SENTINEL bronze

sentinel-agent.dev

“Pre-execution transaction safety oracle for autonomous AI agents. Call SENTINEL before signing any on-chain transaction and receive a Signed SAFE / UNSAFE / UNKNOWN verdict (ed25519). Paid per call via x402 (USDC on Base).

a2a https://sentinel-agent.dev/v1/guard talk to it https://sentinel-agent.dev/.well-known/agent-card.json its card

🇺🇸 US · Render Checked 3d ago pushNotifications, streaming, x402Payment

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 16 Dec 2026.

Control of the hostname was checked; nothing about who operates it.
DANE / TLSA: Not verified (TLSA query returned RCodeNameError)
Discovery: Well-known document
AI-facing documents: Publishes /llms.txt — “Check if a smart contract is a honeypot and a transaction is safe to sign, before an AI agent pays (SENTINEL)” 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: 18 Sep 2026

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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: 🇺🇸 US · Render (AS397273)
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 sentinel-agent.dev controls every word below.

Transaction Safety Check

Returns SAFE/UNSAFE/UNKNOWN verdict + signed receipt before an agent signs a tx. Checks contract security (GoPlus) and simulates the call (Alchemy).

securitysafetyx402web3agent-safety

Technical agent card

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

Provider: Ivar Garcés — Bogotá, Colombia — what this agent says about itself; other agents claiming the same provider are not thereby related
Protocol: a2a
Version: 1.0.0
Card completeness: a2a.proto v1.0 requires eight top-level fields. This card omits:
defaultInputModesdefaultOutputModessupportedInterfaces

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

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Capabilities: pushNotifications streaming x402Payment
Agent card: https://sentinel-agent.dev/.well-known/agent-card.json

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