Suxession — French Inheritance Tax Engine

fr.suxessionPublished by suxession.frOfficial publisherv0.6.1.0Updated Oct 24, 2026

French inheritance tax engine: simulate, compare scenarios, savings estimate, premium optimizer.

VerifiedStreamable HTTPWeb executableFinance

Overview

AI-generated overview

Lets an assistant compute French inheritance tax, compare transmission scenarios, and estimate possible savings.

What you can do
Provides French inheritance tax calculators: it computes duties per heir from the estate, spouse, children and matrimonial regime, and returns the relevant French tax code articles and guide links. It can compare one to five transmission scenarios, including the second death where a spouse is involved. Another tool estimates the exact savings available through 25 optimisation levers without naming the individual levers; the full optimiser output requires an access code obtained after payment.
When to use it
Useful for a first look at French inheritance tax exposure, for comparing a few inheritance arrangements such as a spouse taking all usufruct versus a quarter outright, or for sizing potential savings. Formal planning still needs a notary.
Requirements
Remote HTTP endpoint; no package install or account needed. Basic simulation and scenario comparison are free. The premium optimiser needs an access code obtained after payment, activated through the unlock tool.
Before you install
Some features are paid (a one-time 99 EUR fee) and require supplying the post-purchase access code in the conversation. The savings estimate withholds the individual optimisation levers until premium access is unlocked. Results are informational; final arrangements should be confirmed with a notary.

Installation

In SourceWeft

  1. Open Suxession — French Inheritance Tax Engine in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/fr.suxession%2Fsuxession/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "suxession-french-inheritance-tax-engine": {
      "type": "http",
      "url": "https://suxession.fr/mcp"
    }
  }
}

Tools

5

simuler_droits_succession

Simulation des droits de succession

Calcule les droits de succession français (cas simple) : patrimoine, conjoint, enfants, régime matrimonial. Réponse : droits par héritier + articles CGI de référence + liens guide. Gratuit, sans compte.

Parameterssituationrequired

comparer_scenarios

Comparaison de scénarios

Compare 1 à 5 scénarios de transmission (ex. usufruit total vs quart en pleine propriété), second décès inclus si conjoint. Gratuit. La projection « donation vs succession » (transmission de son vivant) est une analyse premium, hors de ce périmètre gratuit.

Parametersscenariosrequired

estimer_economie_optimisation

Teaser d'économie potentielle

Estime le montant EXACT de l'économie potentielle via les 25 leviers d'optimisation (gratuit, même calcul que le site). Les leviers individuels ne sont jamais nommés ni chiffrés dans la réponse ; prix (99 €, paiement unique) et lien de paiement inclus. Les leviers détaillés sont révélés par explorer_optimisations après achat.

Parameterssituationrequired

deverrouiller_acces

Déverrouillage par code d'accès

Active l'accès premium à partir du code d'accès reçu après paiement (affiché sur la page de confirmation). Le code est transmis tel quel, sans modification.

Parameterscoderequired

explorer_optimisations

Exploration des optimisations (premium)

Résultats de l'optimiseur complet (premium, accès 99 €) : nécessite un accès actif déverrouillé via deverrouiller_acces. Retourne les stratégies d'optimisation complètes : leviers, montants, articles CGI, avertissements. La mise en place se finalise avec un notaire.

Parameterscoderequiredsituationrequired

Version history

2
  1. v0.6.1.0LatestSep 30, 2026
  2. v0.6.0.0Sep 29, 2026

Score

72% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts

    Publish an icon in the registry entry.

  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • LicenseNot applicable

    A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.