# Virga Weather (npm · @virga-mcp/server)

Weather API tools — current, hourly, daily forecasts, and historical data.

- Trust score: 65/100 (medium)
- Change this week: +18
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-04

## Components

- npm · `@virga-mcp/server`: 65/100 (this document), [markdown](https://verifymcp.io/servers/mcmurrym-virga-weather/virga-mcp-server.md), [page](https://verifymcp.io/servers/mcmurrym-virga-weather/virga-mcp-server)

## Channel facts

- Registry: `npm`
- Package: `@virga-mcp/server`
- Version: `0.1.2`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-08-04.

- **Supply Chain Security**: 83/100
  - No malware found by supply-chain analysis.
  - CVE check failed: a known medium-severity CVE affects hono 4.12.33, reached via @modelcontextprotocol/sdk > hono. A fixed version is available.
  - No install/post-install scripts declared.
  - Only part of the dependency tree could be resolved (95 of 99), so this covers what we could see, not the whole tree.
- **Provenance & Transparency**: 19/100
  - Repository check failed: the declared repository URL returned HTTP 404.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 154 days ago).
  - Security-disclosure policy not yet verified: we couldn't inspect the source repository.
- **Schema Quality & AI Usability**: 85/100
  - 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).
  - AI-judged instruction clarity (excellent).
  - Tool/resource definitions use about 964 tokens (~48/item across 20 items; 14 tools + 6 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 27/100
  - Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add mcmurrym-virga-weather -- npx -y @virga-mcp/server
```

### Codex

```bash
codex mcp add mcmurrym-virga-weather -- npx -y @virga-mcp/server
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "mcmurrym-virga-weather": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "@virga-mcp/server"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add mcmurrym-virga-weather --command npx --arg -y --arg @virga-mcp/server
```

### Hermes

```yaml
mcp_servers:
  mcmurrym-virga-weather:
    command: "npx"
    args: ["-y", "@virga-mcp/server"]
```

### Other

