The Omelette Index MCP server

• Registry namecom.omeletteindex/omelette-indexverified in the MCP registry

The registry name sits under omeletteindex.com. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

• Stateanswerschecked 2026-10-24
• Tools5
• Server calls itselfomeletteindex
• Server version1.0.0
• Protocol version2025-06-18

On 2026-10-24 the server answered initialize and tools/list without a sign-in. First answer in 660 ms.

• Its tools do compare plain omelette prices across countries in EUR, but not split restaurant prices into ingredient and service costs.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

• INITE MCP score80 of 100answers 91 · does the job 50 · definitions 83 · context 100 · connects 100
• What an agent can do with it1 of 2 use cases
• Answered91% of days10 of 11 daily checks
• Median first answer677 ms
• Space in an agent's context≈ 510 tokensthe definitions of all its tools (5), which an agent carries on every turn
• Tool definitionsB · 83 of 100
• Typed results0 of 5 toolsdeclared outputSchema: results come typed, read once

• Not saying whether it only reads or can destroy: 5 of 5

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

• index_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.

• 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.

• subdivisions

  Published state/province readings inside one country, ranked by price, with each subdivision measured against its own country (vsCountryPct).

• cities

  Published city readings ranked by price (EUR). Optionally filter by country code or by a substring of the city name.

• compare

  Side-by-side omelette index readings for two or more countries, ranked by price in EUR.