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Mitoyens MCP server

Which MCP servers are Mitoyens's own, from the official registry and from asking its own domain, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-31

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Whose server it is
  • Registry namefr.mitoyens/pesticidesverified in the MCP registry

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

When we asked itchecked 2026-10-31
  • Stateanswerschecked 2026-10-31
  • Tools9
  • Server calls itselfmitoyens-data
  • Server version1.1.0
  • Protocol version2025-06-18

On 2026-10-31 the server answered initialize and tools/list without a sign-in. First answer in 475 ms.

Should an agent connect itNot proven either way yet
  • Its tools do every use case we checked: check declared crops on parcels near a home or school; look up pesticide levels in tap water for a commune.
  • Checked on 5 of the 7 days it takes to judge reliability.

Once connected

  • For "look up pesticide levels in tap water for a commune", the likely first call is get_tap_water.

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.

Measured dailydaily checks: 5, the first on 2026-10-31
  • INITE MCP scoreafter a weeka score needs 7 daily checks: 5 so far
  • What an agent can do with it2 of 2 use cases
  • Answeredmeasuring5 of the 7 daily checks it takes to print a share
  • Median first answer675 ms
  • Space in an agent's context≈ 2,532 tokensthe definitions of all its tools (9), which an agent carries on every turn
  • Tool definitionsA · 100 of 100
  • Typed results2 of 9 toolsdeclared outputSchema: results come typed, read once
  • Every tool passes all six checks.

What an agent can do with it

  • can do · check declared crops on parcels near a home or school
  • not sure · compare départements by estimated pesticide exposure index
  • can do · look up pesticide levels in tap water for a commune

Each of the product's use cases, put to Jev against this server's tool list: can an agent do it with these tools?

Worth a look

None of the five warning signs in these definitions.

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 →

Tools it offers9 tools · read 2026-10-31
  • search_communes

    Recherche de communes françaises par nom ou code postal (préfixe, ≥2 caractères). Renvoie nom, code INSEE, code postal et slug. Si plusieurs communes correspondent (un même nom existe souvent dans plusieurs départements), n’en choisissez…

  • get_commune_exposure

    Fiche d’exposition d’une commune : indice combiné Rigal & Perrot (air + eaux de surface + intensité de traitement estimée à partir des ventes), parcelles agricoles dans 1 km, écoles proches, achats BNVD du code postal et profil chimique…

  • rank_communes

    Classement paramétrique des communes par exposition. Filtrer par département, fixer un seuil de population, choisir le tri (indice combiné, percentile, population), le sens (order : desc par défaut, valeurs les plus hautes en premier…

  • compare_communes

    Tableau comparatif aligné de 2 à 5 communes sur les mêmes indicateurs (exposition, parcelles, bio, écoles, achats BNVD). Codes = INSEE ou slug. Si un code est ambigu ou introuvable, la ligne renvoie "options" (communes candidates avec…

  • department_profile

    Profil départemental : indice d’exposition, tonnages BNVD (CMR, herbicides, fongicides, insecticides), et profil de traitement par culture (IFT, fonction dominante, substances). Source : Mitoyens (mitoyens.fr) — licence CC BY-NC 4.0…

  • get_substance

    Profil toxicologique et réglementaire d’une substance active phytosanitaire : toxicité (humain ADI/ARfD, abeilles, oiseaux, mammifères, vie du sol), perturbateur endocrinien (EFSA, Règlement UE 2018/605) et retrait ou non-renouvellement…

  • get_school_proximity

    Détail de la proximité écoles ↔ parcelles agricoles d’une commune : pour chaque école, distance, direction et culture du champ le plus proche (jusqu’à 5 champs), nombre de parcelles dans 500 m, surface, parcelles déclarées bio au RPG et…

  • get_tap_water

    Résultats du contrôle sanitaire de l’eau distribuée (SISE-Eaux) pour les pesticides et leurs métabolites dans une commune : état global (pas de données, analysé sans détection, détection sans dépassement relevé, dépassement), compteurs de…

  • show_commune_map

    Affiche une carte interactive des parcelles agricoles dans 1 km autour d’une commune (halo 1 km, parcelles, bio). Rendue nativement dans les clients compatibles MCP Apps (Claude) ; sinon renvoie les données et le lien de la carte. Fournir…

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

{
  "mcpServers": {
    "pesticides": {
      "type": "http",
      "url": "https://mitoyens.fr/api/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http mitoyens https://mitoyens.fr/api/mcp

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://mitoyens.fr/api/mcp as a custom connector in the settings.

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.