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ACE Sidecar
Free local observability for Claude Code & Antigravity
Local developer observability sidecar, transcript mining, and workflow skill miner for Claude Code and Antigravity. Runs 100% on your machine — track token spend, cache hits, and idle/active time with zero cloud overhead. Mines your transcripts to auto-detect repeat workflows and turns them into reusable skills. Free and open source. Built by the team behind ACE Fleet, the hosted engine for cutting production AI API costs.
Hey Product Hunt 👋
We built ACE Sidecar because we kept flying blind on our own Claude Code and Antigravity usage — no idea what our sessions actually cost, how often we were hitting cache, or which workflows we kept repeating by hand.
Sidecar runs 100% locally (127.0.0.1:8787) — it watches your coding agent traffic, gives you real-time cost/token observability, and mines your transcripts to auto-detect repeated multi-step workflows so you can turn them into reusable skills. No cloud, no telemetry leaving your machine, fully open source (AGPL-3.0).
It's actually a spinoff of a bigger problem we're solving at ACE Fleet — cutting AI API costs in production with caching, routing, and compression. Sidecar was born from wanting that same visibility on the local dev side, and we figured other builders would want it too, so we open-sourced it standalone.
Would love feedback — especially from anyone running heavy multi-agent workflows. What would make this more useful for your setup?
About ACE Sidecar on Product Hunt
“Free local observability for Claude Code & Antigravity”
ACE Sidecar was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #51 on the daily leaderboard. Local developer observability sidecar, transcript mining, and workflow skill miner for Claude Code and Antigravity. Runs 100% on your machine — track token spend, cache hits, and idle/active time with zero cloud overhead. Mines your transcripts to auto-detect repeat workflows and turns them into reusable skills. Free and open source. Built by the team behind ACE Fleet, the hosted engine for cutting production AI API costs.
On the analytics side, ACE Sidecar competes within Open Source, Developer Tools, Artificial Intelligence and GitHub — topics that collectively have 1.1M followers on Product Hunt. The dashboard above tracks how ACE Sidecar performed against the three products that launched closest to it on the same day.
Who hunted ACE Sidecar?
ACE Sidecar was hunted by ACE Team. 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.
For a complete overview of ACE Sidecar including community comment highlights and product details, visit the product overview.
ACE Team