MCP server

Emission Factors

io.github.rozetyp/emission-factors

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Keyless US grid carbon + power cost by ZIP: eGRID Scope 2, Scope 1 fuels, site ranking, clean hours

Website Source

At a glance

Type

MCP server

Publisher

Not verified

Status

Working at last check

Tools

11

Token cost

About 3,498 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http emission-factors https://emission-factors.com/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.emission-factors]
url = "https://emission-factors.com/mcp"

Gemini CLI

{"mcpServers":{"emission-factors":{"httpUrl":"https://emission-factors.com/mcp"}}}

Cursor

{"mcpServers":{"emission-factors":{"url":"https://emission-factors.com/mcp"}}}

VS Code

{"servers":{"emission-factors":{"type":"http","url":"https://emission-factors.com/mcp"}}}

Antigravity

agy mcp add emission-factors https://emission-factors.com/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"emission-factors","server_url":"https://emission-factors.com/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"emission-factors","server_url":"https://emission-factors.com/mcp"}

Tools

• calculate_emissions ~260 tokens
  Calculate 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 used.
• calculate_fuel_emissions ~429 tokens
  Calculate 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 fuel, quantity and
• cleanest_hours ~335 tokens
  Find 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 local time. Returns
• compare_sites ~435 tokens
  Compare 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 %, $/kWh for the sector (the state's latest full-year a
• electricity_rate ~140 tokens
  Get the latest monthly average retail electricity rate ($/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 those).
• hourly_intensity ~364 tokens
  Get 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 response, load shifting,
• lookup_batch ~198 tokens
  Look 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).
• lookup_by_coordinates ~135 tokens
  Look 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_emission_factor ~252 tokens
  Look 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 mix rate (the market-b
• plant_emissions ~566 tokens
  Get 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), primary fuel type, opera
• utility_tariff ~384 tokens
  Get 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). With a ZIP, matches th

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