ToolVet
72trust / 100

B20 Dossier

by B20 Due-Diligence Dossier in Onchain & crypto

x402 APIPassing, checked 6 h ago

🆕 The premium tier of the B20 suite — no ERC-20 tool can produce it. Composes the full B20 picture: seize/freeze/pause/mint powers, WHO holds them (admin renounced?), allowlist-vs-blocklist access model, supply-cap dilution headroom, metadata mutability, and ACTUAL seizure history (burnBlocked) — then AI writes an institutional due-diligence verdict: issuer-control score, seizure risk (enforced/armed/none), red flags, and a hold/avoid recommendation.

GET
https://402.com.tr/api/x402/b20-dossier
Price
$0.75
per call in USDC
Uptime
100%
last 30 days
Response time
492 ms
673 ms slowest 5%
Last check
Passed
6 h ago, next in 57 min

Run a free test callHow to call it

Reliability

All checks passedSome failedAll failedNot checked

Status and outage history · Atom feed · Watch with other listings

How to call it

GET https://402.com.tr/api/x402/b20-dossier

Each call costs $0.75 in USDC on Base, paid with the request over x402.

Run a free test callOne unpaid request, the way an agent sends it. You see the payment challenge it gets back. Nothing is charged.

Example request

From the listing.

GET https://402.com.tr/api/x402/b20-dossier?address=0xb20000000000000000000042d5ae64abd03d0dca

Parameters

ParameterTypeRequiredDescription
addressstringYesB20 token address

Example response

The provider's example. We can't check it without paying.

{
  "address": "0xb20000000000000000000042d5ae64abd03d0dca",
  "degraded": false,
  "generatedAt": "2026-10-06T03:01:09.340Z",
  "isB20": true,
  "issuerControlScore": 15,
  "model": "claude-haiku-4-5",
  "seizureRisk": "enforced",
  "verdict": "avoid"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.75.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://402.com.tr/api/x402/b20-dossier?address=0xb20000000000000000000042d5ae64abd03d0dca'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - 'https://402.com.tr/api/x402/b20-dossier?address=0xb20000000000000000000042d5ae64abd03d0dca' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode
JavaScript: pay and call
// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.75 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.75" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.75 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2F402.com.tr%2Fapi%2Fx402%2Fb20-dossier
const res = await pay("https://402.com.tr/api/x402/b20-dossier?address=0xb20000000000000000000042d5ae64abd03d0dca");
console.log(res.status, await res.text());
Python: pay and call
# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.75 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.75"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://402.com.tr/api/x402/b20-dossier?address=0xb20000000000000000000042d5ae64abd03d0dca")
    print(res.status_code, res.text)

Security scan

No findings

We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTimePrice
6 h agoPassed402356 ms$0.75
15 h agoPassed402602 ms$0.75
26 h agoPassed402607 ms$0.75
35 h agoPassed402514 ms$0.75
39 h agoPassed402556 ms$0.75
Show 10 older checks
44 h agoPassed402600 ms$0.75
2 days agoPassed402457 ms$0.75
2 days agoPassed402505 ms$0.75
2 days agoPassed402673 ms$0.75
3 days agoPassed402500 ms$0.75
3 days agoPassed402441 ms$0.75
3 days agoPassed402484 ms$0.75
3 days agoPassed402593 ms$0.75
3 days agoPassed402509 ms$0.75
3 days agoPassed402522 ms$0.75