HarnessesFramework

OpenAI Agents SDK

Lightweight framework for multi-agent workflows with handoffs, guardrails and tracing.

Maker
OpenAI
Kind
framework
Interface
SDK
Open source
Open source · Licence: MIT · GitHub
GitHub stars
30,100 (GitHub API, 2026-10-17)
Models
—
Pricing
—
MCP support
Yes
Subagents
Yes Multi-agent via handoffs.
Headless / scripted mode
—
Sandboxing
Yes
Note
Stars are for the Python repo; JS repo has 3,923.
Official site
https://openai.github.io/openai-agents-python/
Sources
api.github.com/repos/openai/openai-agents-python · api.github.com/repos/openai/openai-agents-js · openai.github.io/openai-agents-python/mcp/ · openai.github.io/openai-agents-python/handoffs/ · openai.github.io/openai-agents-python/sandbox_agents/ (docs checked 2026-10-17)
Other frameworks
Claude Agent SDK, smolagents, 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.