Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Descripción del creador (original en inglés)
Keyless US grid carbon + power cost by ZIP: eGRID Scope 2, Scope 1 fuels, site ranking, clean hours
Estos tres nunca se combinan en una sola puntuación: las opiniones, las mediciones y la popularidad son cosas distintas.
Todavía no escribimos un resumen sencillo para este. Abajo están los datos que leímos del registro.
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Funciona en Claude para web, escritorio y móvil:
https://emission-factors.com/mcpEjecuta esto en tu terminal
claude mcp add --transport http emission-factors https://emission-factors.com/mcpPégalo en .cursor/mcp.json de tu proyecto, o en ~/.cursor/mcp.json
{
"mcpServers": {
"emission-factors": {
"url": "https://emission-factors.com/mcp"
}
}
}Tu navegador te pide permiso para abrir la app; luego la app muestra la configuración y te pide confirmar. Los valores de las claves quedan vacíos para que los completes tú.
Pégalo en .vscode/mcp.json de tu proyecto
{
"servers": {
"emission-factors": {
"type": "http",
"url": "https://emission-factors.com/mcp"
}
}
}Tu navegador te pide permiso para abrir la app; luego la app muestra la configuración y te pide confirmar. Los valores de las claves quedan vacíos para que los completes tú.
ChatGPT solo se conecta a servidores en internet:
https://emission-factors.com/mcpLos nombres de los menús pueden variar un poco según el plan y con el tiempo.
Tu elección se guarda en una cookie en este dispositivo; no necesitas cuenta.
Esta configuración se genera a partir de la ficha del creador en el registro. Si el README dice otra cosa, sigue el README.
Nombres y descripciones de las herramientas tal como los informó el servidor el 7 nov 2026. Los escribió el creador, no nosotros; los mostramos como texto sin formato.
lookup_emission_factorLook up EPA eGRID electricity emission factors for a US ZIP code. Returns CO2e (kg/kWh and lb/MWh), CO2, CH4, N2O, NOx, SO2, non-baseload rate, carbon-free %, generation mix (coal/gas/nuclear/hydro/wind/solar etc.), eGRID subregion code, the data year, and the Green-e residual mi
lookup_by_coordinatesLook up emission factors by latitude/longitude. Uses US Census Geocoder to resolve to ZIP first, then returns the same data as lookup_emission_factor. Useful when you have a facility address or lat/lon but no ZIP.
lookup_batchLook up emission factors for up to 100 ZIP codes in one call (split longer lists). Returns one compact row per ZIP - subregion, CO2e kg/kWh (location-based), residual mix (market-based), carbon-free %, utility - unless full is true, which returns every field (about 2 KB per ZIP).
calculate_emissionsCalculate Scope 2 CO2e for a facility from its ZIP and kWh, using both GHG Protocol methods: location-based (eGRID subregion rate) and market-based (Green-e residual mix applied to kWh not covered by RECs, PPAs or green tariffs). Returns kg CO2e for each method with the factors u
hourly_intensityGet hourly grid carbon intensity (kg CO2e per kWh) for any US ZIP code, derived from EIA-930 hourly fuel-mix data. Data lags up to about a day (not real-time). Returns time series with per-hour fuel mix, total generation, and carbon intensity. For timing and analysis (demand resp
plant_emissionsGet emissions from EPA Clean Air Markets Division (CAMD) for a specific US power plant or a state: fossil units over 25 MW reporting to the Acid Rain Program and CSAPR. Per facility returns total CO2 (short tons), gross generation (MWh), heat input (mmBtu), NOx and SO2 (lb), prim
utility_tariffGet the actual utility-specific electricity rate (not state average) for a US ZIP code or named utility. Returns the current default tariff with effective rate ($/kWh), fixed monthly charge, tier count, TOU indicator, and effective date. Data source: OpenEI URDB (NREL-hosted). Wi
electricity_rateGet the latest monthly average retail electricity rate ($/kWh and cents/kWh) for any US ZIP code, broken out by sector (residential, commercial, industrial, etc.). Data is state-level from EIA Form 861 - a ballpark, not utility- or ZIP-specific tariffs (use utility_tariff for tho
