01
Token clarity
Separate uncached input, cache reads, cache writes, output, and reasoning without double counting.
PRIVATE BY CONSTRUCTION
Your AI usage,
kept in your ledger.
A local-first macOS app that turns Codex and Claude Code usage logs into clear token, model, cache, session, and API list-price trends.
macOS 14+ · Apple Silicon & Intel · MIT licensed
THIS MONTH12.8Mtotal tokens
API EQUIVALENT$18.42list-price estimate
9.7MInput
2.4MCache read
3.1MOutput
84Sessions
Illustrative data
Zeronetwork uploads
Field allowlistno prompt or code storage
HMAC-SHA256private local identifiers
SQLiteincremental local index
ONE QUIET PLACE
Useful numbers.
None of the surveillance.
02
Model & cost trends
Compare models over day, week, month, or all time with clearly labeled API list-price estimates.
03
Native macOS experience
A warm SwiftUI dashboard, menu bar glance view, launch-at-login option, and universal binary.
04
Resilient indexing
Resume from byte offsets, preserve partial lines, and rebuild only the log that was replaced or truncated.
05
Honest source status
Tools without a verifiable local token schema show “unsupported” instead of a misleading zero.
06
Extensible inbox
Import a small documented JSONL usage schema for other local agents without granting app access.
PRIVACY BOUNDARY
It counts usage.
It does not watch you.
Agent Ledger reads
- Event timestamps
- Agent and raw model names
- Structured token counters
- Hashed file and session identity
Agent Ledger skips
- Prompts and responses
- Code and tool payloads
- Project paths and Git metadata
- Credentials and settings files
LOCAL PIPELINE
Read-only logs in.
Small aggregates out.
1DiscoverSupported local JSONL logs
→
2AllowlistOnly model, time, usage
→
3NormalizeDelta and stream dedupe
→
4ProtectMachine-local HMAC IDs
→
5SummarizePrivate SQLite + SwiftUI
OPEN SOURCE