# Services from app.qotien.fr on Zero

> app.qotien.fr serves 25 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/app.qotien.fr
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/app.qotien.fr/health.json

## Services

- [Qotien Fiscal Referential Value Lookup](https://www.zero.xyz/c/qotien-fiscal-referential-value-lookup-481e01de/llms.txt): $0.05/call via x402. Returns a sourced, dated scalar value from the French fiscal and retirement reference database for a given parameter key (e.g. IFI thresholds, PER ceilings, pension point values)
- [Qotien IFI Calculator — French Wealth Tax (Impôt sur la Fortune Immobilière) Simulator](https://www.zero.xyz/c/qotien-ifi-calculator-french-wealth-tax-imp-t-sur-la-fortune-immobili-63bba2bc/llms.txt): $0.25/call via x402. Computes the French IFI (Impôt sur la Fortune Immobilière) wealth tax due given a household's taxable real estate assets, deductible debts, and optionally household income for the art. 979 cap calculation.
- [Qotien — Simulateur Retraite Progressive (Fraction de Pension)](https://www.zero.xyz/c/qotien-simulateur-retraite-progressive-fraction-de-pension-77a89416/llms.txt): $0.25/call via x402. Calculates the progressive retirement pension fraction (retraite progressive) for French employees, civil servants, and self-employed workers based on age, quarters contributed, work schedule, and pension amount.
- [Qotien — French Pension Social Charges Calculator (ps_pension)](https://www.zero.xyz/c/qotien-french-pension-social-charges-calculator-ps-pension-0868fdfa/llms.txt): $0.05/call via x402. Calculates French social charges (CSG, CRDS, Casa, maladie) deducted from a gross pension to derive the net pension amount, based on household tax reference income, fiscal shares, and pension type breakdown.
- [Qotien — Rachat de Trimestres (VPLR) Calculator](https://www.zero.xyz/c/qotien-rachat-de-trimestres-vplr-calculator-8748cb41/llms.txt): $0.25/call via x402. Calculates the cost, pension gain, tax savings, and ROI of buying back pension quarters (rachat de trimestres VPLR) under French retirement law
- [Qotien PER Plafond Calculator](https://www.zero.xyz/c/qotien-per-plafond-calculator-9bfab3b0/llms.txt): $0.05/call via x402. Calculates the French PER (Plan d'Épargne Retraite) tax-deduction ceiling for a given taxpayer profile (employee or TNS/self-employed) based on professional income
- [Qotien Jeanbrun Tax Deduction Simulator](https://www.zero.xyz/c/qotien-jeanbrun-tax-deduction-simulator-245bf00b/llms.txt): $0.25/call via x402. Calculates the annual tax savings from the Jeanbrun rental amortization device (LF 2026) for a French property, based on housing price, rental category, and taxpayer marginal tax rate.
- [Qotien Flat Tax vs Barème Calculator](https://www.zero.xyz/c/qotien-flat-tax-vs-bar-me-calculator-3560f1b4/llms.txt): $0.25/call via x402. Compares French flat tax (PFU/30%) against progressive income tax (barème) for a given capital income to determine the optimal taxation option for a French household.
- [Qotien Pension Totale — Multi-Regime French Retirement Calculator](https://www.zero.xyz/c/qotien-pension-totale-multi-regime-french-retirement-calculator-ea9ba7b1/llms.txt): $0.25/call via x402. Calculates consolidated total pension (gross and net) across up to 32 French retirement regimes from point-based statements
- [Qotien — Calculateur de plus-value immobilière (France)](https://www.zero.xyz/c/qotien-calculateur-de-plus-value-immobili-re-france-08f4925d/llms.txt): $0.25/call via x402. Calculates French real estate capital gains tax (IR + prélèvements sociaux + surtaxe) including holding-period exemptions, renovation deductions, and LMNP 2025 reform adjustments
- [Qotien PER Tax Gain Calculator](https://www.zero.xyz/c/qotien-per-tax-gain-calculator-18044272/llms.txt): $0.25/call via x402. Calculates the income tax saving (gain fiscal) from a deductible PER (Plan d'Épargne Retraite) contribution for a French household
- [Qotien Pension Regime Calculator](https://www.zero.xyz/c/qotien-pension-regime-calculator-003f7e10/llms.txt): $0.25/call via x402. Calculates the pension amount for a specific French retirement regime given acquired points, departure age, and regime code
