ToolVet
75trust / 100

Validation Attest

by RSoft Bank in Onchain & crypto

x402 APIPassing, checked 1 h ago

ERC-8004 validation attestation: RSoft Bank acts as Validator for an AI agent and vouches for a caller-supplied claim (claim_hash + claim_type). It first runs the agent through KYA and refuses if that fails; on success it signs a JWT attestation and, when the Validation Registry is configured, anchors the attestation hash on Base and returns the transaction hash. Use it when an agent needs a bank-backed, verifiable attestation on its identity, e.g. to satisfy a counterparty's trust policy.

POST
https://7mavs5vu7ggbhtxvbavdgs26qa0cbawg.lambda-url.us-east-1.on.aws/paid/validation-attest
Price
$1.00
per call in USDC
Uptime
100%
last 30 days
Response time
403 ms
1.1 s slowest 5%
Last check
Passed
1 h ago, next any minute now

Run a free test callHow to call it

Reliability

All checks passedSome failedAll failedNot checked

Status and outage history · Atom feed

How to call it

POST https://7mavs5vu7ggbhtxvbavdgs26qa0cbawg.lambda-url.us-east-1.on.aws/paid/validation-attest

Each call costs $1.00 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.

POST https://7mavs5vu7ggbhtxvbavdgs26qa0cbawg.lambda-url.us-east-1.on.aws/paid/validation-attest
content-type: application/json

{
  "agent_id": "0x4cffda4ff0a6c4918609067d2f77aad6dfc9ae9b",
  "claim_hash": "0xabababababababababababababababababababababababababababababababab",
  "claim_type": "generic"
}

Parameters

ParameterTypeRequiredDescription
agent_idstringYesEVM wallet address (0x...)
claim_hashstringYeskeccak256 hash of the claim being attested
claim_typestringNoClaim category, e.g. generic

Example response

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

{
  "attested": true,
  "tx_hash": "0x..."
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $1.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://7mavs5vu7ggbhtxvbavdgs26qa0cbawg.lambda-url.us-east-1.on.aws/paid/validation-attest' \
  -H 'content-type: application/json' \
  --data-raw '{"agent_id":"0x4cffda4ff0a6c4918609067d2f77aad6dfc9ae9b","claim_hash":"0xabababababababababababababababababababababababababababababababab","claim_type":"generic"}'

# 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 - -X POST 'https://7mavs5vu7ggbhtxvbavdgs26qa0cbawg.lambda-url.us-east-1.on.aws/paid/validation-attest' \
  -H 'content-type: application/json' \
  --data-raw '{"agent_id":"0x4cffda4ff0a6c4918609067d2f77aad6dfc9ae9b","claim_hash":"0xabababababababababababababababababababababababababababababababab","claim_type":"generic"}' \
  | 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 $1 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$1" });
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 $1 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2F7mavs5vu7ggbhtxvbavdgs26qa0cbawg.lambda-url.us-east-1.on.aws%2Fpaid%2Fvalidation-attest&method=POST
const res = await pay("https://7mavs5vu7ggbhtxvbavdgs26qa0cbawg.lambda-url.us-east-1.on.aws/paid/validation-attest", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "agent_id": "0x4cffda4ff0a6c4918609067d2f77aad6dfc9ae9b",
    "claim_hash": "0xabababababababababababababababababababababababababababababababab",
    "claim_type": "generic"
  }),
});
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 $1 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$1"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://7mavs5vu7ggbhtxvbavdgs26qa0cbawg.lambda-url.us-east-1.on.aws/paid/validation-attest",
        json={
            "agent_id": "0x4cffda4ff0a6c4918609067d2f77aad6dfc9ae9b",
            "claim_hash": "0xabababababababababababababababababababababababababababababababab",
            "claim_type": "generic",
        },
    )
    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
1 h agoPassed402504 ms$1.00
6 h agoPassed402480 ms$1.00
10 h agoPassed402370 ms$1.00
14 h agoPassed402414 ms$1.00
18 h agoPassed4027.1 s$1.00
Show 10 older checks
22 h agoPassed402399 ms$1.00
27 h agoPassed402400 ms$1.00
31 h agoPassed402461 ms$1.00
35 h agoPassed402427 ms$1.00
39 h agoPassed402457 ms$1.00
42 h agoPassed402447 ms$1.00
46 h agoPassed4021.1 s$1.00
2 days agoPassed402383 ms$1.00
2 days agoPassed402403 ms$1.00
2 days agoPassed402395 ms$1.00