Sirenic
GET api.sirenic.eu/v1/eu/entreprise/GB/:company_number/beneficiaires-effectifs
Why an agent can trust this route.
Sonar evidence is advisory. Paid delivery is shown as verified only when paid probes are available; otherwise route estimates use the unpaid handshake as a clearly labeled proxy.
Observed outcomes
UK persons with significant control (PSC register) live from Companies House, for KYB and group-structure checks: LEGAL-ENTITY controllers only (corporate entities, legal persons) with natures of control (ownership/voting bands), notification dates and register identification, plus official PSC statements. Natural-person controllers are COUNTED, never named (GDPR, CJEU C-798/24, since 2026-09-19). Ceased PSCs excluded by default (inclure_cesses=true adds them).
Resource: api.sirenic.eu/v1/eu/entreprise/GB/%7Bcompany_number%7D/beneficiaires-effectifs
Network: eip155:8453 · Asset: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 · Pay to: 0x76A672EEe56D29D475b0715cc03B8C99D70EC8A2
Payment methods: — · Last validation: 2026-10-15 11:51:50.708+00
{
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"pathParams": {
"type": "object",
"required": [
"company_number"
],
"properties": {
"company_number": {
"type": "string",
"description": "Companies House company number, leading zeros required (00446915). Unknown number returns 404, payment cancelled."
}
}
},
"queryParams": {
"type": "object",
"required": [],
"properties": {
"inclure_cesses": {
"type": "string",
"description": "Set to \"true\" to add ceased PSCs in `beneficiaires_cesses` (with their cesse_le). Omitted or any other value: ceased PSCs are excluded."
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
},
"paymentRequirements": [
{
"raw": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x76A672EEe56D29D475b0715cc03B8C99D70EC8A2",
"amount": "20000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
},
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0x76A672EEe56D29D475b0715cc03B8C99D70EC8A2",
"scheme": "exact",
"network": "eip155:8453",
"amountAtomic": "20000"
},
{
"raw": {
"asset": "0x60a3E35Cc302bFA44Cb288Bc5a4F316Fdb1adb42",
"extra": {
"name": "EURC",
"version": "2"
},
"payTo": "0x76A672EEe56D29D475b0715cc03B8C99D70EC8A2",
"amount": "20000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
},
"asset": "0x60a3E35Cc302bFA44Cb288Bc5a4F316Fdb1adb42",
"payTo": "0x76A672EEe56D29D475b0715cc03B8C99D70EC8A2",
"scheme": "exact",
"network": "eip155:8453",
"amountAtomic": "20000"
}
]
}Source catalog records are retained separately from live endpoint observations. Sonar score, uptime, and latency are advisory metrics. CDP indexing is not inferred from validation.