ToolVet
75trust / 100

Base Transfer Search

by Oblique Markets in Search & web

x402 APIPassing, checked 7 h ago

Use when an agent needs base transfer search. Returns Search bounded Base mainnet ERC-20 transfers by address, direction, asset, counterparty, and time window; return structured transfer records. $0.02.

POST
https://api.oblique.markets/api/v1/paid/base-transfer-search
Price
$0.02
per call in USDC
Uptime
100%
last 30 days
Response time
284 ms
621 ms slowest 5%
Last check
Passed
7 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-transfer-search

Each call costs $0.02 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-transfer-search
content-type: application/json

{
  "address": "example",
  "direction": "in"
}

Parameters

ParameterTypeRequiredDescription
addressstringYes
assetstringNo
counterpartystringNo
directionstringYes One of: in, out, both.
from_timestampstringNo
limitintegerNo
to_timestampstringNo

Example response

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

Example response, 33 lines
{
  "address": "0x1111111111111111111111111111111111111111",
  "count": 1,
  "direction": "in",
  "evidence_hash": "sha256:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
  "filters": {
    "asset": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
    "counterparty": null,
    "from_timestamp": "2026-08-10T00:00:00.000Z",
    "to_timestamp": "2026-08-11T00:00:00.000Z"
  },
  "freshness": {
    "age_seconds": 86401,
    "data_as_of": "2026-08-10T12:00:00.000Z",
    "queried_at": "2026-08-11T12:00:01.000Z"
  },
  "limit": 25,
  "transfers": [
    {
      "amount": "1.250000",
      "amount_atomic": "1250000",
      "asset": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
      "block_number": 33712501,
      "counterparty": "0x2222222222222222222222222222222222222222",
      "direction": "in",
      "from": "0x2222222222222222222222222222222222222222",
      "status": "success",
      "timestamp": "2026-08-10T12:00:00.000Z",
      "to": "0x1111111111111111111111111111111111111111",
      "transaction_hash": "0xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
    }
  ]
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.02.

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-transfer-search' \
  -H 'content-type: application/json' \
  --data-raw '{"address":"example","direction":"in"}'

# 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-transfer-search' \
  -H 'content-type: application/json' \
  --data-raw '{"address":"example","direction":"in"}' \
  | 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 $0.02 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.02" });
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 $0.02 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.oblique.markets%2Fapi%2Fv1%2Fpaid%2Fbase-transfer-search&method=POST
const res = await pay("https://api.oblique.markets/api/v1/paid/base-transfer-search", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "address": "example",
    "direction": "in"
  }),
});
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 $0.02 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.02"})
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-transfer-search",
        json={
            "address": "example",
            "direction": "in",
        },
    )
    print(res.status_code, res.text)

Security scan

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