Use this when you don't have a USDOT number yet and need to filter carriers by s
Use this when you don't have a USDOT number yet and need to filter carriers by state, safety tier, authority status, or cargo type — for example, every carrier with an unsatisfactory rating in a given state. Capped at 100 rows per call, Active carriers only by default. Billed only when at least one carrier matches; a zero-row result is free.
Answeringour last check, 2026-10-10
1 of 1checks answered this week
318 msmedian answer time
n/alisted price per call
n/aprice it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://fmcsa-mcp-843680657471.us-central1.run.app/x402/search_carriers
| Category | Everything else |
|---|---|
| Provider host | fmcsa-mcp-843680657471.us-central1.run.app |
| Networks | solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-10 | valid payment request | 402 | 318 ms |
Example input (from the provider)
{
"body": {
"limit": 20,
"safety_tier": 1,
"state": "TX"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"authority_status": {
"description": "e.g. 'Active', 'Inactive', 'Pending'.",
"type": [
"string",
"null"
]
},
"cargo_type": {
"description": "Matches carriers whose cargo_types array contains this value (e.g. 'General Freight').",
"type": [
"string",
"null"
]
},
"include_inactive": {
"description": "Include Inactive/Pending carriers alongside Active. Defaults to false.",
"type": "boolean"
},
"limit": {
"description": "Maximum rows to return; the response is capped at 100 regardless. Defaults to 20.",
"type": "integer"
},
"safety_tier": {
"description": "This project's own alert-count tier: 1 means zero BASIC alerts, higher means more alerted BASICs.",
"type": [
"integer",
"null"
]
},
"state": {
"description": "Two-letter US state code (e.g. 'TX').",
"type": [
"string",
"null"
]
}
},
"required": [],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}