Every X3 Fleet Safety product runs on one engine: verbatim 49 CFR, a 67,000-document compliance knowledge base, 200+ grounded compliance agents, and live carrier safety data by USDOT. Now you can build on the same engine — no regulation team required.
Query the exact controlling text of 49 CFR (and growing state coverage). Every response ties back to the section it came from, refreshed as the eCFR changes. No hallucinated rules, no stale citations.
Call the same specialist agents that power X3 HazMat, CSA, HOS, DataQ, Drug & Alcohol and more — each grounded in the verified corpus and scoped to a real compliance job. Ask a question, get a cited, decision-support answer.
One call returns a carrier's authority, safety-rating factors, and inspection signals — perfect for TMS, insurers, brokers, and factoring platforms that need to vet carriers or embed compliance intelligence without building it themselves.
Request an API key and pick a plan. Free dev tier to start — no card.
Simple REST + JSON. Search the CFR, ask an agent, or pull a carrier by USDOT.
Embed cited compliance intelligence in your product. Meter by call; scale as you grow.
{
"question": "What are the HOS 14-hour rule limits?",
"domain": "hos"
}
→ 200 OK
{
"answer": "The 14-hour limit under §395.3(a)(2) ...",
"citations": ["49 CFR 395.3"],
"grounded": true
}
This is the same corpus search behind the API. Try "hours of service" or "drug testing pool".
Add cited HOS, DVIR, and compliance answers inside your dispatch product.
Pull carrier safety factors by USDOT to price and monitor risk.
Vet authority and catch fraud signals at onboarding, programmatically.
Score carrier reliability inside your credit and payment flows.
Build compliance apps on verified law without a regulation team.
Ground your own copilots and workflows in a source you can trust.
Pay for the calls you make — not per seat, not per truck.
Yes. X3 HazMat, CSA, HOS, DataQ and the rest all call this engine. X3 API opens it to your product.
Answers are tied to the verified, current CFR text and a curated 67k-document corpus, with citations. It's decision support — always verify against the controlling regulation.
Authority status, safety-rating factors, and inspection signals by USDOT number — the inputs behind X3's carrier vetting.
Email us for a free developer key and start calling the endpoints today.