DirectoryAI agents

Agent framework: ai agents in 2026

5 entries, ranked by their latest verification, share of daily checks passed, sourced facts and response time. Never by payment.

1. Claude Agent SDK Sourced facts checked 2026-10-17 · #1 in Agent framework
   SDK that exposes Claude Code's agent loop and tools for building your own agents.
2. Mastra Sourced facts checked 2026-10-17 · #2 in Agent framework
   TypeScript framework for agents, workflows, memory and evals, with a hosted platform.
3. OpenAI Agents SDK Sourced facts checked 2026-10-17 · #3 in Agent framework
   Lightweight framework for multi-agent workflows with handoffs, guardrails and tracing.
4. smolagents Sourced facts checked 2026-10-17 · #4 in Agent framework
   Small Python library for agents that act by writing and running code.
5. LangGraph Sourced facts checked 2026-10-17 · #5 in Agent framework
   Low-level framework for stateful, graph-based agent orchestration.

Ranking rule and methodology · Markdown