compare_sitesCompare and rank 2-25 candidate US sites (ZIP codes) for a facility, data center or EV/flexible load on grid carbon and electricity cost in one call. Per site: eGRID CO2e kg/kWh (location-based), Green-e residual mix (market-based), carbon-free %, $/kWh for the sector (the state'
cleanest_hoursFind the cleanest (lowest grid carbon) contiguous window of N hours in the day to run a flexible load (batch jobs, EV charging, pumping, HVAC pre-cooling) at a US ZIP code or balancing authority. Based on the hour-of-day pattern of the last 7 days (168 hours) of EIA-930 data, in
calculate_fuel_emissionsCalculate Scope 1 stationary-combustion emissions (CO2, CH4, N2O and CO2e) for fuels burned on site, using the GHG Emission Factors Hub 2026 (Cornerstone, successor to EPA's Hub; IPCC AR6 GWPs) by default, or EPA's 2025 edition (AR5) with edition=2025. Pass one or more items with
Revisamos información que cualquiera puede ver; no hemos leído el código. Las revisiones que no aplican no se cuentan. · Revisado el 10 nov 2026
El nombre en el registro se verificó con la cuenta de GitHub rozetyp, dueña del repo
Todavía no hemos leído este repo en GitHub
Todavía no hemos leído este repo en GitHub
Respondió en 291 ms (HTTP 200)
No hace falta iniciar sesión
Leímos 11 descripciones de herramientas y no encontramos instrucciones ocultas para la IA
Comparado con todos los servidores activos de esta categoría en el registro. Las estrellas solo cuentan cuando quien lo publica es dueño del repo.
Superó 3 de 3 revisiones básicas aplicables. No hemos leído el código. Antes de agregar una clave o un token, revisa qué acceso pide el servidor y usa una clave que tenga solo los permisos que necesitas.
El registro no indica ninguna clave obligatoria, aunque algunos servidores te piden iniciar sesión la primera vez que los usas.
Se ejecuta en la nube del creador. Te conectas por internet sin instalar nada, pero lo que envías pasa por los servidores del creador.
El repo de GitHub cambió por última vez –, y la última versión (1.8.0) llegó al registro hace 22 días.
Las apps compatibles con MCP, como Claude Desktop, Claude Code, Cursor y VS Code. Se conecta por URL, así que también funcionan las apps que aceptan servidores MCP remotos, como ChatGPT en modo desarrollador.
En la misma categoría: Spec Driven Development, Remote Desktop Commander, Backup Radar MCP
Servidores de la misma categoría hechos por otros creadores, ordenados por estrellas.
Cómo leer una tarjeta:↓ Descargas por semanai★ Estrellas de GitHubiTres pilares: reseñas · revisiones · usoiActualizado = fecha en que se publicó la última versión en el registroi
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
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Every Backup Radar v3 and v2 endpoint plus a local store that finds the backups nobody is watching.
Copiado tal cual del repo del creador. PopNx MCP no lo ha revisado ni lo respalda. Se quitaron HTML, imágenes y scripts. Los enlaces llevan fuera de este sitio.
Give Claude, Cursor, Cline, or any MCP client live access to US electricity data by ZIP code - grid-carbon emission factors, retail rates, hourly grid carbon intensity, power-plant emissions, and utility tariffs.
Backed by emission-factors.com, which wraps EPA eGRID, EIA-861, EIA-930, EPA CAMD, and OpenEI URDB into one ZIP-keyed API.
Free. No API key, no signup. The API is rate-limited per IP (2,000 requests/hour).
Once connected, your agent can answer things like:
There are two ways to run this. Most people want Option A.
Nothing to install, always up to date. The hosted endpoint is https://emission-factors.com/mcp (Streamable HTTP, no key).
Claude (web, desktop app, mobile) - Add to Claude. The link opens Claude's custom-connector dialog with the name and URL filled in; select Add, then Connect. By hand: Customize -> Connectors -> Add custom connector, URL https://emission-factors.com/mcp, OAuth fields empty.
Claude Code
claude mcp add --transport http emission-factors https://emission-factors.com/mcp
Cursor - add to ~/.cursor/mcp.json:
{
"mcpServers": { "emission-factors": { "url": "https://emission-factors.com/mcp" } } }
Cline / Continue / Zed / other clients - add a remote (Streamable HTTP) MCP server with URL https://emission-factors.com/mcp. No key needed.
