The Omelette Index

Model Context Protocol

MCP Connector

The index, readable by AI assistants. A public, read-only MCP server over streamable HTTP.

Connect it to Claude and ask in plain language: what an omelette costs in Germany, which city is dearest, how two countries compare. Every answer draws on the same published readings as the map, with sample sizes and freshness attached.

Endpoint

https://api.omeletteindex.com/mcp

No key, no account. The server is stateless and read-only, serving only what is already published on the site. It is listed in the official MCP Registry as com.omeletteindex/omelette-index.

Tools

index_overviewDataset statistics: places serving a plain omelette, published scopes, the global price centre, dearest and cheapest countries.
country_indexEvery published country ranked by price in EUR, or one country in full.
subdivisionsState and province readings inside a country, each measured against its own country.
citiesThe city leaderboard, filterable by country or city name.
compareSide-by-side readings for two or more countries.

Use it in Claude

On claude.ai: Settings, then Connectors, then Add custom connector, and paste the endpoint URL. In Claude Code:

claude mcp add --transport http omeletteindex https://api.omeletteindex.com/mcp

Any MCP client that speaks streamable HTTP works the same way. Figures are trimmed medians over readings from the last 90 days; a country, region or city is published once it has eight or more verified readings.