Agentspan
Open-source runtime for durable AI agents
Agentspan launched on May 18, 2026 with 93 votes, #361 of 20,538 launches that month and more than 95% of that year's launches.
What it does
Agentspan is an open-source server and SDK for running AI agents as durable workflows. You can define agents programmatically, execute them server-side, and inspect each run and execution state in the UI. Agentspan adds crash recovery, human-in-the-loop approvals, guardrails, tool history, and observability around the agent frameworks and LLMs you already use. MIT licensed.
What an agent is in Conductor and how agent turns run as durable workflow tasks with tools, approvals, and a full execution history.
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