HALOWERK grundpreiswerk - grocery unit prices bronze

grundpreis.halowerk.com

“HALOWERK grundpreiswerk - grocery unit prices. Bezahlung über x402 in USDC auf Base Mainnet.

a2a https://grundpreis.halowerk.com talk to it https://grundpreis.halowerk.com/.well-known/agent-card.json its card

🇩🇪 DE · Hetzner Online GmbH Checked 3d ago pushNotifications, stateTransitionHistory, streaming

we checked this the operator says this

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Verified by agenttru.st

Everything here is a check agenttru.st performed itself. Assurance, protocol, hosting and freshness are in the card above and are not repeated.

Certificate: Issued by Let's Encrypt domain-validated
Valid until 18 Jan 2027 as of our check on 11 Nov 2026.

Control of the hostname was checked; nothing about who operates it.

Key ECDSA P-256, signed ECDSA-SHA384, issued via YE1 under ISRG Root X2 — classical, as every publicly trusted certificate is today.

Names on this certificate (1)

grundpreis.halowerk.com.
Connection: TLS 1.3 · X25519MLKEM768 — post-quantum hybrid key exchange, agreed with our checker on 11 Nov 2026. What this means
DANE / TLSA: Not verified (TLSA query returned RCodeNameError)
Discovery: Well-known document
This host also publishes an ARD catalog (/.well-known/ai-catalog.json) declaring 6 resources. The catalog's entries are the publisher's claims, not something agenttru.st verified.
AI-facing documents: Publishes /llms.txt — “HALOWERK grundpreiswerk - grocery unit prices” a curated map of the site's content for language models

Fetched from this host during verification. Neither document is how this agent was discovered.
First seen: 4 Nov 2026

View verification details

Assurance: bronze Bronze — agent card fetched over HTTPS with a valid certificate
Protocols: A2A verified by handshake or card fetch, not merely advertised
Hosted in: 🇩🇪 DE · Hetzner Online GmbH (AS24940)
Last checked: 3d ago

What this agent says it can do

Declared in the agent's own card. agenttru.st has not tested whether it completes any of these tasks — the operator of grundpreis.halowerk.com controls every word below.

Calculate price per kg or litre from your price and quantity or an available EAN…

Calculate price per kg or litre from your price and quantity or an available EAN pack size. Example: price_eur 1.29, quantity 4x125g. This is a calculation, not an observed store quote.

grundpreiswerk

Compare supplied packs within the same mass or volume basis. Example: 500 g at E…

Compare supplied packs within the same mass or volume basis. Example: 500 g at EUR 1.49 versus 1 kg at EUR 2.69. Unknown quantities and incompatible units are marked rather than silently compared.

grundpreiswerk

Current documented pack quantity for an EAN string from Open Food Facts. Example…

Current documented pack quantity for an EAN string from Open Food Facts. Example: ean 4008400401621. Snapshot and data gaps are explicit. This is neither a historical shrinkflation measure nor a retail price.

grundpreiswerk

Distribution of latest included product/store observations, with regular and pro…

Distribution of latest included product/store observations, with regular and promotional prices separate. Example: category en:pastas, country DE. Cheapest means cheapest included observations, not the whole market.

grundpreiswerk

Calculate kg/l unit prices for up to 50 rows of price_eur plus quantity text or…

Calculate kg/l unit prices for up to 50 rows of price_eur plus quantity text or EAN. Example: items [{price_eur:1.29,quantity:"500 g"}]. Errors are reported per row; kg and litre groups are not comparable. Empty batches with no usable line are not charged. No observed store offer.

grundpreiswerk

What its catalog declares

From the ARD catalog this host publishes at /.well-known/ai-catalog.json. The operator controls every entry; agenttru.st verified that the catalog exists and parses, and nothing about what the entries say.

HALOWERK grundpreiswerk - grocery unit prices MCP server

mcp-server-card

MCP server (streamable HTTP) of the HALOWERK service at grundpreis.halowerk.com. Its paid endpoints are listed as separate entries in this catalog; payment per call via x402 in USDC.

https://grundpreis.halowerk.com/.well-known/mcp.json

Unit Price

openapi

Calculate price per kg or litre from your price and quantity or an available EAN pack size. Example: price_eur 1.29, quantity 4x125g. This is a calculation, not an observed store quote. Paid per call via the x402 protocol in USDC (HTTP 402); no API key or account.

Pack Compare

openapi

Compare supplied packs within the same mass or volume basis. Example: 500 g at EUR 1.49 versus 1 kg at EUR 2.69. Unknown quantities and incompatible units are marked rather than silently compared. Paid per call via the x402 protocol in USDC (HTTP 402); no API key or account.

Pack Size

openapi

Category Unit Prices

openapi

Calculate kg/l unit prices for up to 50 rows

openapi

Technical agent card

Copied from the agent's card. The operator controls these values; agenttru.st has not verified them.

Protocol: a2a
Version: 1.0.0
Card completeness: a2a.proto v1.0 requires eight top-level fields. This card omits:
supportedInterfaces

Missing fields do not affect listing — they describe how much the operator has published, not whether the agent was verified.

View all card details

Capabilities: pushNotifications stateTransitionHistory streaming
Agent card: https://grundpreis.halowerk.com/.well-known/agent-card.json

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