Record, replay, fork & share AI agent executions. See every LLM call, tool invocation, and error your agent makes, then debug and iterate in seconds. Free for 1,000 traces/mo.
Retrace records every LLM call, tool call, and error in a run as a span inside a trace. You can replay a past run step by step, like scrubbing through a video. When you find the step that broke, you fork it, change the input or model at that point and the agent re-executes from there, so you can compare the original and the new path side by side.
The part I care most about is the forking: it's closer to git branching than to re-running a prompt. Pre-fork steps replay from the recording; everything downstream runs live.
It's early, and I'd really like your feedback — especially on the replay and fork flow, and what would make it fit your stack. Which frameworks or providers are you using? Happy to answer anything here.
About Retrace on Product Hunt
“Debug AI agents by replaying and forking runs”
Retrace launched on Product Hunt on July 2nd, 2026 and earned 101 upvotes and 34 comments, placing #16 on the daily leaderboard. Record, replay, fork & share AI agent executions. See every LLM call, tool invocation, and error your agent makes, then debug and iterate in seconds. Free for 1,000 traces/mo.
On the analytics side, Retrace competes within Productivity, Developer Tools, Artificial Intelligence and GitHub — topics that collectively have 1.7M followers on Product Hunt. The dashboard above tracks how Retrace performed against the three products that launched closest to it on the same day.
Who hunted Retrace?
Retrace was hunted by Yashwanth. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Yashwanth