emission-factors-com

emission-factors-com Rate API

The Rate API from emission-factors-com — 1 operation(s) for rate.

GitHub OpenAPI

Operations 1

GET /api/rate Latest monthly average retail electricity rate by sector #

Specifications

⚙
OpenAPI
https://artifacts.apis.io/emission-factors-com/openapi/emission-factors-com-rate-api-openapi.yml

Schemas & Data

📊
JSONSchema
https://artifacts.apis.io/emission-factors-com/json-schema/emission-factors-com-lookup-response-schema.json

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This API 
curl "https://apis.io/api/v1/apis/emission-factors-com:emission-factors-com-rate-api"
All apis 
curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.

OpenAPI Specification

emission-factors-com-rate-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  title: emission-factors.com Rate API
  version: 2.1.0
  description: 'US electricity and fuel emission data by ZIP code: EPA eGRID Scope 2 factors (location-based) with the Green-e residual mix (market-based), Scope 1 fuel factors, EIA retail rates and hourly grid intensity, EPA CAMD plant emissions and OpenEI utility tariffs. Free, no key. Query parameters and JSON body fields not listed here are rejected with 400.'
  contact:
    url: https://emission-factors.com
  license:
    name: 'Data licenses vary by source: US government works (public domain); eGRID2024, GHG Hub 2026, OpenEI URDB and ZIP-to-utility data, and GeoNames are CC-BY-4.0; the Green-e residual mix is published by the Center for Resource Solutions. See /methodology.'
    url: https://emission-factors.com/methodology
servers:
- url: https://emission-factors.com
  description: Production
tags:
- name: Rate
paths:
  /api/rate:
    get:
      summary: Latest monthly average retail electricity rate by sector
      operationId: retailRate
      parameters:
      - name: zip
        in: query
        required: true
        schema:
          type: string
        example: '94105'
        description: 5-digit ZIP or ZIP+4
      responses:
        '200':
          description: Residential, commercial, industrial, transportation, all-sectors prices from EIA Form 861 (sectors with no sales are omitted)
        '400':
          description: Malformed ZIP
        '404':
          description: No state mapping (e.g. Puerto Rico, territories)
        '503':
          description: EIA API temporarily unavailable; retry (Retry-After header)
      tags:
      - Rate