Roundhouse AI

Sirenic

L

OtherLiveeip155:8453Exactvia cdp
https://api.sirenic.eu/v1/eu/entreprise/PL/:krs/evenements
PolandKrsCompany-eventsRegistry-changesMonitoring
Calls · 30d
5↓ 4.8%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 30 snapshots so far.
$121.77
Verified settled volume
1,928 settlements proven x402 by their on-chain EIP-3009 marker.
$0.020
Listed price
As published in the catalog. Always read the live 402 before paying.
5
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-09-04 12:32Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x76A672EEe56D29D475b0715cc03B8C99D70EC8A2

The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider

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/PL/{krs}/evenements",
      "description": "Polish company registry EVENTS from the official KRS daily bulletin (Ministry of Justice) — company monitoring for Poland. Query: /v1/eu/entreprise/PL/0000006865/evenements (KRS number). Liquidation, bankruptcy, restructuring, mergers, suspension/resumption, dissolution, tax arrears, enforcement, accounts filings, name/seat/capital changes, strike-off — each typed from a CLOSED list, dated, traced to its section, in a gap-free window. GDPR by design: no officer, no PESEL, no register free text.",
      "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/PL/{krs}/evenements",
      "description": "Polish company registry EVENTS from the official KRS daily bulletin (Ministry of Justice) — company monitoring for Poland. Query: /v1/eu/entreprise/PL/0000006865/evenements (KRS number). Liquidation, bankruptcy, restructuring, mergers, suspension/resumption, dissolution, tax arrears, enforcement, accounts filings, name/seat/capital changes, strike-off — each typed from a CLOSED list, dated, traced to its section, in a gap-free window. GDPR by design: no officer, no PESEL, no register free text.",
      "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.

0.02USDC≈ $0.02 USD
on Base · exact scheme

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
20000units
on Base · exact scheme

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": {
          "krs": "0000006865"
        },
        "queryParams": {}
      },
      "output": {
        "type": "json",
        "example": {
          "krs": "0000006865",
          "pays": "PL",
          "source": "Krajowy Rejestr Sądowy (KRS) — Ministerstwo Sprawiedliwości, API ouverte api-krs.ms.gov.pl (Biuletyn quotidien + OdpisAktualny)",
          "licence": "Données publiques du Krajowy Rejestr Sądowy (Ministerstwo Sprawiedliwości, api-krs.ms.gov.pl), réutilisation libre",
          "existence": {
            "verifiee": false,
            "explication": "Existence NON vérifiée : cette route ne lit que les journées du Biuletyn, et ce numéro n'y a jamais figuré pendant la fenêtre. `aucun_evenement: true` signifie « aucun changement publié pendant la fenêtre » — PAS « société existante restée calme » : un numéro inexistant donne exactement la même réponse. Pour trancher l'existence, appeler la fiche d'identité LIVE (elle rend 404 si le KRS n'existe pas). / Existence NOT verified: this route only reads the daily bulletin and this number never appeared in it during the window; an unknown number yields the very same answer. Use the live identity endpoint to settle existence (it returns 404 when the KRS does not exist).",
            "route_identite": "/v1/eu/entreprise/PL/0000006865"
          },
          "evenements": [],
          "observation": {
            "depuis": "2026-07-01",
            "jusqu_au": "2026-07-28"
          },
          "retard_jours": 1,
          "aucun_evenement": true,
          "nombre_evenements": 0,
          "derniere_observation": 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": [
                "krs"
              ],
              "properties": {
                "krs": {
                  "type": "string",
                  "description": "10-digit KRS number, leading zeros required (not the NIP, not the REGON), e.g. 0000006865"
                }
              }
            },
            "queryParams": {
              "type": "object",
              "properties": {}
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    },
    "routeTemplate": "/v1/eu/entreprise/PL/:krs/evenements"
  }
}

Provenance

Seen in the source catalog
2026-09-04 12:32Z
Last indexed by Roundhouse
2026-09-24 14:20Z
Last enriched (probe, favicon, geo)
2026-09-13 15:46Z
x402 version
2
Max timeout
120s
Liveness probe
HTTP 402
Report

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.

Open skill.md
Show 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/PL/:krs/evenements, 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.