The strongest open-source alternatives to Temporal for building AI agents — agent runtimes ranked by GitHub traction, each with a head-to-head.
Temporal (★ 21k) is Durable execution platform — write long-running, failure-resilient agent workflows as ordinary code. If it is not the right fit, these 1 agent runtimes cover the same ground — E2B is the most-starred option below. Or browse the best agent runtimes and Temporal's own page.
Secure cloud sandboxes for running AI-generated code — the runtime layer for code-executing agents. Best for code execution.
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