# currentuvindex.weather.uv_index

Get the current UV Index, an hourly forecast for the next ~120 hours, and up to 24 hours of recent history for any latitude/longitude worldwide. Each data point includes a WHO/EPA risk category (Low, Moderate, High, Very High, Extreme). Also returns the peak forecasted UV Index and when it occurs. Data: currentuvindex.com, CC BY 4.0 license, no auth required.

Agent View of the PolicyLayer registry record for `currentuvindex.weather.uv_index`. HTML page: https://policylayer.com/tools/io-github-whiteknightonhorse-apibase/currentuvindex.weather.uv-index

## Facts

- Tool: `currentuvindex.weather.uv_index`
- 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: 2 (2 required)
- Recommended policy verdict: Allowed

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `latitude` | number | yes | Latitude of the location, decimal degrees (-90 to 90). Example: 40.6943. |
| `longitude` | number | yes | Longitude of the location, decimal degrees (-180 to 180). Example: -73.9249. |

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": "currentuvindex.weather.uv_index",
    "arguments": {
      "latitude": 0,
      "longitude": 0
    }
  }
}
```

## Why currentuvindex.weather.uv_index is rated Low

Retrieves weather data with no side effects or ability to modify state.

From the tool's own definition: "Get current UV Index, hourly forecast, recent history for latitude/longitude worldwide."

## Use case

AI agents call currentuvindex.weather.uv_index 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": {
    "currentuvindex.weather.uv_index": {}
  }
}
```

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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