# Screen a name against sanctions lists

The characteristic that matters: this route never returns a bare yes/no. Name matching is approximate — transliterations, aliases, reversed orders — and returning “match” without a score would turn a namesake into an accusation. Each list also returns its publication date and what that date means.

## What the route returns

Catalogue description, exactly as agents read it:

**Sanctions screening (AML/KYC): screen a person or company name against 6 official watchlist sources — UN consolidated, EU FSF, US OFAC SDN, UK Sanctions List, French national asset-freeze register, Swiss SECO list — six official lists in one call. Fuzzy watchlist matching with a 0-100 confidence score per hit — never a bare yes/no. Each list reports its entry count, publication date and what that date means. One AML screening call covers UN, EU, OFAC, UK, FR and CH.**

## Expected identifier

`name` parameter: an individual's or a company's name.

> ⚠️ 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](https://api.sirenic.eu/exemples/), and the schema from the OpenAPI document.

```
{
 "requete": {
  "nom": "Vladimir Putin",
  "annee_naissance": 1952
 },
 "nombre_correspondances": 1,
 "correspondances": [
  {
   "liste": "ue",
   "nom_principal": "Vladimir Vladimirovich PUTIN",
   "score": 93,
   "niveau": "forte",
   "regime": "(EU) 2022/330"
  }
 ],
 "listes_consultees": [
  {
   "liste": "ue",
   "libelle": "Liste consolidée des sanctions financières de l'UE (FSF)",
   "entrees": 6017,
   "publication": "2026-07-28"
  }
 ],
 "listes_absentes": []
}
```

## Price and billing

Price: **$0.02**. 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/sanctions/check

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

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

## What this route does not do

**Official sources only**, never a commercial aggregator. Politically exposed persons are **not** served. The name you send is never logged.

## Neighbouring routes

- `/v1/kyb/{siren}` — $0.15
- `/v1/regulateurs/fr/alertes` — $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](mailto:contact@sirenic.eu?subject=Euro%20credit%20packs) 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](https://api.sirenic.eu/openapi.json) and in [llms.txt](https://api.sirenic.eu/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

| Route | Price | What it returns |
| --- | --- | --- |
| `/v1/sanctions/check` | $0.02 | Sanctions screening (AML/KYC): screen a person or company name against 6 official watchlist sources — UN consolidated, EU FSF, US OFAC SDN, UK Sanctions List, French national asset-freeze register, Swiss SECO list — six official lists in one call. Fuzzy watchlist matching with a 0-100 confidence score per hit — never a bare yes/no. Each list reports its entry count, publication date and what that date means. One AML screening call covers UN, EU, OFAC, UK, FR and CH. |

> ⚠️ Screening never returns a bare yes/no: every hit carries a 0-to-100 confidence score. Politically exposed persons are not served.

## Take it further

- [See a real response (free)](https://api.sirenic.eu/exemples/sanctions-check.json)
- [Get the quote for /v1/sanctions/check](https://api.sirenic.eu/v1/sanctions/check)
- [Get notified about euro packs](mailto:contact@sirenic.eu?subject=Euro%20credit%20packs)

## Read next

- [Screening a counterparty against sanctions lists](https://api.sirenic.eu/en/use-cases/screen-name-against-6-official-sanctions-lists)

---

Volume figures on this page were measured in our database on 2026-08-19. They are dated snapshots, not live counters.

Full catalogue : https://api.sirenic.eu/