---
title: "Multi-country comparison (fill levels, capacities, trends)"
method: POST
path: "/api/gas-storage/compare-countries"
tags: ["Gas Storage (AGSI)"]
---

# Multi-country comparison (fill levels, capacities, trends)

`POST /api/gas-storage/compare-countries`

## Request

- Base URL: `https://api.cernion.de`
- URL: `https://api.cernion.de/api/gas-storage/compare-countries`
- Auth: none declared

Compare gas storage metrics across multiple European countries.

**Available metrics:**
- fill_percentage: Current storage fill level
- capacity: Total storage capacity
- withdrawal_rate: Current withdrawal rate
- coverage_days: Days of supply coverage

**Use cases:**
- Cross-border supply security analysis
- Policy effectiveness comparison
- Regional risk assessment

## Query parameters

- `token` string

## Request body

- object
  - `countries` string[], required: Array of country codes (min 2)
  - `metric` 'fill_percentage' | 'capacity' | 'withdrawal_rate' | 'coverage_days', required: Comparison metric
  - `format` 'json' | 'csv' | 'xlsx' | 'xls': Output format. "csv" and "xls"/"xlsx" trigger a file download.
  - `token` string: Optional Cernion MCP token for this request. Overrides CERNION_TOKEN when provided.

## Response `200`

Country comparison retrieved successfully

---

[API](https://skmtc.dev/cernion/apis/cernion-energy-tools-api.md) · [All operations](https://skmtc.dev/cernion/apis/cernion-energy-tools-api/llms.txt) · [OpenAPI document](https://skmtc.dev/cernion/apis/cernion-energy-tools-api/revisions/cdb94473b538?raw)