# io.github.guzz-labs/epwforge-mcp

> EPW/DDY weather files - TMY/AMY/CMIP6 morphing, UHI, events, smoke. 3 of 4 tools anon-free.

- name: io.github.guzz-labs/epwforge-mcp
- version: 0.3.1
- connection class: R0 (autonomous)
- trust: 90/100
- quality: 80/100 (good)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/io.github.guzz-labs%2Fepwforge-mcp
- tools: https://api.protogrid.dev/v1/servers/io.github.guzz-labs%2Fepwforge-mcp/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "epwforge-mcp": {
      "type": "http",
      "url": "https://epwforge.com/api/mcp",
      "headers": {
        "Authorization": "Bearer ${api_key}"
      }
    }
  }
}
```

Placeholders to fill: `${api_key}`.

## Trust

- hygiene: 100
- liveness: 100
- freshness: 65
- provenance: 90
- drivers: +repository +namespace-matches-repo +website +reachable +uptime-100% ~updated-156d-ago
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 80/100 (good)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-06-18; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 64 (weight 30)

- pass `tools.descriptions`: every tool has a description
- warn `tools.description_length`: 2 tools have descriptions over 1,024 characters, which crowds the context
- pass `tools.schemas`: every tool has an object input schema
- fail `tools.annotations`: no tool declares readOnlyHint or destructiveHint, so clients cannot tell safe calls from risky ones
- fail `tools.directory_hints`: no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: find_station (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); analyze_weather (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); chart_weather (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); …
- pass `tools.token_cost`: about 5,278 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 100 (weight 15)

- pass `stability.changes`: no tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name

### dependencies: 100 (weight 15)

- pass `deps.known_vulns`: no known advisory in 35 resolved packages
- pass `deps.mcp_sdk_version`: mcp 2.2.0, no known advisory
- pass `deps.resolvable`: epwforge-mcp@0.3.1 resolved: 35 packages

- tools: 6, about 5,278 tokens to load them all
- tool set hash: bdf8ebf756b58816c90257137dab8be4
- badge: [![protogrid quality](https://protogrid.dev/badge/io.github.guzz-labs/epwforge-mcp.svg)](https://protogrid.dev/servers/io.github.guzz-labs/epwforge-mcp)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

_No tool definition changes recorded._

## Dependencies

- pypi epwforge-mcp@0.3.1: resolved, 34 dependencies, MCP SDK mcp 2.2.0

Dependency graphs from deps.dev; advisories from OSV.dev, including the GitHub Advisory Database and the PyPI Advisory Database; all CC BY 4.0.

## Remotes

- https://epwforge.com/api/mcp (streamable-http, auth none, reachable true, uptime30d 1)

## Packages

- pypi epwforge-mcp@0.3.1 secrets: EPWFORGE_API_KEY

## Tools (6)

- `analyze_weather`: Compute design conditions, HDD/CDD, monthly stats, and peak heating/cooling days for one or more EPW files. Accepts a `url` (existing EPW), `urls` (compare 2+), or `config` (synthesize on the fly with morphing/UHI/events/smoke). Config mode runs the full generation pipeline server-side but returns only stats — never the EPW content. **Token-saver: pass `compact: true` to get a ~10-field headline response (~100 tokens) instead of the full ~800-token payload.** Use compact for sanity-checking, dashboards, or when chaining many calls; full when you need monthly arrays / peak days / full ASHRAE. Optional `include_full_ashrae` adds ASHRAE 0.4/1/2% cooling + 99.6/99% heating design conditions with mean coincident dewpoint. Optional `include_improbability` (config mode) adds a stress-test score. Optional `include_idf` adds ready-to-paste EnergyPlus SizingPeriod:DesignDay objects. Optional `units` ('imperial' default | 'metric'). **Presentation: when calling with `urls` (multiple files), the response includes a `comparisons` array — render it as a markdown table to the user. Lead with the headline delta, not the raw data.** No auth required; no credits charged.
- `chart_weather`: Render an SVG chart from EPW data. Eight chart types: `diurnal` (~10 KB, monthly hourly profile), `temp_carpet` (heatmap of hour × day-of-year — ~30 KB preview / ~150 KB full), `wind_rose` (~12 KB, polar bars by direction × speed), `monthly_boxplot` (~6 KB, Q1/median/Q3 + whiskers per month), `utci_carpet` (~90 KB, outdoor heat-stress hour × day, colored by UTCI category — Bröde 2012, shaded Tmrt), `economizer_carpet` (~90 KB, air-side economizer free / integrated / locked-out hour × day under ASHRAE 90.1 high-limit), `pv_tilt_azimuth` (~60 KB, annual PV generation across full tilt × azimuth space, isotropic-sky POA at lat from EPW header — optimum orientation marked), `solar_under_events` (~12 KB, weekly GHI of the modified scenario vs the no-overlay reference; bands color event-affected weeks. Requires `config` — server runs the pipeline twice, with and without overlays), `comparison` (~10 KB, design-condition deltas across EPWs). Accepts `url` (single), `urls` (2+ for comparison), or `config` (synthesize on the fly). Config mode is anon-safe — runs pipeline, returns SVG only. No auth required. **Token budget**: SVGs are returned inline by default. Large outputs (>50 KB) auto-upload to Blob storage (when configured) and return a URL instead, keeping your context lean. Always check `svg_size_kb` in the response. **Presentation: when handing the chart to the user, just link or embed it — don't narrate what's in it. Let the chart speak.**
- `explore_design_conditions`: Interactive single-site design-conditions explorer. Returns full ASHRAE design conditions + diurnal chart for the requested scenario. In MCP Apps-capable hosts (Claude Desktop, ChatGPT, VS Code, Goose), the response renders as a widget with sliders for SSP / year / percentile / UHI — dragging a slider re-calls this tool live. Use when a user wants to interactively tune a single site. For multi-site comparison, use analyze_weather(urls=[...]) instead. Defaults to present-day TMY (no morph) — pass ssp+year for future scenarios. P75 default percentile is design-realistic; P50 underestimates the tail. No auth required.
- `find_station`: Search the GuzzStations catalog (17,000+ weather stations worldwide, self-hosted mirror of OneBuilding TMYx). Returns matching stations with EPW URLs ready to pass to analyze_weather or chart_weather. Optionally enriches with AMY extreme years (hottest / coldest / most-humid on record) and CMIP6 climate deltas. No auth required.
- `generate_weather_file`: Generate and deliver an EPW or DDY file. A paid tool — charges credits per call: 1 for a single file, 1 per scenario for a scenarios batch (max 10), 10 for a per-model CMIP6 ensemble. Requires auth (Bearer API key or OAuth). Credits come from a Forge pass ($9.99/wk = 2 non-expiring credits, or $99/yr) or a top-up pack; see the epwforge://catalog/pricing resource. No account? Buy a fixed-price guest bundle — see preview_forge_bundle. For free analysis without credits, use analyze_weather or chart_weather on a real published EPW URL.
- `preview_forge_bundle`: Preview a fixed-price Forge bundle for a location — the no-account way to buy weather files. Returns the exact scenario breakdown, file count, price, and a purchase link the user opens for guest checkout. Bundles: Carbon (10 scenarios), Titanium (30), Damascus (64); each scenario delivered as EPW + DDY + STAT + PVsyst. Free, no auth, creates no order.