HarnessesFramework

smolagents

Small Python library for agents that act by writing and running code.

Maker
Hugging Face
Kind
framework
Interface
SDK
Open source
Open source · Licence: Apache-2.0 · GitHub
GitHub stars
29,894 (GitHub API, 2026-10-17)
Models
—
Pricing
—
MCP support
Yes
Subagents
Yes Multi-agent systems with managed agents.
Headless / scripted mode
—
Sandboxing
Yes Remote execution via E2B or Docker, among others.
Official site
https://huggingface.co/docs/smolagents
Sources
api.github.com/repos/huggingface/smolagents · huggingface.co/docs/smolagents/tutorials/tools · huggingface.co/docs/smolagents/examples/multiagents · huggingface.co/docs/smolagents/tutorials/secure_code_executi (docs checked 2026-10-17)
Other frameworks
Claude Agent SDK, OpenAI Agents SDK, Mastra, LangGraph

Every value comes from the official site or docs, or from the GitHub API, on the date shown. A blank (—) means the value isn't stated or wasn't verified. It never means 'no'. Pricing is copied from official pages and changes often. No affiliate links.