European authorisations of investment firms

One integration covering the whole single market: where a national check needs twenty-seven integrations, this needs one. It is the European counterpart to the French authorisation check, and the right call when the counterparty is not established in France.

See a real response (free) Get the quote for /v1/eu/agrements

What the route returns

Catalogue description, exactly as agents read it:

EU financial authorisation lookup in the official ESMA Registers: search ~14,000 MiFID-regulated entities across the EU/EEA (investment firms, UCITS/AIFM managers) by name or LEI — authorisation status of the regulated entity, home and host member states, competent authority, authorisation dates. One integration covers all 27+ countries of Europe: an investment firm and regulated entity KYB check for the whole single market. Data freely available at the source (ESMA).

Expected identifier

A name, or a 20-character Legal Entity Identifier.

A wrongly formatted identifier 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.

Extract from a genuinely paid response

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.

{
 "requete": {
  "q": "BNP Paribas",
  "pays": null
 },
 "nombre_total": 64,
 "nombre_retourne": 10,
 "tronque": true,
 "agrements": [
  {
   "nom": "BNP PARIBAS ASSET MANAGEMENT EUROPE",
   "lei": "W51AX6427FJZJFPF8H34",
   "type_entite": "UCITS management company",
   "autorite_competente": "Autorité des Marchés Financiers (AMF)",
   "pays_origine": "FRANCE",
   "pays_accueil": [
    "AUSTRIA"
   ],
   "statut": "Active",
   "date_autorisation": "2002-04-01T00:00:00Z",
   "date_retrait": null
  }
 ],
 "source": "ESMA Registers — European Securities and Markets Authority (registers.esma.europa.eu). This data is freely available at the source.",
 "disclaimer": "Entités telles que publiées dans le registre unifié ESMA au moment de la consultation (statuts, autorités, passeports) — ni un avis de conformité ni une confirmation d'agrément ; vérifier auprès de l'autorité compétente.",
 "data_freshness": "interrogation ESMA en direct, cache 1 h"
}

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.

Calling the route

# 1. Le devis, sans rien payer : la route répond 402 avec son montant
curl -i https://api.sirenic.eu/v1/eu/agrements

# 2. L'appel réglé — le client x402 paie le devis et rejoue la requête
npx x402-fetch https://api.sirenic.eu/v1/eu/agrements

# 3. Ou en MCP, dans Claude Code / Cursor / un agent
claude mcp add --transport http sirenic https://api.sirenic.eu/mcp

Neighbouring routes

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

# Client x402 (npm) — le devis 402 est réglé et l'appel rejoué automatiquement
npx x402-fetch https://api.sirenic.eu/v1/entreprise/552032534

# Ou en MCP, dans Claude Code / Cursor
claude mcp add --transport http sirenic https://api.sirenic.eu/mcp

Routes used and pricing

RoutePriceWhat it returns
/v1/eu/agrements (free sample)$0.01EU financial authorisation lookup in the official ESMA Registers: search ~14,000 MiFID-regulated entities across the EU/EEA (investment firms, UCITS/AIFM managers) by name or LEI — authorisation status of the regulated entity, home and host member states, competent authority, authorisation dates. One integration covers all 27+ countries of Europe: an investment firm and regulated entity KYB check for the whole single market. Data freely available at the source (ESMA).

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/eu/agrements Get notified about euro packs

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