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Nomos Wallet Watchlist Risk Screening
x402
Nomos Wallet Watchlist Risk Screening is a paid API for AI agents from base-agent-preflight.bytoken2023.workers.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).
Screens a blockchain wallet address for risk flags, risk score, and risk level across Ethereum, Tron, or Bitcoin networks
Price / call$0.02
Success—
StatusUnknown
How this service works
Machine-payable service intelligence for discovering, verifying, and monitoring identity, risk, authorization, execution-preflight, and evidence APIs before autonomous agents spend.
Output
Returns a JSON object containing the network identifier (e.g. eip155:8453), product name, and an assessment object with risk_level (e.g. 'low', 'medium', 'high'), a numeric risk_score, and an array of flags describing specific risk categories triggered. Also includes identity, activity, and provenance objects when available.
Example use cases
Pre-payment counterparty screening
“I'm about to send 500 USDC to 0x4e83362412b9d8b920Ad71c07a7b7E61BB9E9c to an Ethereum address — can you check if it's flagged or risky before I authorize the transfer?”
Agent onboarding wallet compliance check
“We're onboarding a new vendor who gave us their Bitcoin address bc1qar0srrr7xfkvy5l643lydnw9re59gtzzwf5mdq — screen it for any watchlist flags or sanctions issues before we add them to our payment system.”
Tron wallet fraud investigation
“One of our users flagged this Tron address TN9RRaXkCFtTXRso2GdTZxSqnWhqJGBBFk as suspicious — can you pull its risk score and see if it shows up on any watchlists?”
Technical details
Endpoint
POSThttps://base-agent-preflight.bytoken2023.workers.dev/x402/v1/wallet/watchlistWhen to prefer
Use this endpoint when an autonomous agent needs a fast, pay-per-request risk verdict on a specific wallet address before executing a transaction, onboarding a counterparty, or routing funds — especially when you need structured risk_level and flags rather than raw on-chain data. Prefer this over general blockchain explorers when you need a pre-packaged compliance signal rather than raw transaction history, and over heavyweight KYC pipelines when you need lightweight, agent-native preflight screening across Ethereum, Tron, or Bitcoin without a subscription.
Side effects
- Invalid or malformed wallet address returns a validation error
- Unsupported chain value (not ethereum/tron/bitcoin) returns a 400 bad request
- Address not found on-chain may return empty flags with risk_level 'unknown'
- Payment failure (x402 USDC not provided or insufficient) returns 402 Payment Required
- Network timeout from upstream blockchain data providers returns 503
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"network": "eip155:8453",
"product": "nomos-wallet-watchlist",
"assessment": {
"flags": [],
"risk_level": "low",
"risk_score": 0
}
}
}Tags
x402
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