Alternatives to OpenAI Agents API built with AI
As of October 28, 2026, vibetrend lists 1 app whose makers describe it as an alternative to OpenAI Agents API, all built with AI coding tools. The most popular right now is OpenMA (342 GitHub stars).
All OpenAI Agents API alternatives
- 1▲23
Open-source agent platform compatible with Claude and OpenAI APIs
★ 342Apr 10, 20260
Frequently asked questions
What are the best alternatives to OpenAI Agents API?
Ranked by momentum on vibetrend, the top 1 are 1. OpenMA (Open-source agent platform compatible with Claude and OpenAI APIs).
Is there a free or open-source alternative to OpenAI Agents API?
Yes. 1 of the 1 listed OpenAI Agents API alternatives have a public GitHub repo, led by OpenMA (342 stars).
How are these OpenAI Agents API alternatives chosen?
An app appears here only when its own site, README or launch post explicitly calls it an alternative to OpenAI Agents API. Every one was built with AI coding tools such as Claude Code, Cursor or Lovable, and the order is by 30-day momentum and GitHub stars.