77trust / 100

Chain Receipt

by Soren in Onchain & crypto

x402 APIPassing, checked 48 min ago

Read whether a transaction SUCCEEDED — a tx can be in a block and still have failed; status is the truth, live from Base mainnet, for a fraction of a cent. No API key, no account — a wallet is the only requirement, and you are charged only if the read succeeds. Plain unsigned data; the attested version of chain reads is /v1/oracle/onchain. Answers are read at the moment of the call and stamped with the block they came from where applicable.

GET
https://soren.com/v1/chain/receipt
Price
$0.003
per call in USDC
Uptime
100%
last 30 days
Response time
304 ms
409 ms slowest 5%
Last check
Passed
48 min 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

GET https://soren.com/v1/chain/receipt

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://soren.com/v1/chain/receipt?hash=0x731e0553663993c778025a6df7ce5a7e8b0b8f0b2a2ced3782802c54d230b757

Parameters

ParameterTypeRequiredDescription
hashstringYesThe 32-byte transaction hash.

Example response

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

{
  "block": "<int>",
  "found": true,
  "gas_used": "<int>",
  "hash": "<0x…>",
  "logs_emitted": "<int>",
  "succeeded": true
}

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://soren.com/v1/chain/receipt?hash=0x731e0553663993c778025a6df7ce5a7e8b0b8f0b2a2ced3782802c54d230b757'

# 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://soren.com/v1/chain/receipt?hash=0x731e0553663993c778025a6df7ce5a7e8b0b8f0b2a2ced3782802c54d230b757' \
  | 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%2Fsoren.com%2Fv1%2Fchain%2Freceipt
const res = await pay("https://soren.com/v1/chain/receipt?hash=0x731e0553663993c778025a6df7ce5a7e8b0b8f0b2a2ced3782802c54d230b757");
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://soren.com/v1/chain/receipt?hash=0x731e0553663993c778025a6df7ce5a7e8b0b8f0b2a2ced3782802c54d230b757")
    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
48 min agoPassed402237 ms$0.003
5 h agoPassed402226 ms$0.003
9 h agoPassed402367 ms$0.003
13 h agoPassed402421 ms$0.003
17 h agoPassed402462 ms$0.003
Show 10 older checks
21 h agoPassed402317 ms$0.003
25 h agoPassed402217 ms$0.003
29 h agoPassed402119 ms$0.003
33 h agoPassed402319 ms$0.003
37 h agoPassed402224 ms$0.003
41 h agoPassed402353 ms$0.003
44 h agoPassed402393 ms$0.003
2 days agoPassed402243 ms$0.003
2 days agoPassed402313 ms$0.003
2 days agoPassed402325 ms$0.003