GST Cranes Public Marketplace Agent bronze

preview.gstcranes.com

“Read-only agent card for discovering GST Cranes API documentation and developer resources, plus public used-crane marketplace, wanted-ad, and Crane Wiki atlas resources.

a2a https://gstcranes.com/ask talk to it https://preview.gstcranes.com/.well-known/agent-card.json its card

Checked 2d 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 Google Trust Services domain-validated
Valid until 22 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-SHA256, issued via WE1 under GTS Root R4 — classical, as every publicly trusted certificate is today.

Names on this certificate (1)

preview.gstcranes.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 37 resources. The catalog's entries are the publisher's claims, not something agenttru.st verified.
AI use policy: Search: yesAI input: yesAI training: no

What this site's robots.txt says about how AI may use its content. Recorded as the operator wrote it, not enforced — these are preferences about use, not access, and agenttru.st only reads the agent's own discovery documents.
AI-facing documents: Publishes /llms.txt — “GST Cranes” a curated map of the site's content for language models

Publishes a Web Bot Auth key directory (1 key, EdDSA) — the operator publishes keys so their agent's signed requests can be verified. agenttru.st recorded that the directory exists; it has not verified a signature.

Fetched from this host during verification. Neither document is how this agent was discovered.
First seen: 11 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: ? Unknown · Cloudflare, Inc. (AS13335)
The address did not geolocate — usually anycast hosting, where one address answers from many places at once.
Last checked: 2d 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 preview.gstcranes.com controls every word below.

Public crane marketplace discovery

Find public used-crane marketplace listings, buyer wanted ads, model hubs, and Crane Wiki company records.

used-cranesmarketplacecrane-wikiwanted-ads

Examples it gives

Find companies with Liebherr LTM 1750 records
Show public resources for buying a used crawler crane

agenttru.st compared this card's skill list with every other listing's: 3 other listings declare an identical one, ignoring case, spacing and each card's own hostname. See all 4. That says the cards' text is the same, not who runs them.

What kind of listing

Test or staging name: Its hostname carries the label “preview”, a name commonly given to test and staging sites.

Checked by agenttru.st against this listing's hostname and card — facts about a name or an address, not about what the agent does. How kinds are decided.

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.

GST Cranes public company OpenAPI

openapi

Public OpenAPI schema for company and Crane Wiki discovery endpoints.

https://gstcranes.com/.well-known/openapi.json

GST Cranes API catalog linkset

linkset

Linkset pointing agents to API, MCP, A2A, skill, auth, and pricing resources.

https://gstcranes.com/.well-known/api-catalog

GST Cranes Web Bot Auth HTTP message signatures directory

http-message-signatures-directory

Standards-compliant HTTP Message Signatures key directory for Web Bot Auth discovery. GST Cranes currently publishes no active outbound signer keys.

https://gstcranes.com/.well-known/http-message-signatures-directory

GST Cranes read-only sandbox first API call

json

Zero-auth sandbox environment for a first public API call with no account data, credit spend, or mutation.

https://gstcranes.com/api/sandbox/first-call

GST Cranes read-only sandbox

text/html

Crawlable zero-auth sandbox surface for the first GST Cranes public API call, with no account data, credit spend, or mutation.

https://gstcranes.com/sandbox

GST Cranes public discovery MCP server

mcp-server-card

Read-only MCP server card for public marketplace, wanted-ad, and atlas discovery.

https://gstcranes.com/.well-known/mcp/server-card.json

And 31 more entries in the catalog, not shown here.

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: complete all eight fields required by a2a.proto v1.0

View all card details

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

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