Use this to find which carriers on your own list changed on or after a date, and
Use this to find which carriers on your own list changed on or after a date, and what changed: authority, insurance, out-of-service and other tracked fields, each with old and new values. Metered: a base price plus a per-roster-entry price, both shown in get_catalog; billed whenever at least one roster entry resolves, even if nothing changed. As fresh as the last data refresh.
Answeringour last check, 2026-10-18
1 of 1checks answered this week
324 msmedian answer time
$0.06listed price per call
$0.06price 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/check_roster_changes
| Category | Market data |
|---|---|
| Provider host | fmcsa-mcp-843680657471.us-central1.run.app |
| Networks | eip155:137, eip155:8453, 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 |
|---|---|---|---|---|
| 2026-10-18 | valid payment request | 402 | $0.06 | 324 ms |
Example input (from the provider)
{
"body": {
"roster_usdot_numbers": [
2122247,
1234567
],
"since": "2026-09-01"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"roster_usdot_numbers": {
"description": "USDOT numbers of the carriers to watch: your own list, at most 100 per call.",
"items": {
"type": "integer"
},
"type": "array"
},
"since": {
"description": "ISO date, YYYY-MM-DD. Changes on or after this date are returned.",
"type": "string"
}
},
"required": [
"roster_usdot_numbers",
"since"
],
"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"
}