Send a normalized driver log; get back every 49 CFR Part 395 finding — form-and-manner, 11/14/30-min/70-hr, unassigned driving, PC misuse — each tied to a verified eCFR cite, plus an audit-readiness score. Built for TMS, ELD, and safety platforms. The same key also powers DataQ violation scoring.
POST https://x3hos.com/api/v1/hos-score
x-api-key: x3q_live_••••••••
Content-Type: application/json
{ "drivers": [ { "name": "J. Reyes",
"events": [ {"ts":"2026-06-23T05:30:00Z","status":"D"},
{"ts":"2026-06-23T20:30:00Z","status":"OFF"} ] } ] }
{ "ok": true,
"summary": { "findings": 2, "high": 1,
"audit_readiness_score": 84 },
"drivers": [ { "driver": "J. Reyes",
"findings": [ { "rule": "Exceeded 11-hour drive limit",
"cfr": "49 CFR 395.3(a)(3)(i)",
"cfr_title": "Maximum driving time...",
"cfr_verified": true, "severity": "high" } ] } ] }
One X3 Compliance API key — works for HOS log auditing and DataQ violation scoring. Billed monthly by volume.
Tell us what you're building and your expected volume — or just grab a plan above.