Johto Wallet Risk Screener

x402

Johto Wallet Risk Screener is a paid API for AI agents from johto-x402-api.johtodata.workers.dev, paid per call via x402, $0.025/call, status unknown (last checked 2026-10-28).

Screens an EVM wallet address against the OFAC SDN sanctions list and ScamSniffer phishing address list, returning a risk score, verdict, and flag details.

Price / call$0.025

Seller volume →—

Success—

StatusUnknown

How this service works

Valuable data. Quality leads. Paid per call in USDC on Base via x402. Not charged if the fetch fails or nothing matches. Prices per call (USDC): /v1/jp-invoice-check $0.002; /v1/sec-13f $0.003; /v1/sec-8k $0.003; /v1/sanctions-screen $0.0025; /v1/tenders $0.011; /v1/uk-tenders $0.003; /v1/fr-tenders $0.006; /v1/au-contracts $0.0035; /v1/wallet-risk $0.0025; /v1/kyb $0.0029; /v1/read $0.0019; /v1/crawl $0.0045; /v1/jobs $0.01; /v1/domain-profile $0.003.

Output

Returns a JSON object with: a string verdict (CLEAR or flagged status), integer riskScore (0–100), boolean ofacSanctioned, boolean scamSnifferListed, an array of flags with details, a human-readable summary and flagsText, snapshot dates for each list checked (OFAC SDN, ScamSniffer), the checkedAt timestamp, addressType, and a disclaimer. Also includes rows count (1 if found).

Example use cases

Pre-payment compliance check

“Before I send USDC to 0xAbCd1234abcd1234abcd1234abcd1234abcd1234, can you run a quick sanctions and scam check on that wallet so I know it's safe to transact with?”

DeFi protocol counterparty screening

“I need to screen the wallet 0x7a250d5630b4cf539739df2c5dacb4c659f2488d — is it on the OFAC SDN list or any known phishing blacklists? Give me the verdict and any flags.”

Automated KYB wallet verification

“As part of our onboarding flow, check wallet address 0x3fC91A3afd70395Cd496C647d5a6CC9D4B2b7FAD against sanctions and scam databases and tell me if it's clear or flagged.”

Technical details

Endpoint

GEThttps://johto-x402-api.johtodata.workers.dev/v1/wallet-risk?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need a fast, pay-per-use OFAC SDN and ScamSniffer dual-list wallet screening without a subscription — particularly suited for AI agents doing on-demand compliance checks before crypto transactions. Prefer it over subscription-based AML APIs when call volume is low or unpredictable, and when you want to avoid charges on failed lookups. At $0.0025 per call it is cost-effective for high-volume automated screening pipelines too.

Side effects

Invalid address format (not matching ^0x[0-9a-fA-F]{40}$) returns a validation error and no charge
Address not found in any list returns CLEAR verdict with riskScore 0 and empty flags
Upstream list fetch failure may cause partial or stale results
Payment failure via x402 results in 402 response and no data returned
Network timeout from Cloudflare Worker may return 5xx error

Input

Schema · Request body

Field	Type	Description
inputrequired	object
output	object

Output

Schema · Response

{
  "type": "json",
  "example": {
    "data": {
      "flags": [],
      "address": "0x28c6c06298d514db089934071355e5743bf21d60",
      "summary": "CLEAR: 0x28c6c062… not on the OFAC SDN list, not on the ScamSniffer phishing address list (snapshots 2026-10-21 / 2026-10-22).",
      "verdict": "CLEAR",
      "checkedAt": "2026-10-22T12:00:00.000Z",
      "flagsText": "",
      "listsAsOf": {
        "ofacSdn": {
          "asOf": "2026-10-21",
          "name": "OFAC SDN list",
          "source": "https://www.treasury.gov/ofac/downloads/sdn.xml",
          "fetchedAt": "2026-10-22T11:27:12Z"
        },
        "scamSniffer": {
          "asOf": "2026-10-22",
          "name": "ScamSniffer phishing address list",
          "note": "ScamSniffer publishes this list with a 7-day delay.",
          "source": "https://github.com/scamsniffer/scam-database/blob/main/blacklist/all.json",
          "license": "GPL-3.0",
          "fetchedAt": "2026-10-22T11:27:23Z"
        }
      },
      "riskScore": 0,
      "disclaimer": "A screening aid, not legal advice. CLEAR only means the address is not on these two lists as of the snapshot dates. Verify OFAC matches with OFAC Sanctions List Search.",
      "addressType": "evm",
      "ofacMatches": [],
      "ofacListDate": "2026-10-21",
      "ofacListMode": "snapshot",
      "ofacSanctioned": false,
      "scamSnifferListed": false,
      "scamSnifferChecked": true
    },
    "rows": 1
  }
}

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