Trace audit — a dated evidence pack from your own logs · WCO.ai

Replay a real request log through the engine locally and get measured savings, prompt-cache verdicts, reversibility attestation, and p50/p95/max overhead. Cost figures are omitted rather than estimated when a trace spans models or a price is uncited.

The interactive playground and tools require JavaScript because they run the optimization engine locally in your browser rather than sending your data to a server.

WCO.ai — Use fewer tokens, keep the context
Compressor Arena — measured token savings by payload family
Twelve browser-local developer tools
Context audit — measure your own traffic in the browser
Documentation — hosted API, SDKs, and middleware
Pricing — plan limits, overage rates, and cost separation
Methodology — how WCO measures token savings
Evidence registry — every claim and its source
Trust and data handling
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