCP tools for executing Python code and stateful terminal sessions.; 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 onlyboxes if…Safely execute untrusted code in isolated environments for development and testing
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
onlyboxes01Self-hosted all components: console and worker
02Separated control and execution planes with horizontal scaling, multi-language heterogeneous implementations, and multiple runtimes
03Full account system with resource isolation (stateful containers, sessions) between accounts
04MCP tools: pythonExec, terminalExec, and readImage
05REST API for all MCP tools with async task support
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
onlyboxes↳Safely execute untrusted code in isolated environments for development and testing
↳Collaborate with small teams by sharing sandboxed execution environments
↳Integrate code execution into AI chat clients via MCP tools
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
onlyboxesTrendingAPI Integration
sembleCode AssistantRAG / Knowledge Base
FAQ
FAQ
What is the difference between onlyboxes and semble?
Both onlyboxes and semble are in the Dev Tooling category. onlyboxes has 24 stars, while semble has 4.5k stars.
Which is better, onlyboxes or semble?
The best choice depends on your use case. Choose onlyboxes if Safely execute untrusted code in isolated environments for development and testing, and semble if Enhancing AI agents (e.g., Claude Code, Cursor, Codex) with fast and accurate code search capabilities.
Is onlyboxes free or open source?
Yes, onlyboxes is open source on GitHub (AGPL-3.0).
Is semble free or open source?
Yes, semble is open source on GitHub (MIT).
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