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SYNTHORA Contract Guard – Pre-Trade Smart Contract Safety Scanner
x402
SYNTHORA Contract Guard – Pre-Trade Smart Contract Safety Scanner is a paid API for AI agents from pay.hergertsynthora.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Performs a pre-swap safety scan on a smart contract or x402 endpoint, detecting honeypots, rug-pulls, hidden mints, transfer taxes, and admin key centralization risks on Base, returning an Ed25519-signed risk verdict.
Price / call$0.01
Success—
StatusUnknown
How this service works
306 M2M AI services. Pay per call in USDC on Base. No subscription. No API key needed. Browse, pay, consume.
Output
Returns a JSON object with ok status, niche identifier ('paytodefense'), a result object containing the full risk assessment (honeypot verdict, rug-pull flag, hidden-mint detection, transfer tax/blacklist status, admin key centralization audit, overall risk score), and a receipt with Ed25519 signature and sha256 data provenance from on-chain reads.
Example use cases
Example prompt
“Before you swap any USDC for this token at contract 0xABC...123 on Base, run a SYNTHORA Contract Guard pre-trade scan on it — check for honeypot signatures, rug-pull risk, hidden mints, transfer tax blacklist, and admin key centralization, and give me the signed risk verdict before we proceed.”
Technical details
Endpoint
POSThttps://pay.hergertsynthora.com/preflightWhen to prefer
Use this endpoint immediately before any agent-initiated token swap, DeFi trade, or x402 payment on Base to get a deterministic, cryptographically signed safety verdict. Prefer this over manual contract inspection when you need a fast, auditable, multi-dimensional risk check (honeypot + rug-pull + hidden mint + tax + admin keys) in a single call with full data provenance.
Side effects
- Contract address not found on Base – returns unknown verdict
- Target x402 endpoint is down – returns 'down' status in verdict
- PayTo address has changed – returns 'changed' verdict with details
- Malformed input URL or address – returns validation error
- On-chain read failure – incomplete provenance, reduced confidence result
- Payment not received ($0.01 USDC required) – 402 Payment Required response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | string | x402 PayTo Pre-Flight: synchronous verify-before-pay. Check a target x402 endpoint/payTo is alive and unchanged JUST before paying, to avoid sending USDC to a dead/changed/hijacked payTo. POST {input endpoint_url, expected_payTo}. Ed25519-signed verdict (safe/changed/down/unknown). Data: live x402 registry. |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"niche": "paytodefense",
"result": {},
"receipt": {}
}
}Tags
x402
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