```json
{
  "mcpServers": {
    "mcmurrym-virga-weather": {
      "command": "npx",
      "args": [
        "-y",
        "@virga-mcp/server"
      ]
    }
  }
}
```

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-08-04 (score 65, 0)

- [security regression] CVE-2026-69207 affects this package: medium
- [security regression] Known CVEs: partial → fail

### 2026-08-03 (score 65, +3)

- [functional improvement] Stability: unverified → 0.23

### 2026-08-02 (score 62, +41)

- [security regression] Provenance: unverified → fail
- [security improvement] Install scripts: unverified → pass
- [security improvement] Known CVEs: unverified → partial
- [security improvement] Malware scan: unverified → pass
- [security] Stability: Stability not yet verified: not enough scan history yet (needs a 30-day window).
- [functional improvement] Schema quality: unverified → excellent
- [functional improvement] License: unverified → pass
- [functional improvement] Dependency health: unverified → partial
- [functional improvement] Maintenance: unverified → pass
- [functional improvement] MCP protocol: unverified → pass
- [functional] Licence: MIT

### 2026-07-31 (score 21, +3)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-30 (score 18, −29)

- [functional regression] Tool coverage: 100 → unverified
- [functional regression] Schema quality: 100 → unverified

### 2026-07-27 (score 47)

First indexed and scored.

## MCP tools (14)

### `get_current_weather` (~55 tokens)

Get current weather conditions for a location. Returns temperature, humidity, wind, precipitation, and conditions.

Input parameters:

- `lat` (number, required): Latitude (-90 to 90)
- `lon` (number, required): Longitude (-180 to 180)

### `get_hourly_forecast` (~75 tokens)

Get hourly weather forecast for a location. Returns up to 120 hours of forecast data.

Input parameters:

- `hours` (integer): Number of hours to forecast (1-120, default 24)
- `lat` (number, required): Latitude (-90 to 90)
- `lon` (number, required): Longitude (-180 to 180)

### `get_daily_forecast` (~74 tokens)

Get daily weather forecast for a location. Returns up to 16 days of forecast data.

Input parameters:

- `days` (integer): Number of days to forecast (1-16, default 7)
- `lat` (number, required): Latitude (-90 to 90)
- `lon` (number, required): Longitude (-180 to 180)

### `get_historical_weather` (~90 tokens)

Get historical weather data for a location on a specific date. Returns temperature, humidity, wind, and conditions for that date.

Input parameters:

- `date` (string, required): Date to retrieve weather for (ISO 8601 format, e.g. 2026-01-15)
- `lat` (number, required): Latitude (-90 to 90)
- `lon` (number, required): Longitude (-180 to 180)

### `search_location` (~71 tokens)

Geocode a place name to latitude/longitude coordinates. Use this to convert city names, addresses, or landmarks into coordinates for weather queries.

Input parameters:

- `query` (string, required): Place name, city, or address to geocode (e.g. "New York", "Tokyo, Japan", "1600 Pennsylvania Ave")

### `create_account` (~51 tokens)

Create a new Virga Weather API account. Returns a stage API key for testing. No authentication required.

Input parameters:

- `name` (string, required): Name for your account or agent (e.g. 'my-weather-bot')

### `accept_terms` (~49 tokens)

Accept the Virga Weather API terms of service. Required before creating production keys.

Input parameters:

- `version` (string, required): Terms version to accept (get the current version from get_terms or the weather://terms resource)

### `activate_billing` (~37 tokens)

Set up a payment method via Stripe. Returns a checkout URL that must be opened in a browser to complete setup. Required before purchasing credits.

### `purchase_credits` (~76 tokens)

Purchase a credit bundle. Returns a Stripe checkout URL to complete the purchase. Bundles: 500 credits ($5), 2000 ($18), 10000 ($75).

Input parameters:

- `bundle` (string, required): Credit bundle size: '500' ($5), '2000' ($18), or '10000' ($75)

### `get_billing_status` (~27 tokens)

Get current billing status including credit balance, spend caps, and auto-topup configuration.

### `list_api_keys` (~30 tokens)

List all API keys for the account. Shows key prefix, environment, status, and last used timestamp.

### `create_api_key` (~83 tokens)

Create a new API key. Production keys require accepted terms, activated billing, and positive credit balance.

Input parameters:

- `environment` (string): Key environment: 'stage' (free, lower limits) or 'production' (uses credits, higher limits). Default: stage.
- `name` (string, required): Descriptive name for the key (e.g. 'production-bot')

### `revoke_api_key` (~54 tokens)

Revoke an API key. WARNING: This is a destructive operation — the key will immediately stop working and cannot be restored.

Input parameters:

- `keyId` (string, required): ID of the key to revoke (get from list_api_keys)

### `get_usage` (~64 tokens)

Get API usage history for the account. Shows endpoint calls, credit costs, and timestamps.

Input parameters:

- `endDate` (string): End date for usage query (ISO 8601 format)
- `startDate` (string): Start date for usage query (ISO 8601 format)

## Diagnostics

Captured diagnostic sections: Provenance, Vulnerabilities, Dependencies. The full working is on the page: https://verifymcp.io/servers/mcmurrym-virga-weather/virga-mcp-server#diagnostics

## Score history

- 2026-08-04: 65
- 2026-08-03: 65
- 2026-08-02: 62
- 2026-08-01: 21
- 2026-07-31: 21
- 2026-07-30: 18
- 2026-07-28: 47
- 2026-07-27: 47

## Links

- npm package: https://www.npmjs.com/package/@virga-mcp/server
- Socket report: https://socket.dev/npm/package/@virga-mcp/server
- Website: https://virga.dev/
- Changelog RSS feed: https://verifymcp.io/servers/mcmurrym-virga-weather/virga-mcp-server/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/mcmurrym-virga-weather/virga-mcp-server/changelog.json
- HTML version of this page: https://verifymcp.io/servers/mcmurrym-virga-weather/virga-mcp-server