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check_carrier_identity
x402
check_carrier_identity is a paid API for AI agents from fmcsa-mcp-843680657471.us-central1.run.app, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-14).
Investigates a USDOT number by surfacing all other USDOT numbers sharing contact identifiers with it and flagging any revocation or suspension history across those linked carriers.
Price / call$0.05
Success—
StatusUnknown
How this service works
Use this when a carrier looks suspicious — a name change, a new USDOT number tied to an old fleet, a business you suspect re-registered after a revocation — and you need the full evidence: every other USDOT number sharing a contact identifier with it, and whether any of them carries a revocation or suspension motive. Call the free screen_carrier_identity first if you only need the flag and a count. Billed whenever the USDOT number resolves, even with no links found.
Output
Returns a list of all other USDOT numbers that share a contact identifier (such as phone, email, address, or EIN) with the queried carrier, along with an indicator of whether any linked carriers have a revocation or suspension record. Billed at $0.05 USDC per call whenever the USDOT number successfully resolves, even if no links are found.
Example use cases
Detecting chameleon carrier re-registration
“This trucking company just showed up with a brand new USDOT number but the address and phone look familiar — run a full identity check on USDOT 2984561 and tell me if it's connected to any previously revoked carriers.”
Freight broker carrier vetting
“Before I add this carrier to our approved list, I need a deep identity check on USDOT 1734209 — specifically whether it shares contact details with any carriers that have been suspended or had their authority revoked.”
Insurance underwriting due diligence
“We're about to write a policy for a carrier with USDOT 4123876 but their history looks thin — do a full identity investigation and show me all linked USDOT numbers and whether any of them have revocation or suspension red flags.”
Technical details
Endpoint
POSThttps://fmcsa-mcp-843680657471.us-central1.run.app/x402/check_carrier_identity?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need full forensic detail about a carrier's identity network — specifically the complete list of linked USDOT numbers and their revocation/suspension status. Prefer this over the free screen_carrier_identity endpoint when a suspicious signal has already been detected and you need evidence for a compliance decision, fraud investigation, or onboarding review. Not needed when you only want a quick flag and count — use screen_carrier_identity in that case to avoid the $0.05 charge.
Side effects
- USDOT number does not exist or cannot be resolved — billed regardless of link count
- Invalid or non-integer USDOT number input returns a validation error
- Network timeout on the FMCSA data source causing incomplete results
- Carrier exists but has no resolvable contact identifiers — returns empty link set but still billed
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| usdot_number | integer | The carrier's USDOT number to check for shared identifiers with other carriers. |
Tags
x402
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