CaLesVaut MCP server

• Registry namefr.calesvaut/calesvautverified in the MCP registry

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

• Stateanswerschecked 2026-10-27
• Tools14
• Server calls itselfcalesvaut
• Server version0.1.0
• Protocol version2025-06-18

On 2026-10-27 the server answered initialize and tools/list without a sign-in. First answer in 532 ms.

• Whether its tools do the product's job has not been judged yet.
• Checked on 1 of the 7 days it takes to judge reliability.

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 scoreafter a weeka score needs 7 daily checks: 1 so far
• Answeredmeasuring1 of the 7 daily checks it takes to print a share
• Median first answer498 ms
• Space in an agent's context≈ 6,365 tokensthe definitions of all its tools (14), which an agent carries on every turn
• Tool definitionsA · 100 of 100
• Typed results0 of 14 toolsdeclared outputSchema: results come typed, read once

• Every tool passes all six checks.

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 →

• find_place

  Resolves a city name or postcode: its centre, extent and number of recorded sales, and the French communes of that name (INSEE codes) for crime_stats.

• property_prices

  Median sale price and price per m² of recorded sales within a radius, overall, per property type, per year and per number of rooms (1, 2, 3, 4, 5+), over the last years of data.

• sales_at_address

  Every recorded sale at a street address (date, price, floor area, price per m², rooms, type), newest first, and a summary of its street with its latest other sales. Spellings are loose: "17 bis avenue de Saint-Mandé" finds "17 B AV DE ST…

• copro_at_address

  The copropriété(s) the Registre national d'immatriculation des copropriétés (RNIC, Anah, Licence Ouverte 2.0) registers at a street address, matched by cadastral parcel (BAN geocoding then IGN API Carto), else by normalised address, else…

• recent_sales

  The latest recorded sales within a radius (date, price, floor area, price per m², rooms, type, address, distance).

• crime_stats

  Offences recorded by police and gendarmerie (SSMSI, latest year) for a French commune — by name, INSEE code or position — per indicator, as rates per 1,000 inhabitants (per 1,000 dwellings for burglaries), next to its département, région…

• commune_profile

  For a French commune (by name, INSEE code or position) or département: for a commune, its zone ABC (which sets the PTZ, Denormandie and LLI), whether it is a zone tendue, its rent control (encadrement des loyers, with its territory) and…

• amenities_nearby

  Schools (maternelle, primaire, collège/lycée), bakeries, night clubs, noisy bars and every bar or café within a radius (France), golf courses within 3 km (a point in a home's favour), and public transport (OpenStreetMap): train and RER…

• street_prices

  The streets around a place with their recorded sales (DVF) and median price per m² over the last 5 years, the most expensive first, or ranked by how their median moved: the latest 24 months against the 24 before (falling or rising first…

• sea_views

  The sale addresses around a place whose sun goes down (or comes up) into the sea, month by month, with how far the shore is and their latest sale. Worked out from OpenStreetMap for France's sale addresses within 300 m of the coast: the…

• appraise_listing

  Compares a French listing's asking price with recent recorded sales (DVF) of the same type and a similar size around it (the smallest radius with enough of them): estimate with its interquartile range, gap and verdict, closest comparables…

• rank_communes

  France's communes in a département (departement, e.g. "93"), a région (region, INSEE code, e.g. "11" for Île-de-France) or within radius_km of a place, ranked by the median price per m² of their recorded sales of a type (DVF, the latest…

• ptz

  What a first-time buyer's PTZ may be, by the rules of offers issued from 1 April 2025 to 31 December 2027 (service-public.fr, checked 15 September 2026): the commune's zone ABC (place, address, lat/lng, or zone), the household's size…

• home_loan

  France's home-loan rates this month (L'Observatoire Crédit Logement/CSA, per 15, 20 and 25 years, excluding insurance) and, as asked: what a household can borrow (income_monthly: payments, insurance included, at most 35 % of net income…