Technical guide
First HVAC diagnostic API pilot — modest, verifiable results
We document a conservative pilot shape: ten high-volume codes, Developer key, weekly review of sourced vs abstain ratio — not a marketing case study with invented ROI.
Updated 30 August 2026
Setup
Export tier-1 codes from your ticket system, map brand/model fields, call v1 lookup or v2 diagnostic with strict source_policy.
Metrics that matter
Sourced answer rate, abstention rate, average time-to-first-citation, escalations avoided — not raw token spend.
Next step
Book a pilot via /contact?type=commercial — Marcel Inside for change management, API for your own UX.