Claude Desktop's
claude_desktop_config.jsononly starts local (stdio) servers - a"url"entry there does nothing. Use the connector link above, or Option B.
Runs the server as a local process that proxies the same public API. Useful for clients that only support stdio transport, or if you want to self-host.
Run straight from GitHub (builds on install, requires Node 18+):
{
"mcpServers": { "emission-factors": { "command": "npx", "args": ["-y", "github:rozetyp/emission-factors-mcp"] } } }
Or clone and run from source:
git clone https://github.com/rozetyp/emission-factors-mcp.git
cd emission-factors-mcp npm install # builds dist/ via the prepare script
{
"mcpServers": { "emission-factors": { "command": "node", "args": ["/absolute/path/to/emission-factors-mcp/dist/index.js"] } } }
Optional environment variable: EMISSION_FACTORS_API_BASE (defaults to https://emission-factors.com) if you run your own instance of the API.
Eleven tools, keyed by US ZIP code (or a direct code where noted). The remote server and this stdio build expose the same set.
| Tool | Purpose | Key inputs |
|---|---|---|
lookup_emission_factor | EPA eGRID CO2e + full generation mix for a ZIP | zip |
lookup_by_coordinates | Same, resolved from lat/lon via Census geocoder | lat, lon |
lookup_batch | Emission factors for up to 100 ZIPs at once | zips[] |
calculate_emissions | Scope 2 CO2e for a ZIP + kWh, location-based and market-based (Green-e residual mix) | zip, kwh, renewable_kwh |
hourly_intensity | Hourly grid carbon intensity (EIA-930, ~24h lag) | zip or ba, hours |
plant_emissions | Plant emissions (EPA CAMD): facility summaries or unit-hour records | facility_id or state, days |
utility_tariff | Utility-specific tariff, not state average (OpenEI URDB) | zip, utility, or eiaid |
electricity_rate | State-average retail rate by sector (EIA-861) | zip |
compare_sites | Rank 2-25 candidate sites on grid carbon, $/kWh and cleanest daily window | zips[], annual_kwh, sector |
cleanest_hours | Cleanest N-hour window of the day to run a flexible load, in local time | zip or ba, duration |
calculate_fuel_emissions | Scope 1 CO2e for fuels burned on site (EPA GHG Emission Factors Hub) | items[]: fuel, quantity, unit |
All tools return JSON. See full API docs for exact response shapes.
| Data | Source | Notes |
|---|---|---|
| Grid emission factors | EPA eGRID2023 Rev2 (+ eGRID2024 from Cornerstone via year=2024) | Annual, location-based, 27 subregions |
| Residual mix (market-based Scope 2) | Green-e Residual Mix 2025 (2023 data) | Per eGRID subregion |
| Fuel combustion factors (Scope 1) | GHG Emission Factors Hub 2026 (Cornerstone, successor to EPA's Hub); EPA 2025 via edition | 63 fuels, AR6 GWPs (AR5 for 2025) |
| Retail electricity rates | EIA Form 861 | State-level monthly average by sector |
| Hourly grid carbon intensity | EIA-930 | Derived from hourly fuel mix, ~24h lag |
| Plant-level emissions | EPA CAMD | fossil units >25 MW, published quarterly (45+ days after quarter end) |
| Utility-specific tariffs | OpenEI URDB (NREL) | ZIP matched to its utility by EIA ID |
| ZIP / lat-lon resolution | US Census (ZCTA + Geocoder) | ZIP -> eGRID subregion mapping |
retryAfter hint.curl "https://emission-factors.com/api/lookup?zip=94105". See the API docs and OpenAPI spec.npm install # install deps and build (prepare -> tsc)
npm run build # compile TypeScript to dist/ npm run dev # watch mode npm start # run the built server over stdio
Quick smoke test with the MCP Inspector:
npx @modelcontextprotocol/inspector node dist/index.js
The server is a thin proxy: each tool maps to one /api/* endpoint on emission-factors.com, validates inputs, and returns the JSON response. There is no local state and no key handling.
MIT - see LICENSE. Data belongs to its respective US government sources (EPA, EIA, Census) and NREL/OpenEI; this project and the API are an unofficial wrapper, not affiliated with those agencies.