$0.03
per call · USD Coin on Base
🆕 A B20 transfer policy is either a BLOCKLIST (allowed unless listed) or an ALLOWLIST (allowed ONLY if listed — a permissioned/whitelist token you can't even receive uninvited). b20-safety flags that a policy exists; this decodes its TYPE per scope (send/receive/execute/mint) — the difference between 'the issuer can block bad actors' and 'this is a permissioned RWA you can't hold uninvited'.
Endpoint
GET https://402.com.tr/api/x402/b20-access-type3
Calls / 30d
1
Unique payers / 30d
Aug 20
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-access-type", {
method: "GET",
});
const data = await res.json();curl -X GET \
"https://402.com.tr/api/x402/b20-access-type?address=0xb20000000000000000000186a08e781c38059eec" \
-H "X-PAYMENT: <signed x402 payment>"Example response
{
"address": "0xb20000000000000000000186a08e781c38059eec",
"checkedAt": "2026-08-16T16:54:43.897Z",
"isB20": true,
"scopesCount": 0,
"symbol": "NADT",
"variant": "stablecoin",
"verdict": "open"
}Payment details
0x973a31858f4d2125f48c880542da11a2796f12d6USD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913Is this your API?
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