California Grid CO2 Emissions by Source: Natural Gas, Imports, Biomass (CAISO)

caisooutlook/co2-emissions

Today's carbon dioxide emissions attributed to electricity supply on the California ISO grid, in five-minute steps from midnight Pacific Time, by source: biogas, biomass, natural gas, coal, imports and geothermal, plus the newest reading. The file does not state a unit; values are passed through as published. Takes no input. California ISO data, reshaped from CSV into JSON and served by Eden Engine; not an official CAISO product.

activeper callv1

Price

$0.0026 per call

You pay the price shown. If a call turns out to cost more than its quote, you pay the actual price, capped at twice the quote. No monthly minimum. Top-ups start at $0.50.

Data source

California ISO

Source: California ISO (CAISO), Today's Outlook, caiso.com/todays-outlook. Reshaped from CSV into JSON; served by Eden Engine; not an official CAISO product.

Use it

Five steps: search, inspect, learn, run, settle. No per-tool setup; your agent reaches this tool through the meta-tools it already has.

Connect once and your AI can find and run this tool, and any other it needs.

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agent

// 1. search: find the tool
omnial_search({ query: "what you need" })

// 2. inspect: price and input schema
omnial_inspect({ tool: "caisooutlook/co2-emissions" })

// 3. learn: read the usage guide at runtime
omnial_learn({ tool: "caisooutlook/co2-emissions" })

// 4. run: price the exact call first, then run it
omnial_execute({ tool: "caisooutlook/co2-emissions", input: { /* see input_schema */ }, dry_run: true })
omnial_execute({ tool: "caisooutlook/co2-emissions", input: { /* ... */ } })

// 5. settle: the call is charged when it finishes, nothing to do

Not connected yet? Point your MCP client at https://mcp.eden-engine.com/mcp, then copy a config for your client.

Pricing

Every charge this tool can incur.

Charge	Price
Per call	$0.0026

Updated: Oct 24, 2026

Input and output schemas

Input schema

input_schema.json

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

Output schema

output_schema.json

{
  "type": "object",
  "required": [
    "columns",
    "latest",
    "rows"
  ],
  "properties": {
    "rows": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "time"
        ],
        "properties": {
          "time": {
            "type": "string",
            "description": "Time of day, HH:MM, Pacific Time."
          },
          "coal_co2": {
            "type": [
              "number",
              "null"
            ],
            "description": "Emissions from this source as published; the file states no unit. Null when not yet available."
          },
          "biogas_co2": {
            "type": [
              "number",
              "null"
            ],
            "description": "Emissions from this source as published; the file states no unit. Null when not yet available."
          },
          "biomass_co2": {
            "type": [
              "number",
              "null"
            ],
            "description": "Emissions from this source as published; the file states no unit. Null when not yet available."
          },
          "imports_co2": {
            "type": [
              "number",
              "null"
            ],
            "description": "Emissions from this source as published; the file states no unit. Null when not yet available."
          },
          "geothermal_co2": {
            "type": [
              "number",
              "null"
            ],
            "description": "Emissions from this source as published; the file states no unit. Null when not yet available."
          },
          "natural_gas_co2": {
            "type": [
              "number",
              "null"
            ],
            "description": "Emissions from this source as published; the file states no unit. Null when not yet available."
          }
        },
        "additionalProperties": true
      },
      "description": "One row per five minutes of the operating day so far, oldest first."
    },
    "latest": {
      "anyOf": [
        {
          "type": "object",
          "required": [
            "time"
          ],
          "properties": {
            "time": {
              "type": "string",
              "description": "Time of day, HH:MM, Pacific Time."
            },
            "coal_co2": {
              "type": [
                "number",
                "null"
              ],
              "description": "Emissions from this source as published; the file states no unit. Null when not yet available."
            },
            "biogas_co2": {
              "type": [
                "number",
                "null"
              ],
              "description": "Emissions from this source as published; the file states no unit. Null when not yet available."
            },
            "biomass_co2": {
              "type": [
                "number",
                "null"
              ],
              "description": "Emissions from this source as published; the file states no unit. Null when not yet available."
            },
            "imports_co2": {
              "type": [
                "number",
                "null"
              ],
              "description": "Emissions from this source as published; the file states no unit. Null when not yet available."
            },
            "geothermal_co2": {
              "type": [
                "number",
                "null"
              ],
              "description": "Emissions from this source as published; the file states no unit. Null when not yet available."
            },
            "natural_gas_co2": {
              "type": [
                "number",
                "null"
              ],
              "description": "Emissions from this source as published; the file states no unit. Null when not yet available."
            }
          },
          "additionalProperties": true
        },
        {
          "type": "null"
        }
      ],
      "description": "The newest row that holds a reading, or null when none does yet (just after midnight)."
    },
    "columns": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "The row keys, in file order."
    }
  },
  "description": "Today's CO2 emissions by source on the California ISO grid. Times are Pacific Time for the current operating day; the CSV carries no date, zone or unit and values are passed through as published.",
  "additionalProperties": false
}