Sirenic
L
The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Live 402 challenge
Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.
{
"error": "payment_required",
"price": "$0.02",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x76A672EEe56D29D475b0715cc03B8C99D70EC8A2",
"amount": "20000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.sirenic.eu/v1/eu/entreprise/{pays}/{id}/transactions-dirigeants",
"description": "Director transactions and insider transactions at Belgian and German listed companies — managers transactions (directors' dealings) under MAR Article 19, as notified to the FSMA and BaFin: are the company's managers buying or selling? Issuer-level aggregate over a rolling 12 months — counts, gross buy and sell amounts, net flow, breakdown by declarer category, and the underlying notifications. BE: 10-digit enterprise number. DE: LEI or ISIN. No individual is ever named.",
"maxAmountRequired": "20000",
"maxTimeoutSeconds": 120
},
{
"asset": "0x60a3E35Cc302bFA44Cb288Bc5a4F316Fdb1adb42",
"extra": {
"name": "EURC",
"version": "2"
},
"payTo": "0x76A672EEe56D29D475b0715cc03B8C99D70EC8A2",
"amount": "20000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.sirenic.eu/v1/eu/entreprise/{pays}/{id}/transactions-dirigeants",
"description": "Director transactions and insider transactions at Belgian and German listed companies — managers transactions (directors' dealings) under MAR Article 19, as notified to the FSMA and BaFin: are the company's managers buying or selling? Issuer-level aggregate over a rolling 12 months — counts, gross buy and sell amounts, net flow, breakdown by declarer category, and the underlying notifications. BE: 10-digit enterprise number. DE: LEI or ISIN. No individual is ever named.",
"maxAmountRequired": "20000",
"maxTimeoutSeconds": 120
}
],
"message": "Paid endpoint. Retry with an x402 payment header. Price: $0.02 in USDC (or the same numeric amount in EURC) on Base (mainnet). Paying in EURC requires an explicit client opt-in since @x402/core 2.23 (spendControls.allowedAssets), otherwise your client silently keeps the USDC option. Set allowedAssets[].maxAmountPerPayment as well (integer ATOMIC amount, e.g. \"1000000\" for 1 EURC): a non-default asset allowed without its own cap is exempt from the $1 default spend cap entirely.",
"preview": "https://api.sirenic.eu/preview/entreprise/55203253400646",
"x402Version": 2,
"documentation": "https://api.sirenic.eu/llms.txt"
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
Pay 0.02 USDC on Base to 0x76A6…EC8A2. The signed payment is good for 2 minutes.
- Paid to
- 0x76A6…EC8A2
- USD Coin contract
- 0x8335…02913
- Payment window
- 2 minutes
- As published
- 20000 smallest units
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- 0x76A6…EC8A2
- Token contract
- 0x60a3…adb42
- Payment window
- 2 minutes
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x76A672EEe56D29D475b0715cc03B8C99D70EC8A2",
"amount": "20000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
},
{
"asset": "0x60a3E35Cc302bFA44Cb288Bc5a4F316Fdb1adb42",
"extra": {
"name": "EURC",
"version": "2"
},
"payTo": "0x76A672EEe56D29D475b0715cc03B8C99D70EC8A2",
"amount": "20000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"pathParams": {
"id": "0428750985",
"pays": "BE"
},
"queryParams": {}
},
"output": {
"type": "json",
"example": {
"pays": "BE",
"source": "FSMA — Transactions de dirigeants (art. 19 MAR), licence CC BY 4.0 ; identifiants d'entreprise résolus via GLEIF.",
"synthese": {
"nb_achats": 2,
"nb_autres": 0,
"nb_ventes": 0,
"montant_net_eur": 9765,
"nb_notifications": 2,
"montant_achats_eur": 9765,
"montant_ventes_eur": 0,
"nb_declarants_distincts": 2,
"date_derniere_notification": "2026-08-06",
"nb_notifications_montant_hors_eur": 0
},
"denomination": "UMICORE",
"note_montants": null,
"notifications": [
{
"lieu": "Off exchange",
"devise": "EUR",
"montant": 0,
"quantite": 12500,
"date_publication": "2026-08-06",
"date_transaction": "2026-08-05",
"reference_source": "621888",
"type_transaction": "acquisition",
"categorie_declarant": null
}
],
"ventilation_masquee": "Moins de 3 déclarants distincts sur la période : la ventilation par catégorie est masquée (y compris dans le détail des notifications), elle désignerait une personne identifiable. Les transactions et leurs montants restent servis.",
"par_categorie_declarant": null
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"pathParams": {
"type": "object",
"required": [
"pays",
"id"
],
"properties": {
"id": {
"type": "string",
"description": "BE: 10-digit enterprise number (KBO/BCE), e.g. 0428750985. DE: LEI (20 chars) or ISIN (12 chars), e.g. 529900D6BF99LW9R2E68 — BaFin publishes no register number. An issuer absent from the register returns 404 emetteur_inconnu; a malformed German identifier returns 400."
},
"pays": {
"type": "string",
"description": "ISO-3166 alpha-2 country code. BE (FSMA) or DE (BaFin) ONLY: any other country returns 404 pays_non_couvert."
}
}
},
"queryParams": {
"type": "object",
"required": [],
"properties": {
"depuis": {
"type": "string",
"description": "Optional start date YYYY-MM-DD; omitted = rolling 12 months. A malformed value returns 400 parametre_invalide (payment cancelled)."
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
},
"routeTemplate": "/v1/eu/entreprise/:pays/:id/transactions-dirigeants"
}
}Provenance
- Seen in the source catalog
- 2026-09-24 18:31Z
- Last indexed by Roundhouse
- 2026-09-25 13:30Z
- Last enriched (probe, favicon, geo)
- 2026-09-13 15:46Z
- x402 version
- 2
- Max timeout
- 120s
- Liveness probe
- HTTP 402
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.
GET api.roundhouseai.io/v0/endpoints
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 30 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service Sirenic and tell me whether it is worth paying: what a call costs, whether the endpoint answered when last probed, and what its payment record actually shows. curl -s 'https://api.roundhouseai.io/v0/endpoints?q=Sirenic' curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>' Then call it: read the price from the live 402 at https://api.sirenic.eu/v1/eu/entreprise/:pays/:id/transactions-dirigeants, never from a cached figure, and pay with an x402 client. The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except /v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402, or use an organization key from https://roundhouseai.io/dashboard/team. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.