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SYNTHORA Counterparty Attestation
x402
SYNTHORA Counterparty Attestation is a paid API for AI agents from counterparty-attestation.hergertsynthora.com, paid per call via x402, $0.5/call, status unknown (last checked 2026-09-14).
Checks a named entity or wallet address against safety and compliance lists, returning a signed attestation verdict (CLEAR or flagged) with a list of consulted registries.
Price / call$0.5
Success—
StatusUnknown
How this service works
Aggregate OpenAPI for the SYNTHORA x402 mesh: 121 pay-per-call services, each on its own host under *.hergertsynthora.com, path /service, POST JSON. Per-service OpenAPI: https://<host>/openapi.json. Payment: x402, USDC on Base, payTo 0xEf879BFD6C4AccB8F795136de90246e1EC245e06 (Safe 1.3.0). Full machine catalog: https://catalog.hergertsynthora.com/catalog.json
Output
A JSON object containing an attestation verdict (e.g. CLEAR or flagged), the list of registries consulted, any matches found, a SYNTHORA seal with a SHA-256 hash, and an Ed25519 signature authenticating the result. The response is cryptographically signed by SYNTHORA for auditability.
Example use cases
Pre-payment wallet safety check
“Before my agent sends USDC to 0x4f3eDF983AC636a65a842CE7C78d9aa706d3b113, can you run a counterparty attestation to confirm the wallet is clear of sanctions and blacklists?”
DeFi onboarding compliance screen
“We're about to onboard 'Nova Capital Partners' as a liquidity provider — can you get a signed attestation verdict on their name to see if they appear on any watchlists?”
Autonomous agent transaction guard
“My trading agent is about to execute a swap with counterparty wallet 0x1A2B3C4D5E6F — run a SYNTHORA attestation check on it first and tell me if the verdict comes back CLEAR or flagged.”
Technical details
Endpoint
POSThttps://counterparty-attestation.hergertsynthora.com/serviceWhen to prefer
Use this endpoint when an autonomous agent needs a cryptographically signed, pay-per-call compliance attestation for a named entity or wallet address without requiring API keys or KYC. Ideal for DeFi agents, payment bots, or onboarding flows that need auditability and don't want subscription-based compliance services. Prefer this over traditional KYC/AML APIs when operating in a trustless, crypto-native context where the USDC micro-payment itself serves as authentication.
Side effects
- HTTP 402 with no payment header returns the price/payTo details required to proceed
- Invalid or malformed wallet address may result in an error or inconclusive result
- Unrecognized entity name may return an empty matches array with no definitive verdict
- Network or settlement failure may prevent the payment from being confirmed, blocking the response
- Response signature verification failure indicates a tampered or spoofed response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| name | string | |
| wallet | string |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"niche": "counterparty_attestation",
"result": {
"mode": "attestation",
"sello": {
"firma": "SYNTHORA",
"sha256": "..."
},
"sujeto": "...",
"dictamen": {
"matches": [],
"veredicto": "CLEAR"
},
"atestacion": {
"veredicto": "CLEAR",
"listas_consultadas": []
}
}
}
}Tags
x402
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