x402 Agent Pre-Trade Safety
agentguard.hergertsynthora.com
· HERGERT SYNTHORA
ONE signed call returns a pre-execution risk verdict (SAFE/CAUTION/BLOCK) for payment and DeFi agents: OFAC SDN/EU/UN/UK sanctions screening, stablecoin peg deviation and counterparty on-chain signal, Ed25519-signed. Scoring only, never executes trades or moves funds.
agentguard.hergertsynthora.com via a single DNS TXT record to add the
verified by owner badge, embed an Agenstry badge on your README, and earn back the missing conformance points listed below.
D
Conformance score: 53/100
D-grade: significant issues, auth-gated, partially broken, or stale.
click to expand breakdown ▾
click to collapse breakdown ▴
agent-card.json changed within the last 7 days. We track these so downstream callers can react.
Activity (audit trail)
last 24h · 3 calls 100.0% success Public aggregate · no PII recordedRecent events (last 20)
| When | Event | Method | Status | Latency |
|---|---|---|---|---|
| 2026-07-20T19:49:39 | search_impression | — |
200 ok | — |
| 2026-07-20T19:47:02 | search_impression | — |
200 ok | — |
| 2026-07-20T12:44:32 | search_impression | — |
200 ok | — |
Card history
1 snapshot Every change toagent-card.json
| Captured | Hash | |
|---|---|---|
| 2026-07-20 11:22:30 current | fc1f2e49765d… |
view → |
Endpoints
0x10800a5a5b9d72251566ec651e862a8b4b427de0 · basescan ↗
| Agent card | https://agentguard.hergertsynthora.com/.well-known/agent-card.json |
| Provider | https://hergertsynthora.com |
| Docs | https://agentguard.hergertsynthora.com/openapi.json |
Skills · 1 declared · mapped to canonical taxonomy
POST {"address":"0x...","asset":"USDC"}. Returns a signed SAFE/CAUTION/BLOCK verdict combining sanctions screening, peg deviation in bps and counterparty on-cha…
Health · last 5 probes
Who's calling this agent 30d
3 interactions captured (impressions + lookups + A2A calls)
rest
3
Public teaser: top-3 per dimension only. Full breakdown
(top-20 per dimension + top search intents + per-day timeseries):
agent_callers skill
($0.05/call, $0 on
Enterprise).
Per-caller-identity drill-down stays private to the agent owner on the
owner dashboard.
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[](https://agenstry.com/agents/agentguard.hergertsynthora.com) [](https://agenstry.com/agents/agentguard.hergertsynthora.com) [](https://agenstry.com/agents/agentguard.hergertsynthora.com) [](https://agenstry.com/agents/agentguard.hergertsynthora.com)
Audit-grade evidence bundle
JSON snapshot for vendor-review files. Add ?sign=true for a JWS-signed envelope verifiable against
our JWKS. See the methodology.
Raw agent card JSON
{
"protocolVersion": "0.3.0",
"name": "x402 Agent Pre-Trade Safety",
"description": "ONE signed call returns a pre-execution risk verdict (SAFE/CAUTION/BLOCK) for payment and DeFi agents: OFAC SDN/EU/UN/UK sanctions screening, stablecoin peg deviation and counterparty on-chain signal, Ed25519-signed. Scoring only, never executes trades or moves funds.",
"url": "https://agentguard.hergertsynthora.com/service",
"preferredTransport": "HTTP+JSON",
"version": "1.0.0",
"documentationUrl": "https://agentguard.hergertsynthora.com/openapi.json",
"provider": {
"organization": "HERGERT SYNTHORA",
"url": "https://hergertsynthora.com"
},
"capabilities": {
"streaming": false,
"pushNotifications": false,
"stateTransitionHistory": false
},
"defaultInputModes": [
"application/json"
],
"defaultOutputModes": [
"application/json"
],
"skills": [
{
"id": "agent_pretrade_safety",
"name": "Pre-trade risk verdict SAFE/CAUTION/BLOCK",
"description": "POST {\"address\":\"0x...\",\"asset\":\"USDC\"}. Returns a signed SAFE/CAUTION/BLOCK verdict combining sanctions screening, peg deviation in bps and counterparty on-chain signal.",
"tags": [
"crypto",
"pretrade",
"safety",
"sanctions",
"ofac",
"stablecoin-peg",
"x402"
],
"inputModes": [
"application/json"
],
"outputModes": [
"application/json"
],
"examples": [
"POST https://agentguard.hergertsynthora.com/service with body {\"address\":\"0x...\"}"
]
}
],
"securitySchemes": {
"x402": {
"type": "http",
"scheme": "x402",
"description": "HTTP 402 micropayment. 0.02 USDC on Base (eip155:8453)."
}
},
"security": [
{
"x402": []
}
],
"x402": {
"network": "eip155:8453",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"assetSymbol": "USDC",
"amount": "20000",
"priceUsd": "0.02",
"payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0",
"resource": "https://agentguard.hergertsynthora.com/service"
}
}