OpenGauge

Local-first LLM cost tracking and observability. Per-call cost logging, runaway loop detection, circuit breaker, and budget enforcement — all stored in SQLite on your machine.

Quick Start

npx opengauge

What it does

• Per-call cost tracking — every LLM API call logged with token counts, cost estimates, and latency
• Runaway loop detection — trigram similarity catches agents stuck repeating the same call
• Circuit breaker — alerts (or blocks) when loops or budget thresholds are breached
• Budget enforcement — session, daily, and monthly spend limits
• Multi-provider — Anthropic, OpenAI, Google Gemini, Ollama (local)

Three ways to use it

1. Proxy mode — track any LLM tool

Point any tool (Claude Code, Cursor, custom apps) at the proxy to track all API calls:

npx opengauge watch

Then configure your tool to use the proxy:

ANTHROPIC_BASE_URL=http://localhost:4000 claude
OPENAI_BASE_URL=http://localhost:4000/v1 your-tool

2. OpenClaw plugin — track OpenClaw agents

openclaw plugins install @opengauge/openclaw-plugin
openclaw gateway restart

Every LLM call your agent makes is automatically tracked. No code changes needed.

3. Chat UI — built-in chat interface

npx opengauge

Opens a local web chat at http://localhost:3000 with token optimization, context retrieval, and cost tracking built in.

View stats

npx opengauge stats                              # all time, all sources
npx opengauge stats --source=proxy               # proxy mode only
npx opengauge stats --source=openclaw            # openclaw plugin only
npx opengauge stats --period=7d                  # last 7 days
npx opengauge stats --model=claude-sonnet-4-6    # specific model
npx opengauge stats --json                       # machine-readable output

Example output:

  Total Spend
┌──────────────┬─────────┐
│ Total Spend  │ $0.0408 │
│ Tokens In    │ 25.4K   │
│ Tokens Out   │ 203     │
│ Sessions     │ 7       │
│ API Calls    │ 7       │
└──────────────┴─────────┘

Configuration

Create ~/.opengauge/config.yml:

providers:
  anthropic:
    api_key: YOUR_API_KEY
    default_model: claude-sonnet-4-6
  openai:
    api_key: YOUR_API_KEY
    default_model: gpt-4o
  ollama:
    base_url: http://localhost:11434
    default_model: llama3

defaults:
  provider: anthropic

# OpenClaw plugin settings (optional)
openclaw:
  circuit_breaker:
    enabled: true
    similarity_threshold: 0.8
    max_similar_calls: 5
    action: warn            # warn | block
  budget:
    session_limit_usd: 5.00
    daily_limit_usd: 20.00
    monthly_limit_usd: 400.00

Supported models

Data storage

Everything local at ~/.opengauge/:

config.yml       — configuration
opengauge.db     — SQLite database (sessions, interactions, alerts)
error.log        — error log for debugging

Packages

Developer setup

git clone https://github.com/applytorque/opengauge.git
cd opengauge
npm install
npm run build
npm start

Docs

See docs/GUIDE.md for the full setup and usage guide.

License

MIT