# Agent framework AI agents in 2026: Vibe Shipped directory

> Coding agents, autonomous engineers, browser and workflow agents, and agent frameworks, with sourced facts.

5 entries. Last verification run: 2026-10-27.

## AI agents / Agent framework

- [Claude Agent SDK](https://vibeshipped.io/directory/agents/claude-agent-sdk) (Sourced facts checked 2026-10-17): SDK that exposes Claude Code's agent loop and tools for building your own agents.
- [Mastra](https://vibeshipped.io/directory/agents/mastra) (Sourced facts checked 2026-10-17): TypeScript framework for agents, workflows, memory and evals, with a hosted platform.
- [OpenAI Agents SDK](https://vibeshipped.io/directory/agents/openai-agents-sdk) (Sourced facts checked 2026-10-17): Lightweight framework for multi-agent workflows with handoffs, guardrails and tracing.
- [smolagents](https://vibeshipped.io/directory/agents/smolagents) (Sourced facts checked 2026-10-17): Small Python library for agents that act by writing and running code.
- [LangGraph](https://vibeshipped.io/directory/agents/langgraph) (Sourced facts checked 2026-10-17): Low-level framework for stateful, graph-based agent orchestration.

Ranking rule: Within a category, entries sort by (1) latest verification: verified working, then reachable but sign-in required, then failing; (2) share of daily checks that passed; (3) number of sourced facts attached to the entry; (4) median response time of passing checks; (5) name. Nothing else counts. Rankings are never for sale: sponsors and paid plans cannot change an entry's position.