# bts.freight.indicators

Access weekly and monthly supply chain performance indicators from BTS, including containerized import/export volumes at US ports, railroad terminal dwell times, truck speeds at bottleneck locations, freight rates (Shanghai–LA), vessel waiting times, carrier employment, and the Freight Transportation Services Index. Filter by indicator name (partial match), year, or date range. Source: BTS Supply Chain and Freight Indicators (Socrata y5ut-ibwt). No auth — US Gov public domain.

Agent View of the PolicyLayer registry record for `bts.freight.indicators`. HTML page: https://policylayer.com/tools/io-github-whiteknightonhorse-apibase/bts.freight.indicators

## Facts

- Tool: `bts.freight.indicators`
- Server: Apibase (`apibase-mcp-client`) — https://policylayer.com/tools/io-github-whiteknightonhorse-apibase.md
- Install: `npx -y apibase-mcp-client`
- Homepage: https://github.com/whiteknightonhorse/APIbase
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server auth posture: open
- Server rate-limited: no
- Parameters: 5
- Recommended policy verdict: Allowed

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `year` | integer | no | Filter by year (e.g. 2024). Data available from 2019. |
| `limit` | integer | no | Maximum number of indicator records to return (1–500, default 20). |
| `end_date` | string | no | End of date range in YYYY-MM-DD format (e.g. "2024-12-31"). |
| `indicator` | string | no | Partial name of the indicator to filter by (e.g. "Freight Transportation Services Index", "Containerized Imports", "Railroad", "Truck Speed"). Case-insensitive |
| `start_date` | string | no | Start of date range in YYYY-MM-DD format (e.g. "2024-01-01"). |

Parameters from the server's own tool schema.

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "bts.freight.indicators",
    "arguments": {}
  }
}
```

## Why bts.freight.indicators is rated Low

Tool retrieves freight metrics from public US government data; no modifications, deletions, or external operations performed.

From the tool's own definition: "Access weekly and monthly supply chain performance indicators, filter by indicator name, year, or date range."

## Use case

AI agents call bts.freight.indicators to retrieve information from Apibase without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Apibase:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "bts.freight.indicators": {}
  }
}
```

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## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=io-github-whiteknightonhorse-apibase · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/io-github-whiteknightonhorse-apibase