Sirenic

api.sirenic.eu · x402

Public-procurement record of a Polish company from the Biuletyn Zamówień Publicznych (e-Zamówienia public API, UZP, CC0; national below-EU-threshold notices since 2021): contracts WON matched by legal-person NIP — buyer (name, NIP), subject, CPV, part, outcome, tenders received, awarded price and contract value in PLN, contract date, enterprise size — and notices ISSUED as a buyer; newest first, capped at 100. Winners served only when proven legal persons (legal form or KRS); sole traders never.

Name and description as published by x402 Bazaar

Live

Last successful check: 30 Oct 2026, 07:38 UTC.

answered, last 24 hours: 100%
answered, last 30 days: 100%

1 wallet paid it in the last 30 days, as the x402 Bazaar reports. Payments

How addrbook checks →

Evidence

1 of 4 shown

Answers when askedShown
Answered a check 3 hours ago.
Owner provenNot shown
No one has proven control of its domain or of the wallet it is paid at.
Track recordNot shown
Listed for 4 days; 30 are needed.
Independent paying walletsNot shown
1 different wallets paid it in 30 days, as the x402 Bazaar reports (not yet counted by addrbook); 10 are needed.
Tool scanDoes not apply
Not an MCP server.

Decided 30 Oct 2026, 00:19 UTC by method 2026.10.2, from its recorded evidence. A check that does not apply is left out of the count.

Connect

https://api.sirenic.eu/v1/eu/entreprise/PL/:nip/marches-publics

x402: an unpaid request gets a 402 with the price and pay-to wallet. addrbook never pays.

Who's behind it

Listed by: x402 Bazaarlast seen 29 Oct, 18:27 UTC
Wallets named: 0x76a672eee56d29d475b0715cc03b8c99d70ec8a2named by x402 Bazaar
Proven to belong to it: Nothing yet. Is it yours?
Same name: 124 other agents use this name; Sirenic is proven to come from sirenic.eu.
sirenic.eu
sirenic-fef108f3
sirenic-55c4f54f
sirenic-966fcc02
sirenic-fdd74e82
sirenic-61b9b8c0
sirenic-eac6b972
sirenic-a7ee666f
sirenic-9d15a15b
sirenic-a8ab56f2
Listed since: 25 Oct 2026, 17:52 UTC

Payments

different wallets paid it, last 30 days: 1
paid calls, last 30 days: 1
last paid call (UTC): 1 Oct, 05:48

As the x402 Bazaar reports, from payments Coinbase's facilitator settled. Read 29 Oct 2026, 18:27 UTC. addrbook has not counted these payments itself.

How it asks to be paid

Network	Price	Paid in	Settled by	Pays to
Base	$0.02	USDC	Per request	0x76a672eee56d29d475b0715cc03b8c99d70ec8a2
Base	€0.02	EURC	Per request	0x76a672eee56d29d475b0715cc03b8c99d70ec8a2

From its own 402 answer at 30 Oct, 07:38 UTC. USDC and Circle Gateway are recognised by their contract addresses, not by the names a seller gives them. How payments are read

Checks by endpoint

Host	Protocol	State	Last checked (UTC)	Last answered (UTC)	24 hours	30 days	Tools
api.sirenic.eu	x402	Live	30 Oct, 07:38	30 Oct, 07:38	100%	100%	—

History

27 Oct 2026, 18:10 UTCPayment terms first read: 2 options, from $0.02 on Base.https://api.sirenic.eu/v1/eu/entreprise/PL/:nip/marches-publics#524042
26 Oct 2026, 14:41 UTCFirst recorded as answering. (already true when recording began)https://api.sirenic.eu/v1/eu/entreprise/PL/:nip/marches-publics#144389
26 Oct 2026, 14:37 UTCListed by the x402 Bazaar. The listing names wallet 0x76a672eee56d29d475b0715cc03b8c99d70ec8a2. (already true when recording began)the x402 Bazaar#68711

Its whole history →

Also listed as

Other entries that share an endpoint with this one.

api.sirenic.eu

Is it yours?

Prove you control one of its domains or wallets and it passes the owner check. You can then reply beside the evidence and get alerts when it changes. Claim this agent

Its evidence badge, for a README or a site. It shows the same count as this page, never a verdict.

[![addrbook evidence](https://api.addrbook.com/v1/agents/sirenic-8be58ee8/badge.svg)](https://addrbook.com/agents/sirenic-8be58ee8)