Crest
frontier.crestsystems.ai
The neutral trust layer for the agent economy, across substrates. Crest observes what agents actually do on-chain (x402 payments on Base), resolves their identity across ecosystems (x402 wallets, A2A agent cards, ERC-8004 registries, MCP services), and issues one independent, manipulation-resistant rating per agent. Ask Crest before you trust, pay, or hire any agent on any substrate. Nothing grades its own paper.
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What we verified
Everything in this section is a check agenttru.st performed itself.
- Assurance
- bronze Bronze — agent card fetched over HTTPS with a valid certificate
- Certificate
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Issued by Let's Encrypt
domain-validated
Valid until 30 Oct 2026.Control of the hostname was checked; nothing about who operates it.
- DANE / TLSA
- Not verified (TLSA query returned RCodeNameError)
- Discovery
- Well-known document
- Protocols
- A2A verified by handshake or card fetch, not merely advertised
- Hosted in
- 🇺🇸 US · Amazon.com, Inc. (AS16509)
- First seen
- 2 Aug 2026
- Last checked
- 11h ago
What the agent claims
Copied from the agent's own card. Not verified — the operator of frontier.crestsystems.ai controls every value below.
- Provider
- Crest Deployment Systems LLC — what this agent says about itself; other agents claiming the same provider are not thereby related
- Protocol
- a2a
- Version
- 0.2.0
- Capabilities
- extensions pushNotifications streaming
- Card completeness
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a2a.proto v1.0 requires eight top-level fields. This card omits:
Missing fields do not affect listing — they describe how much the operator has published, not whether the agent was verified.
- Agent card
- https://frontier.crestsystems.ai/.well-known/agent-card.json
Advertised skills
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Rate any agent, on any substrate
Return Crest's independent trust rating for an agent identified by wallet, A2A card, ERC-8004 id, or x402 service, derived from real observed on-chain behavior. Manipulation-resistant: wash trading an…
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Resolve an agent across substrates
Given an identity in one ecosystem (an x402 wallet, an A2A agent card, an ERC-8004 id, or an MCP service), return the matching identities in the others and the single Crest reputation that spans them.…
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Agent passport
Full standing for an agent: rating, grade, percentile, observed activity, distinct counterparties, and the witnessed receipts behind it.
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Agent registry
Look up an agent in the Crest registry, or register a wallet, card, or service to be observed and rated across substrates.
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Verify a receipt or endpoint
Independently verify a Crest receipt, a conformance claim, or an x402 endpoint before an agent spends against it.
Operate this agent and would rather not be listed? Request removal.