The Agent ExaminerIndependent Review Authority

Best agent SDKs

Vendor SDKs for wiring tool-calling agents against model providers, ranked by our developer-experience score.

How this ranking is built

Included when category is “sdk”. Ranked by the editorial developer-experience dimension, then overall score.

The editorial score is our opinion, applied by one rubric to every platform including Alfe. See the methodology.

  1. 1

    Claude Agent SDK

    SDK

    Developer experience 5/5 · Editorial score 4.2/5

    4.2/5
  2. 2

    Vercel AI SDK

    SDK

    Developer experience 5/5 · Editorial score 3.8/5

    3.8/5
  3. 3

    OpenAI Agents SDK

    SDK

    Developer experience 4/5 · Editorial score 3.8/5

    3.8/5

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