The Tax Retirement MCP server,
connected in one click.
Calcul fiscal (IR, IFI, PER, plus-value) et retraite français — 32 régimes, sourcé et daté. Connect the official Tax Retirement MCP server to Claude, ChatGPT, or Cursor through gate — one gateway URL, no config files, security-checked.
Free to start · No credit card · No hosting needed
Add Tax Retirement to your AI in one minute
Pick your client. Copy, paste, done — or let gate handle sign-ins and policies for you.
claude mcp add --transport http tax-retirement https://app.qotien.fr/api/fiscal/v1/mcpRun in your terminal, then restart Claude Code.
Tax Retirement · https://app.qotien.fr/api/fiscal/v1/mcp
What your AI can do with Tax Retirement
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “fiscal_impot_revenu”: Impôt sur le revenu (barème 2026) — Impôt sur le revenu brut d'un foyer (barème progressif, quotient familial plafonné, décote). Revenus 202.”
“Use “fiscal_tmi”: Taux marginal d'imposition (TMI) — Tranche marginale d'imposition du foyer au barème 2026, en tenant compte du plafonnement du quotient fami.”
“Use “fiscal_cehr”: Contribution exceptionnelle sur les hauts revenus (CEHR) — CEHR due sur le revenu fiscal de référence (art. 223 sexies CGI). Distincte de la.”
“Use “fiscal_prelevements_sociaux”: Taux de prélèvements sociaux par nature de revenu — Taux de PS applicable (17,2 % dérogatoire ou 18,6 % droit commun post-LFSS 2026) selon l.”
How secure is the Tax Retirement MCP server?
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how Tax Retirement holds up.
Security grade A
gate scanned 35 tools on Sep 18, 2026 for prompt injection and risky tool definitions — nothing to flag.
- lowretraite_pension_totale: Unusually long tool description
- lowretraite_optimisation: Unusually long tool description
Official endpoint
Operated by Tax Retirement (qotien.fr) at its documented MCP endpoint — not a third-party mirror or community re-host.
No sign-in needed
This server only exposes public data — no account and no credentials are involved when you connect.
Scanned before it goes live
gate checks every tool for prompt injection, hidden instructions, data-exfiltration hints, and over-broad permissions before the server is available through your gateway.
Watched for drift
If Tax Retirement adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.
Connected in three steps
Connect your gate
Add one gateway URL to Claude, ChatGPT, or any MCP client. One-time setup, about two minutes.
Pick Tax Retirement
Choose Tax Retirement in the gate directory. No sign-in needed.
Use it anywhere
Tax Retirement's tools are live in every AI client you've connected — with rules and logging built in.
Free to start · No credit card · No hosting needed
The actual tools Tax Retirement exposes
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
fiscal_impot_revenu — Impôt sur le revenu (barème 2026) — Impôt sur le revenu brut d'un foyer (barème progressif, quotient familial plafonné, décote). Revenus 202
fiscal_tmi — Taux marginal d'imposition (TMI) — Tranche marginale d'imposition du foyer au barème 2026, en tenant compte du plafonnement du quotient fami
fiscal_cehr — Contribution exceptionnelle sur les hauts revenus (CEHR) — CEHR due sur le revenu fiscal de référence (art. 223 sexies CGI). Distincte de la
fiscal_prelevements_sociaux — Taux de prélèvements sociaux par nature de revenu — Taux de PS applicable (17,2 % dérogatoire ou 18,6 % droit commun post-LFSS 2026) selon l
fiscal_surtaxe_pv_immobiliere — Surtaxe sur les plus-values immobilières — Taxe additionnelle sur les plus-values immobilières nettes imposables supérieures à 50 000 € (bar
fiscal_plus_value_immobiliere — Plus-value immobilière (IR + PS + surtaxe) — Impôt total sur la plus-value de cession d'un bien immobilier hors résidence principale : IR 19
fiscal_per_plafond — Plafond de déduction PER de l'année — Plafond de versement PER déductible du revenu de l'année. Salarié (art. 163 quatervicies CGI) : 10 % d
fiscal_ifi — Impôt sur la fortune immobilière (IFI) — IFI dû à partir du patrimoine immobilier taxable : limitation des dettes (art. 974, patrimoine > 5
+ 27 more tools once connected
Who runs the Tax Retirement MCP server?
The Tax Retirement MCP server at a glance
https://app.qotien.fr/api/fiscal/v1/mcpQuestions, answered
Is there an official Tax Retirement MCP server?
Yes — Tax Retirement operates its own remote MCP server at app.qotien.fr. gate connects you to that official endpoint and adds security scanning, per-tool access rules, and an activity log on top.
How do I connect Tax Retirement to Claude or ChatGPT?
Add gate's gateway URL to your AI client once, then pick Tax Retirement in the directory. No account or sign-in is needed. From then on, Tax Retirement's tools are available in every client you've connected to gate.
Do I need to host anything?
No. Tax Retirement runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
Is the Tax Retirement MCP server safe to connect?
It's the vendor's official endpoint, and gate scans its tools for prompt injection and hidden instructions before it goes live, re-checks it whenever it changes, and lets you allow, block, or require approval for every single tool.
Is it free?
Yes — you can get started with gate for free and connect Tax Retirement in minutes. No credit card required.
Connect more than just Tax Retirement
Every server below works through the same gateway URL — connect once, add tools anytime.
Squarespace DomainsDesignView →Set up Tax Retirement in: Claude · Claude Code · ChatGPT · Cursor · VS Code
Give your AI Tax Retirement — safely.
One URL. All MCPs. Full control. Free to start.
Get started free