Koskamo

CarrierTrail MCP

A remote MCP server that allows AI assistants to search US motor carrier, broker, and freight forwarder records from public FMCSA data. It provides tools to look up USDOT/MC numbers, check authority and insurance status, view safety summaries, and monitor recent changes to carrier census fields.

Visit CarrierTrail

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

CarrierTrail MCP logo, by CarrierTrailVendor evidenceStreamable HTTPNo sign-inEndpoint checked 2026-11-01Operated by CarrierTrail
You need:The free lookup allows 20 lookups a day without an accountStarter and Team subscribers can connect with their CarrierTrail account
MCP endpoint (Streamable HTTP)
https://carriertrail.com/mcp/v1
Vendor documentation

What you can do with it

  • Look up a carrier's operating authority status by USDOT number
  • Find companies in a specific state with a keyword in their name
  • Check recent changes to a carrier's fleet size or name
  • Compare out-of-service rates between multiple carriers

Source and maintenance

Vendor evidenceRegistry 1.0.0
mcp-registry: com.carriertrail/mcp@1.0.0Project website

Protocol and capabilities

Server
carriertrail 1.0.0
MCP protocol
2025-06-18
Tools
3 advertised
Resources
Not advertised
Resource templates
Not advertised
Prompts
Not advertised
Server-advertised capabilities
{
  "tools": {
    "listChanged": false
  }
}

Server-provided instructions

Untrusted server output shown for inspection. It is not Koskamo guidance and is excluded from knowledge search.

Look up US motor carriers, brokers and freight forwarders in public FMCSA data: search_carriers by name, get_carrier by USDOT/MC number, get_recent_changes for census changes. Every answer includes a CarrierTrail link. Free use is limited per day.

Tools

3 advertised

search_carriers — Search carriers by name
Advertised by the server during the last successful anonymous check.
Advertised read-only

Find US motor carriers, brokers and freight forwarders by company name in FMCSA census data. Returns up to 10 matches with USDOT number, location and status.

search_carriers input schema
{
  "type": "object",
  "required": [
    "name"
  ],
  "properties": {
    "name": {
      "type": "string",
      "maxLength": 80,
      "minLength": 3,
      "description": "Company name or part of it. Each word needs at least 3 letters."
    },
    "limit": {
      "type": "integer",
      "default": 10,
      "maximum": 10,
      "minimum": 1
    },
    "state": {
      "type": "string",
      "pattern": "^[A-Za-z]{2}$",
      "description": "Optional two-letter US state, e.g. TX."
    }
  },
  "additionalProperties": false
}
search_carriers annotations
{
  "title": "Search carriers by name",
  "readOnlyHint": true,
  "openWorldHint": false
}
get_carrier — Look up a carrier
Advertised by the server during the last successful anonymous check.
Advertised read-only

Company record for one carrier by USDOT, MC, FF or MX number: census registration, operating authority, current insurance filings and 24-month roadside safety summary, with a CarrierTrail link.

get_carrier input schema
{
  "type": "object",
  "required": [
    "number"
  ],
  "properties": {
    "kind": {
      "enum": [
        "DOT",
        "MC",
        "FF",
        "MX"
      ],
      "type": "string",
      "description": "Number type when the number has no prefix. Default DOT."
    },
    "number": {
      "type": "string",
      "maxLength": 30,
      "description": "USDOT or docket number, e.g. \"2233441\", \"MC-123456\", \"USDOT 2233441\"."
    },
    "sections": {
      "type": "array",
      "items": {
        "enum": [
          "company",
          "authority",
          "insurance",
          "safety"
        ],
        "type": "string"
      },
      "description": "Optional subset. Default all."
    }
  },
  "additionalProperties": false
}
get_carrier annotations
{
  "title": "Look up a carrier",
  "readOnlyHint": true,
  "openWorldHint": false
}
get_recent_changes — Recent public changes
Advertised by the server during the last successful anonymous check.
Advertised read-only

Changes to one carrier's public FMCSA census fields seen in the last 90 days (name, status, fleet size, MCS-150 date, dockets and more).

get_recent_changes input schema
{
  "type": "object",
  "required": [
    "dot"
  ],
  "properties": {
    "dot": {
      "type": "string",
      "maxLength": 12,
      "description": "USDOT number."
    },
    "days": {
      "type": "integer",
      "default": 90,
      "maximum": 90,
      "minimum": 1
    }
  },
  "additionalProperties": false
}
get_recent_changes annotations
{
  "title": "Recent public changes",
  "readOnlyHint": true,
  "openWorldHint": false
}

Prompts

Not advertised

No prompt definitions available.

Resources

Not advertised

No resource definitions available.

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks
1 of 1 (100%)
Average latency
729 ms
95th percentile latency
729 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · probe · passed · 729 ms · metadata changed · 3 tool(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http carriertrail-mcp https://carriertrail.com/mcp/v1

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add carriertrail-mcp --url https://carriertrail.com/mcp/v1

Cursor

Merge this server into .cursor/mcp.json in your project, then enable carriertrail-mcp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "carriertrail-mcp": {
      "url": "https://carriertrail.com/mcp/v1"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).
Cline configuration
{
  "mcpServers": {
    "carriertrail-mcp": {
      "type": "streamableHttp",
      "url": "https://carriertrail.com/mcp/v1",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start carriertrail-mcp and inspect its tools.
VS Code configuration
{
  "servers": {
    "carriertrail-mcp": {
      "type": "http",
      "url": "https://carriertrail.com/mcp/v1"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http carriertrail-mcp https://carriertrail.com/mcp/v1

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.
Claude Desktop configuration
{
  "mcpServers": {
    "carriertrail-mcp": {
      "url": "https://carriertrail.com/mcp/v1"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "carriertrail-mcp": {
      "serverUrl": "https://carriertrail.com/mcp/v1"
    }
  }
}

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