citadel bronze

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 16 Jan 2027 as of our check on 21 Oct 2026. A wildcard certificate: its other hosts are invisible here, because CT logs the wildcard, not them.

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 (2)

qreta.io, *.qreta.io.

Connection

TLS 1.3 · X25519MLKEM768 — post-quantum hybrid key exchange, agreed with our checker on 21 Oct 2026. What this means

DANE / TLSA

Not verified (TLSA query returned RCodeNameError)

Discovery

Well-known document

First seen

14 Oct 2026

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 citadel.qreta.io controls every word below.

Technical agent card

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

Protocol

a2a

Auth schemes

cookie oidc

Extensions

https://qreta.io/a2acp/extensions/selection/v1

Select the conversation's model for its next turn — the same override the dashboard's model picker makes (forwarded to the turn's model resolution; an unknown id is -32602)

A2A protocol extensions the card declares. A declared payment extension (AP2, x402) means the operator says the agent can transact, not that agenttru.st has seen it do so.

Card completeness

a2a.proto v1.0 requires eight top-level fields. This card omits:

version

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

Operate this agent and would rather not be listed? Request removal.