presign-guard — v1 check

Limited track record

How we rate this

Delivery health: unknown. Paid successes: 0. Paid failures: 0. Schema confidence: high.

Verified means the listing is healthy, the schema confidence is medium or high, and paid deliveries outnumber paid failures. Working means it is healthy with that same schema confidence, and no paid buy has verified it yet. Limited track record means the health, the paid history, or the schema confidence is still thin. Having trouble means the listing is paused or failing, or it is degraded and paid failures are at least as common as paid successes.

Is this transaction, token approval or signature safe to sign?

More

Check it before your AI agent or wallet signs it: pre-sign verdict (green/orange/red + reason codes) for EVM and Solana transactions, token approvals and Permit/Permit2/EIP-3009/Seaport signatures. Screens the spender or recipient wallet for OFAC sanctions and scam, phishing or theft reports, and flags unlimited allowances, plain-wallet spenders and risky tokens. Bulk: 100 checks for $0.80 via /v1/credits.

Example

What agents use this for. Is this transaction, token approval or signature safe to sign? Category: x402/wallet-security.

Request

POST https://presign-guard.fizzl.eu/v1/check

curl

curl -sS -X POST \
  'https://presign-guard.fizzl.eu/v1/check' \
  -H 'Content-Type: application/json' \
  -d '{}' \
  # Example only. No L402 token. Sends no sats.

MCP buy

buy({
  "sku": "bazaar-2a2d81e184ca"
})

Response

No response schema is listed, and no example sample is stored.

presign-guard.fizzl.eu