$0.04
per call · USD Coin on Base
🆕 Live — B20 is Base's native precompile token standard, and unlike ERC-20 a B20 issuer can freeze holders (Policy Registry) and even SEIZE your balance (burnBlocked) at the protocol level. This reads exactly those powers — seizable, freezable, paused, rebase, uncapped-mint — into one hold/caution/avoid verdict, and says whether they are the compliance surface a tokenized stock must carry or a token merely wearing an equity ticker. The first B20-aware safety check on Base.
Endpoint
GET https://402.com.tr/api/x402/b20-safety27
Calls / 30d
1
Unique payers / 30d
Sep 4
Last called
exact
Payment scheme
Call this service
import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";
const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const fetchWithPay = wrapFetchWithPayment(fetch, account);
const res = await fetchWithPay("https://402.com.tr/api/x402/b20-safety", {
method: "GET",
});
const data = await res.json();curl -X GET \
"https://402.com.tr/api/x402/b20-safety?address=0xb20000000000000000000042d5ae64abd03d0dca" \
-H "X-PAYMENT: <signed x402 payment>"Example response
{
"address": "0xb200000000000000000000d9192b6b456483c2e8",
"checkedAt": "2026-09-04T17:35:11.952Z",
"flagsCount": 4,
"isB20": true,
"riskScore": 85,
"symbol": "AMZNc",
"variant": "asset",
"verdict": "avoid"
}Payment details
0x973a31858f4d2125f48c880542da11a2796f12d6USD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913Is this your API?
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