API for the French market-authority blacklist and registrations

GET/v1/regulateurs/fr/alertes

Price: $0.01
Free quota: Included
Family: Compliance, sanctions, regulators

Parameters
Parameter	Where	Example
`nom`	query · optional	no example
`siren`	query · optional	`552032534`

What is charged

200Ed25519-signed response, charged at the route's price
402Signed x402 quote, nothing is debited
4xxUnknown or invalid identifier, never charged
5xxUpstream source unavailable, never charged

See a real response (free) Get the quote for /v1/regulateurs/fr/alertes

curlx402MCPPythonJS

curl "https://api.sirenic.eu/v1/regulateurs/fr/alertes?siren=552032534" \
  -H "X-Api-Key: $SIRENIC_KEY"

# 1. The quote, without paying anything: the route answers 402 with its amount
curl -i "https://api.sirenic.eu/v1/regulateurs/fr/alertes?siren=552032534"

# 2. The paid call: the x402 client settles the quote and replays the request
npx x402-fetch "https://api.sirenic.eu/v1/regulateurs/fr/alertes?siren=552032534"

# Or over MCP, in Claude Code / Cursor / an agent
claude mcp add --transport http sirenic https://api.sirenic.eu/mcp

import os, requests

r = requests.get(
    "https://api.sirenic.eu/v1/regulateurs/fr/alertes?siren=552032534",
    headers={"X-Api-Key": os.environ["SIRENIC_KEY"]},
)
print(r.json())

const r = await fetch("https://api.sirenic.eu/v1/regulateurs/fr/alertes?siren=552032534", {
  headers: { "X-Api-Key": process.env.SIRENIC_KEY },
});
console.log(await r.json());

200 OK · extractx-credits-charged: 0.01

{
 "requete": {
  "nom": null,
  "siren": "552032534"
 },
 "correspondances_liste_noire": [],
 "psan": [],
 "sgp": [],
 "listes": {
  "liste_noire": {
   "disponible": true,
   "entrees": 3382,
   "rafraichie_le": "2026-07-29T07:29:17.796Z"
  }
 },
 "source": "AMF — Autorité des marchés financiers, jeux open data officiels sur data.gouv.fr (listes noires, liste blanche PSAN, SGP agréées), Licence Ouverte 2.0, export quotidien",
 "disclaimer": "Aide au criblage par rapprochement de noms sur les listes telles que publiées par l'AMF — ni un avis de conformité ni une décision ; vérifier toute correspondance sur amf-france.org. Une liste `disponible: false` signifie que sa source est momentanément injoignable (jamais un faux « aucune correspondance »). / Screening aid over the official AMF lists as published — not a compliance opinion; verify any hit at amf-france.org.",
 "data_freshness": "listes AMF quotidiennes (data.gouv), cache 24 h"
}

Dated snapshot from 2026-07-29, truncated to one item per array. It is not live data. The full extract is served free of charge from the samples surface, and the schema from the OpenAPI document.

Full real response ↗

What the route returns

Catalogue description, exactly as agents read it:

French financial regulator alerts and scam check against the official AMF blacklist: screen a name for unauthorized investment websites, scams and AMF impersonation, and look up PSAN crypto provider registrations and licensed asset management companies (SGP) by name or SIREN. A compliance screening of the regulator blacklists for agents vetting French counterparties in crypto and asset management. Official AMF open data (Licence Ouverte 2.0), refreshed daily.

Expected identifier

A name, or a 9-digit company number.

A wrongly formatted identifier in the path returns 400 and is not billed — but it costs you a round trip. It is the leading cause of failed calls on the foreign routes. A search parameter, by contrast, is cleaned up: unsupported characters are stripped and the usable query is served.

Price and billing

Price: $0.01. The authoritative amount is the one in the 402 quote returned by the route itself, not this text, which derives from the same grid but is still just a page.

An error response cancels the payment: a 400, 404 or 503 is never billed. An upstream outage closes the route with a 503 rather than serving a degraded response.

Neighbouring routes

/v1/entreprise/{siren}/agrements: $0.02
/v1/sanctions/check: $0.02
/v1/eu/agrements: $0.01

How you pay

Every route is paid per call, in USDC or EURC on the Base network, over the x402 protocol: no account to create, no API key, no subscription. The first call returns a 402 quote your client settles, then replays the call. A failed call is never billed.

Would you rather have a euro invoice and prepaid credits? That is in preparation, and we will not announce a date until it is open. Write to contact@sirenic.eu and we will let you know when it opens.

Paid responses are Ed25519-signed: you can later prove what was served to you, and when. The whole catalogue is free to read in the OpenAPI document and in llms.txt.

One call, end to end

# x402 client (npm): the 402 quote is settled and the call replayed automatically
npx x402-fetch https://api.sirenic.eu/v1/entreprise/552032534

# Or over MCP, in Claude Code / Cursor
claude mcp add --transport http sirenic https://api.sirenic.eu/mcp

Routes used and pricing

Route	Price	Sample	What it returns
`/v1/regulateurs/fr/alertes`	$0.01	free sample	French financial regulator alerts and scam check against the official AMF blacklist: screen a name for unauthorized investment websites, scams and AMF impersonation, and look up PSAN crypto provider registrations and licensed asset management companies (SGP) by name or SIREN. A compliance screening of the regulator blacklists for agents vetting French counterparties in crypto and asset management. Official AMF open data (Licence Ouverte 2.0), refreshed daily.

Take it further

No account to create, no key to request: the first step is free and shows you exactly what you would be buying.

See a real response (free) Get the quote for /v1/regulateurs/fr/alertes Get notified about euro packs

French financial regulator alerts