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ECMWF Open Forecast Streams for a Run and Model (ECMWF)

ecmwf/list-forecast-streams

Lists the product streams (for example oper, enfo, waef, wave) that one ECMWF open-data model (ifs, aifs-single or aifs-ens) publishes for one run (00z, 06z, 12z or 18z) of one date at 0.25 degrees. Names and times only, not forecast values. Use a stream with the Forecast Files tool next. An unpublished date or run returns an error. Only about the last 2 to 3 days of forecast runs are kept, so listed dates roll off. Based on data and products of ECMWF, licensed CC BY 4.0, passed through unmodified and served by Eden Engine; not an official ECMWF 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 $5.

Data source

European Centre for Medium-Range Weather Forecasts (ECMWF)

This service is based on data and products of the European Centre for Medium-Range Weather Forecasts (ECMWF). Source: www.ecmwf.int. This ECMWF data is published under a Creative Commons Attribution 4.0 International (CC BY 4.0) licence, https://creativecommons.org/licenses/by/4.0/. © 2026 ECMWF. Directory listings are passed through unmodified. Served by Eden Engine; not an official ECMWF 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.

Install itCreate an account
agent
// 1. search: find the tool
omnial_search({ query: "what you need" })

// 2. inspect: price and input schema
omnial_inspect({ tool: "ecmwf/list-forecast-streams" })

// 3. learn: read the usage guide at runtime
omnial_learn({ tool: "ecmwf/list-forecast-streams" })

// 4. run: price the exact call first, then run it
omnial_execute({ tool: "ecmwf/list-forecast-streams", input: { /* see input_schema */ }, dry_run: true })
omnial_execute({ tool: "ecmwf/list-forecast-streams", 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.

ChargePrice
Per call
$0.0026
Updated
Oct 20, 2026

Input and output schemas

Input schema
input_schema.json
{
  "type": "object",
  "required": [
    "date",
    "run",
    "model"
  ],
  "properties": {
    "run": {
      "type": "string",
      "pattern": "^(00|06|12|18)z$",
      "description": "The forecast run, 00z, 06z, 12z or 18z (UTC hour). 06z and 18z cover fewer steps than 00z and 12z."
    },
    "date": {
      "type": "string",
      "pattern": "^[0-9]{8}$",
      "description": "The forecast date, YYYYMMDD. Only dates currently published exist (about the last 2 to 3 days); list the dates first with the Forecast Dates tool."
    },
    "model": {
      "enum": [
        "ifs",
        "aifs-single",
        "aifs-ens"
      ],
      "type": "string",
      "description": "The forecast model: ifs (ECMWF physics-based high-resolution and ensemble forecasts), aifs-single (the AI single forecast) or aifs-ens (the AI ensemble)."
    }
  },
  "additionalProperties": false
}
Output schema
output_schema.json
{
  "type": "object",
  "required": [
    "results"
  ],
  "properties": {
    "results": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "name",
          "directory"
        ],
        "properties": {
          "name": {
            "type": "string",
            "description": "Entry name: a date such as 20261018, a run such as 00z, a model, a stream, or a file such as 20261018000000-0h-oper-fc.grib2."
          },
          "size": {
            "type": [
              "integer",
              "null"
            ],
            "description": "Size in bytes; null for a directory."
          },
          "time": {
            "type": "string",
            "description": "Last-modified time, UTC, ISO 8601."
          },
          "directory": {
            "type": "boolean",
            "description": "True for a directory you can list further, false for a file."
          }
        },
        "additionalProperties": true
      },
      "description": "The directory's entries, in the order ECMWF lists them (alphabetical by name)."
    }
  },
  "additionalProperties": true
}