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X402 Chain Reads V1 Base Eth Gettransactionbyhash

by Base in Onchain & crypto

x402 APIPassing, checked 1 h ago

Base on-chain read: a transaction by its hash. Base eth_getTransactionByHash. Takes hash (transaction hash, 0x + 64 hex) and returns that Base transaction as the node returns it: from, to, value, gas, gas price, input, nonce, block number and transaction index, or null if the node does not know the hash.

GET
https://api.arysphere.com/v1/ventures/x402_chain_reads_v1/base_eth_gettransactionbyhash
Price
$0.003
per call in USDC
Uptime
100%
last 30 days
Response time
326 ms
894 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_eth_gettransactionbyhash

Each call costs $0.003 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_eth_gettransactionbyhash?hash=0x6ec0cc1f3124bc3b7f1f070d7c73d9ddb8104f79e2602d8cac4dbaa5f4c68ea9

Parameters

ParameterTypeRequiredDescription
hashstringNotransaction hash, 0x + 64 hex

Example response

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

Example response, 28 lines
{
  "chain": "base",
  "method": "eth_getTransactionByHash",
  "ok": true,
  "result": {
    "blockHash": "0xae1326b8087866a6df875ef2388f57a91a16fccc5714e9fa5d66425f7677e7b3",
    "blockNumber": "0x18f1bb8",
    "blockTimestamp": "0x67a89453",
    "depositReceiptVersion": "0x1",
    "from": "0xdeaddeaddeaddeaddeaddeaddeaddeaddead0001",
    "gas": "0xf4240",
    "gasPrice": "0x0",
    "hash": "0x6ec0cc1f3124bc3b7f1f070d7c73d9ddb8104f79e2602d8cac4dbaa5f4c68ea9",
    "input": "0x440a5e20000008dd00101c1200000000000000010000000067a893a300000000014cc642000000000000000000000000000000000000000000000000000000002ef4ebe10000000000000000000000000000000000000000000000000000000000000002b33f335e3b4b340df7b2a9c0ac482043223a17",
    "mint": "0x0",
    "nonce": "0x18f1bb9",
    "r": "0x0",
    "s": "0x0",
    "sourceHash": "0x41af957a0405b7d317013d73271f2f39554782d4967d4ec6fd39a34fd5ba42bb",
    "to": "0x4200000000000000000000000000000000000015",
    "transactionIndex": "0x0",
    "type": "0x7e",
    "v": "0x0",
    "value": "0x0",
    "yParity": "0x0"
  },
  "service": "x402_chain_reads_v1.base_eth_gettransactionbyhash"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.003.

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_eth_gettransactionbyhash?hash=0x6ec0cc1f3124bc3b7f1f070d7c73d9ddb8104f79e2602d8cac4dbaa5f4c68ea9'

# 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_eth_gettransactionbyhash?hash=0x6ec0cc1f3124bc3b7f1f070d7c73d9ddb8104f79e2602d8cac4dbaa5f4c68ea9' \
  | 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 $0.003 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.003" });
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 $0.003 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.arysphere.com%2Fv1%2Fventures%2Fx402_chain_reads_v1%2Fbase_eth_gettransactionbyhash
const res = await pay("https://api.arysphere.com/v1/ventures/x402_chain_reads_v1/base_eth_gettransactionbyhash?hash=0x6ec0cc1f3124bc3b7f1f070d7c73d9ddb8104f79e2602d8cac4dbaa5f4c68ea9");
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 $0.003 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.003"})
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_eth_gettransactionbyhash?hash=0x6ec0cc1f3124bc3b7f1f070d7c73d9ddb8104f79e2602d8cac4dbaa5f4c68ea9")
    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 agoPassed402894 ms$0.003
6 h agoPassed402326 ms$0.003
11 h agoPassed402302 ms$0.003