ToolVet
78trust / 100

Base Wallet Profile

by Oblique Markets in Onchain & crypto

x402 APIPassing, checked 3 h ago

Use when an agent needs base wallet profile. Returns Accountless Base mainnet wallet profile with native and ERC-20 balances, bounded transfer activity, counterparties, contracts, freshness metadata and evidence hash. $0.01.

POST
https://api.oblique.markets/api/v1/paid/base-wallet-profile
Price
$0.01
per call in USDC
Uptime
100%
last 30 days
Response time
270 ms
584 ms slowest 5%
Last check
Passed
3 h ago, next any minute now

Run a free test callHow to call it

Reliability

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

How to call it

POST https://api.oblique.markets/api/v1/paid/base-wallet-profile

Each call costs $0.01 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://api.oblique.markets/api/v1/paid/base-wallet-profile
content-type: application/json

{
  "address": "example"
}

Parameters

ParameterTypeRequiredDescription
addressstringYes
assetstringNoOptional native/base/eth or ERC-20 contract address
chainstringNo One of: base, base-mainnet, eip155:8453.
include_counterpartiesbooleanNo
lookback_blocksintegerNo

Example response

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

Example response, 40 lines
{
  "activity": {
    "complete_for": "all_discovered_erc20_transfers",
    "first_block": 33700001,
    "last_block": 33712501,
    "outgoing_transaction_count": 42,
    "transfer_log_count": 18
  },
  "address": "0x4200000000000000000000000000000000000006",
  "chain": "base",
  "chain_id": 8453,
  "contracts": [
    "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
  ],
  "counterparties": [
    {
      "counterparty": "0x1111111111111111111111111111111111111111",
      "transfers": 4
    }
  ],
  "evidence_hash": "sha256:3b7b2b5f3a0f8ef0d6b3c77e4a2d6cfb0c7f8b5d6f6e2b9a3d4c5e6f708192a3b",
  "freshness": {
    "latest_block": 33712501,
    "lookback_blocks": 10000,
    "observed_at": "2026-08-21T12:00:00.000Z",
    "rpc_source": "public_base_rpc"
  },
  "native": {
    "balance_eth": "0.125",
    "balance_wei": "125000000000000000"
  },
  "tokens": [
    {
      "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "balance": "1523.400000",
      "balance_raw": "1523400000",
      "decimals": 6
    }
  ]
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.01.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://api.oblique.markets/api/v1/paid/base-wallet-profile' \
  -H 'content-type: application/json' \
  --data-raw '{"address":"example"}'

# 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://api.oblique.markets/api/v1/paid/base-wallet-profile' \
  -H 'content-type: application/json' \
  --data-raw '{"address":"example"}' \
  | 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 $0.01 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.01" });
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 $0.01 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.oblique.markets%2Fapi%2Fv1%2Fpaid%2Fbase-wallet-profile&method=POST
const res = await pay("https://api.oblique.markets/api/v1/paid/base-wallet-profile", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "address": "example"
  }),
});
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 $0.01 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.01"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://api.oblique.markets/api/v1/paid/base-wallet-profile",
        json={
            "address": "example",
        },
    )
    print(res.status_code, res.text)

Security scan

No findings

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Recent checks

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3 h agoPassed402321 ms$0.01
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