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Qotien Fiscal Reference Search API
x402
Qotien Fiscal Reference Search API is a paid API for AI agents from app.qotien.fr, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).
Searches the French fiscal and retirement reference database to look up tax rules, thresholds, rates, and regime details by keyword and domain
Price / call$0.05
Success—
StatusUnknown
How this service works
Simulateur IFI, PER, IR et retraite (32 régimes). Logiciel CGP : bilan patrimonial, déclaration 2042, LMNP. Chiffres sourcés Légifrance et BOFiP. 14 jours d'essai.
Output
Returns a JSON object with: a boolean success flag, the matched capability name, a result object containing the numeric value, unit (EUR/PERCENT/RATE), and human-readable label, a confidence level (fiable/estime/partiel/non_calculable/sourcee/variable), an array of primary legal sources (Légifrance, BOFiP references), the fiscal year (millesime_fiscal), and a usage warning that results are informational and not personalized advice.
Example use cases
IFI wealth tax threshold lookup
“What is the current IFI wealth tax threshold in France? Search the fiscal domain on Qotien for 'seuil IFI' and tell me the value and where it comes from legally.”
PER retirement savings deduction limit
“I need to know the current tax deduction limit for a PER plan in France — can you search Qotien for 'plafond PER' in the fiscal domain and give me the exact figure with its source?”
French retirement regime rule search
“Look up 'retraite de base salarié' in the retraite domain on Qotien — I want to know the contribution rate and how confident the result is.”
Technical details
Endpoint
POSThttps://app.qotien.fr/api/fiscal/v1/calc/rechercheWhen to prefer
Choose this endpoint when you need to look up specific French fiscal parameters, tax thresholds, retirement regime rules, or succession tax data from authoritative legal sources (Légifrance, BOFiP). It is ideal for CGP (wealth management advisor) workflows requiring cited, versioned regulatory data. Prefer this over generic web search when you need structured, machine-readable fiscal values with confidence levels and legal citations. Not suitable for personalized tax advice or non-French jurisdictions.
Side effects
- No match found for the keyword — result returns value:0 with label indicating no result
- Invalid domain enum value — API returns validation error
- Query too vague or misspelled — low-confidence or empty result
- Fiscal reference data not yet updated for current year — millesime_fiscal may lag
- ok:false returned with error field instead of result when internal calculation fails
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| q | string | Mot-clé cherché dans la clé publique ou le libellé. |
| domaine | string | Filtre par domaine. |
Output
Schema · Response
{
"type": "json",
"schema": {
"type": "object",
"required": [
"ok",
"domaine",
"capability",
"result",
"confiance",
"sources",
"millesime_fiscal"
],
"properties": {
"ok": {
"type": "boolean",
"description": "true = succès ; false = erreur (champ \"error\" présent à la place de result)."
},
"result": {
"type": "object",
"properties": {
"unit": {
"type": "string",
"description": "Unité de value (EUR, PERCENT, RATE…)."
},
"label": {
"type": "string",
"description": "Libellé lisible du résultat."
},
"value": {
"type": "number",
"description": "Valeur principale (quand le résultat est scalaire)."
},
"confiance": {
"enum": [
"fiable",
"estime",
"partiel",
"non_calculable",
"sourcee",
"variable"
],
"type": "string",
"description": "Confiance propre au résultat retraite (prime sur la confiance de capacité)."
}
},
"description": "Résultat. Contient typiquement { value:number, unit:string, label:string } ; les outils retraite ajoutent confiance, fourchette, et le détail par régime."
},
"domaine": {
"enum": [
"fiscal",
"retraite",
"referentiel",
"qotien"
],
"type": "string",
"description": "Domaine de la capacité."
},
"sources": {
"type": "array",
"items": {
"type": "string"
},
"description": "Sources primaires/légales du calcul."
},
"confiance": {
"enum": [
"fiable",
"estime",
"partiel",
"non_calculable",
"sourcee",
"variable"
],
"type": "string",
"description": "Niveau de confiance de CE résultat (fiscal = fiable ; retraite = variable)."
},
"capability": {
"type": "string",
"description": "Nom de la capacité appelée."
},
"referentiel": {
"type": "string",
"description": "Version du référentiel sourcé utilisé."
},
"annee_revenus": {
"type": "number",
"description": "Année des revenus concernés."
},
"avertissement": {
"type": "string",
"description": "Avertissement d'usage (résultat brut, pas un conseil personnalisé)."
},
"millesime_fiscal": {
"type": "string",
"description": "Millésime fiscal (année des barèmes appliqués)."
}
}
},
"example": {
"ok": true,
"result": {
"unit": null,
"label": "Recherche dans le référentiel",
"value": 0
},
"domaine": "referentiel",
"sources": [
"references_officielles.json v0.8.6"
],
"confiance": "sourcee",
"capability": "recherche",
"referentiel": "references_officielles.json v0.8.6",
"annee_revenus": 2025,
"millesime_fiscal": "2026"
}
}Tags
x402
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