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MCP Server

The Omelette Index

com.omeletteindex/omelette-index
Commerce & Retail Data & Analytics Public & reachable MCP 2025-11-25

What this MCP does

Provides country, subdivision, and city comparisons based on plain-omelette prices in euros as a purchasing-power index.

Capabilities

Tools

5 tools
cities
City leaderboard
Published city readings ranked by price (EUR). Optionally filter by country code or by a substring of the city name.
Input schema 
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'properties': {'query': {'type': 'string', 'description': 'Case-insensitive substring of the city name'}, 'country': {'type': 'string', 'maxLength': 2, 'minLength': 2, 'description': 'ISO 3166-1 alpha-2 country code'}}}
compare
Compare countries
Side-by-side omelette index readings for two or more countries, ranked by price in EUR.
Input schema 
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['countries'], 'properties': {'countries': {'type': 'array', 'items': {'type': 'string', 'maxLength': 2, 'minLength': 2}, 'maxItems': 20, 'minItems': 2, 'description': 'ISO 3166-1 alpha-2 country codes'}}}
country_index
Country index
The omelette price index by country. Without arguments: every published country ranked by price (EUR, trimmed median). With a country: that country's full reading.
Input schema 
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'properties': {'country': {'type': 'string', 'maxLength': 2, 'minLength': 2, 'description': 'ISO 3166-1 alpha-2 country code, e.g. US, DE, SE'}}}
index_overview
Dataset overview
Descriptive statistics for The Omelette Index: how many places serve a plain omelette, countries/subdivisions/cities published, the global price centre in EUR, and the dearest and cheapest published countries.
Input schema 
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'properties': {}}
subdivisions
Subdivisions of a country
Published state/province readings inside one country, ranked by price, with each subdivision measured against its own country (vsCountryPct).
Input schema 
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['country'], 'properties': {'country': {'type': 'string', 'maxLength': 2, 'minLength': 2, 'description': 'ISO 3166-1 alpha-2 country code'}}}
History

Recent tool changes

Added
compare
Sept. 17, 2026, 12:36 p.m.
Added
cities
Sept. 17, 2026, 12:36 p.m.
Added
subdivisions
Sept. 17, 2026, 12:36 p.m.
Added
country_index
Sept. 17, 2026, 12:36 p.m.
Added
index_overview
Sept. 17, 2026, 12:36 p.m.
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