- [Qotien — French Tax Niche Cap Calculator (niches_plafond)](https://www.zero.xyz/c/qotien-french-tax-niche-cap-calculator-niches-plafond-84613831/llms.txt): $0.25/call via x402. Computes the French global tax-niche ceiling (plafonnement global des niches fiscales, CGI art. 200-0 A) given a list of tax advantages and their amounts.
- [Qotien French Social Levies Rate Calculator](https://www.zero.xyz/c/qotien-french-social-levies-rate-calculator-3f7c1644/llms.txt): $0.05/call via x402. Returns the applicable French social levies (prélèvements sociaux) rate for a given type of income, sourced from Légifrance and BOFiP
- [Qotien TMI Calculator — French Marginal Tax Rate (Taux Marginal d'Imposition)](https://www.zero.xyz/c/qotien-tmi-calculator-french-marginal-tax-rate-taux-marginal-d-bec143ce/llms.txt): $0.05/call via x402. Computes the French marginal income tax rate (TMI) for a household given their net taxable income, family situation, and number of fiscal shares (quotient familial)
- [Qotien French Income Tax Calculator (Impôt sur le Revenu)](https://www.zero.xyz/c/qotien-french-income-tax-calculator-imp-t-sur-le-revenu-2a18f9ef/llms.txt): $0.05/call via x402. Calculates French personal income tax (IR) based on household taxable income, family quotient parts, and marital status using official barème rates sourced from Légifrance and BOFiP.
- [Qotien CDHR French High-Income Differential Contribution Calculator](https://www.zero.xyz/c/qotien-cdhr-french-high-income-differential-contribution-calculator-b0d9d52e/llms.txt): $0.25/call via x402. Calculates the French Contribution Différentielle sur les Hauts Revenus (CDHR) based on household fiscal reference income, family quotient, and financial income breakdown
- [Qotien — Calculateur de surcote parentale (retraite)](https://www.zero.xyz/c/qotien-calculateur-de-surcote-parentale-retraite-d1da0e78/llms.txt): $0.05/call via x402. Calcule la surcote parentale applicable à la pension de retraite française (majoration de 1,25 % par trimestre, plafonnée à 5 %), basée sur les conditions légales de la MDA et du Code de la Sécurité Sociale.
- [Qotien Pension Annuities Calculator (French Special Regimes)](https://www.zero.xyz/c/qotien-pension-annuities-calculator-french-special-regimes-eb1e0dfa/llms.txt): $0.25/call via x402. Calculates annual pension amounts for French annuity-based retirement regimes (fonction publique, SNCF, RATP, IEG, etc.) given age, service duration, and reference salary.
- [Qotien — Surtaxe Plus-Value Immobilière](https://www.zero.xyz/c/qotien-surtaxe-plus-value-immobili-re-a6cb9aa8/llms.txt): $0.05/call via x402. Calculates the French high-gain real estate capital gains surtax (surtaxe sur les plus-values immobilières) given a net taxable gain amount, sourced from CGI art. 1609 nonies G.
- [Qotien French Retirement Pension Estimator](https://www.zero.xyz/c/qotien-french-retirement-pension-estimator-2bcaed1c/llms.txt): $0.25/call via x402. Estimates French retirement pension for salaried workers, civil servants, and self-employed professionals across 32 pension schemes based on age, status, and career data
- [Qotien CEHR Calculator — Contribution Exceptionnelle sur les Hauts Revenus](https://www.zero.xyz/c/qotien-cehr-calculator-contribution-exceptionnelle-sur-les-hauts-5b592903/llms.txt): $0.05/call via x402. Calculates the French exceptional high-income surtax (CEHR / CGI art. 223 sexies) based on household marital status and fiscal reference income.
- [Qotien Fiscal Reference Search API](https://www.zero.xyz/c/qotien-fiscal-reference-search-api-6bce50b1/llms.txt): $0.05/call via x402. Searches the French fiscal and retirement reference database to look up tax rules, thresholds, rates, and regime details by keyword and domain
- [Qotien Fiscal Optimisation Calculator (IFI, PER, IR, Retraite)](https://www.zero.xyz/c/qotien-fiscal-optimisation-calculator-ifi-per-ir-retraite-c9cbc17c/llms.txt): $1/call via x402. Computes French retirement and fiscal optimisation levers (PER, rachat de trimestres, progressive retirement, surcote parentale) based on personal profile and career data, sourced from Légifrance and BOFiP.
- [Qotien French Pension Regime Listing API](https://www.zero.xyz/c/qotien-french-pension-regime-listing-api-761255cf/llms.txt): $0.05/call via x402. Returns the list of calculable French retirement/pension regimes, optionally filtered by professional family (salarié, libéral, etc.)

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