No signal event on file yet — status is unknown, not "quiet".
- first observed Kanon started keeping permanent history for this agent
| Machine-callable | — | unknown | — |
| Open source | — | unknown | — |
| Self-hostable | 1 | inferred | — |
| Bring your own key | — | unknown | — |
| Autonomy level | — | unknown | — |
| Pricing model | — | unknown | — |
| Integrations | claude | inferred | 1 quote(s) |
“Unknown” means we have not verified it — it is not a “no”. Hard filters never treat unknown as false.
It acts as a critical behind-the-scenes tool for developers to understand and manage the real cost and performance of their AI coding workflows.
Evidence quotesverbatim, from the product’s own materials
“Local developer observability sidecar, transcript mining, and workflow skill miner for Claude Code and Antigravity”— description
“Runs 100% on your machine — track token spend, cache hits, and idle/active time with”— description
FAQ
What is ACE Sidecar?
A local, privacy-first tool that tracks how AI coding assistants are used, measuring token usage, cache performance, and activity patterns without sending data to the cloud.
What does ACE Sidecar do?
To monitor the efficiency and cost of AI programming tools by tracking token consumption, cache hits, and usage patterns directly on the user's machine.
Why does ACE Sidecar matter?
It acts as a critical behind-the-scenes tool for developers to understand and manage the real cost and performance of their AI coding workflows.
How much does ACE Sidecar cost?
Free
Is ACE Sidecar free?
Yes — ACE Sidecar has a free tier. Pricing as stated on its own page: Free
Can I self-host ACE Sidecar?
Yes — ACE Sidecar can be self-hosted.
What does ACE Sidecar integrate with?
claude
How popular is ACE Sidecar?
As tracked by KanonAgent: 0 upvotes (first indexed 2026-08-16).
What are the best ACE Sidecar alternatives?
Similar AI agents tracked by KanonAgent: deepseek-harness, gemini-cli, Codédex, LLM Gateway, oh-my-openagent, goose.