# eia_gasoline_prices

Weekly US retail gasoline prices from EIA. Filter by region (PADD1-PADD5 or national) and grade (regular, midgrade, premium, diesel, all). Useful for fuel-cost analysis, transportation logistics, and consumer price tracking.

Agent View of the PolicyLayer registry record for `eia_gasoline_prices`. HTML page: https://policylayer.com/tools/io-github-blackboxfoundry-livedatalink/eia-gasoline-prices

## Facts

- Tool: `eia_gasoline_prices`
- Server: Livedatalink (`https://livedatalink.ai/mcp`) — https://policylayer.com/tools/io-github-blackboxfoundry-livedatalink.md
- Homepage: https://github.com/blackboxfoundry/livedatalink
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server auth posture: open
- Server CORS policy: *
- Server rate-limited: no
- Parameters: 5
- Recommended policy verdict: Allowed

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `end` | string | no | Inclusive upper-bound period (ISO date or YYYY-MM). |
| `grade` | string | no | Fuel grade: 'all', 'regular', 'midgrade', 'premium', 'diesel'. Default 'all'. |
| `limit` | number | no | Maximum rows to return (default 50, max 5000). |
| `start` | string | no | Inclusive lower-bound period (ISO date or YYYY-MM depending on series cadence). |
| `region` | string | no | PADD region code or 'national'. Examples: 'national', 'PADD1', 'PADD3'. Default 'national'. |

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": "eia_gasoline_prices",
    "arguments": {}
  }
}
```

## Why eia_gasoline_prices is rated Low

This is a straightforward data query tool that fetches historical gasoline price information. It has no side effects, cannot modify state, and poses minimal risk if misused by an AI agent—at worst, an agent could request irrelevant price data or make poor decisions based on the retrieved data, but the tool itself performs only read operations.

From the tool's own definition: "Tool retrieves 'weekly US retail gasoline prices' with filtering options; no modification, deletion, or execution capabilities mentioned. Pure data retrieval from US Energy Information Administration."

## Use case

AI agents call eia_gasoline_prices to retrieve information from Livedatalink 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 Livedatalink:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "eia_gasoline_prices": {}
  }
}
```

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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`
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---

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