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X402 Chain Reads V1 Base Reads Bundle

by Base Reads Bundle in Onchain & crypto

x402 APIPassing, checked 1 h ago

Base bundle: several reads in one paid call. Returns base_eth_getbalance and network_info_summary results in one paid call, keyed by part name. Returns: each named part service's own result, in one paid call, keyed by the part's name -- exactly what each part returns when bought alone; the call succeeds only when every part answers. It takes the union of the parts' query parameters.

GET
https://api.arysphere.com/v1/ventures/x402_chain_reads_v1/base_reads_bundle
Price
$0.008
per call in USDC
Uptime
100%
last 30 days
Response time
324 ms
885 ms 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 · Watch with other listings

How to call it

GET https://api.arysphere.com/v1/ventures/x402_chain_reads_v1/base_reads_bundle

Each call costs $0.008 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://api.arysphere.com/v1/ventures/x402_chain_reads_v1/base_reads_bundle?address=0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045

Parameters

ParameterTypeRequiredDescription
addressstringNo0x + 40 hex

Example response

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

Example response, 35 lines
{
  "ok": true,
  "parts": {
    "base_eth_getbalance": {
      "chain": "base",
      "hex": "0x0",
      "method": "eth_getBalance",
      "ok": true,
      "result": 0,
      "service": "x402_chain_reads_v1.base_eth_getbalance"
    },
    "network_info_summary": {
      "chain": "base",
      "hex": {
        "eth_blockNumber": "0x3245954",
        "eth_chainId": "0x2105",
        "eth_gasPrice": "0x5b8d80"
      },
      "method": "summary",
      "ok": true,
      "result": {
        "base_fee_per_gas_wei": 5000000,
        "block_gas_limit": 400000000,
        "block_gas_used": 33899437,
        "block_number": 52713812,
        "block_timestamp": 1792216971,
        "block_transactions": 190,
        "chain_id": 8453,
        "gas_price_wei": 6000000
      },
      "service": "x402_chain_reads_v1.network_info_summary"
    }
  },
  "service": "x402_chain_reads_v1.base_reads_bundle"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.008.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://api.arysphere.com/v1/ventures/x402_chain_reads_v1/base_reads_bundle?address=0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045'

# 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://api.arysphere.com/v1/ventures/x402_chain_reads_v1/base_reads_bundle?address=0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045' \
  | 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 $0.008 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.008" });
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 $0.008 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.arysphere.com%2Fv1%2Fventures%2Fx402_chain_reads_v1%2Fbase_reads_bundle
const res = await pay("https://api.arysphere.com/v1/ventures/x402_chain_reads_v1/base_reads_bundle?address=0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045");
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 $0.008 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.008"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://api.arysphere.com/v1/ventures/x402_chain_reads_v1/base_reads_bundle?address=0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045")
    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 agoPassed402324 ms$0.008
6 h agoPassed402885 ms$0.008
11 h agoPassed402306 ms$0.008