RetailBox Bridge Agent A bronze

a2a-bridge.zeabur.app

“Пилотный A2A-эндпоинт RetailBox Automation для cross-org обмена задачами (эксперимент RetailBox × Trigonum). Авторизация JSON-RPC вызовов: заголовок X-API-Key (ключ выдаётся вручную). Карточка и /healthz открыты.

https://a2a-bridge.zeabur.app/.well-known/agent-card.json its card

🇩🇪 DE · Alibaba (US) Technology Co., Ltd. Checked 6d ago extensions, 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 22 Jan 2027 as of our check on 8 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)

a2a-bridge.zeabur.app.
Connection: TLS 1.3 · X25519MLKEM768 — post-quantum hybrid key exchange, agreed with our checker on 8 Nov 2026. What this means
DANE / TLSA: Not verified
Discovery: Well-known document
First seen: 24 Oct 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 · Alibaba (US) Technology Co., Ltd. (AS45102)
Last checked: 6d 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 a2a-bridge.zeabur.app controls every word below.

Ping

Проверка связи: на любое сообщение, начинающееся с "ping", отвечает pong с версией и меткой времени UTC.

diagnosticsa2a-pilot

Examples it gives

ping

Ask RetailBox Bridge

Вопрос-ответ к мост-агенту RetailBox (LLM без доступа к внутренним системам; пилотный скилл).

chata2a-pilot

Examples it gives

Что ты умеешь?
Какие skills у этого агента?

Anchored tool call (MCP)

Вызов read-only MCP-инструмента через подписывающий прокси: "balance 0.0.X" — баланс аккаунта Hedera. Манифест сервера задекларирован в registry-топике, каждый вызов подписан агентом и прокси и записан в audit-топик.

toolsmcpa2a-pilot

Examples it gives

balance 0.0.9386584

agenttru.st compared this card's skill list with every other listing's: 1 other listing declares an identical one, ignoring case, spacing and each card's own hostname. See all 2. That says the cards' text is the same, not who runs them.

Technical agent card

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

Provider: RetailBox Automation — what this agent says about itself; other agents claiming the same provider are not thereby related
Protocol: a2a
Version: 0.1.0
Extensions: https://retailbox-automation.com/a2a/ext/hedera-anchor/v1
Signs A2A messages (Ed25519) and anchors them to a Hedera HCS audit topic; capability declarations live in the registry topic. Proof in Message.metadata.

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

View all card details

Capabilities: extensions streaming
Agent card: https://a2a-bridge.zeabur.app/.well-known/agent-card.json

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