ToolVet
77trust / 100

Oracle Onchain

by Soren in Onchain & crypto

x402 APIPassing, checked 51 min ago

A signed, timestamped read from Base mainnet: whether a transaction landed and in which block, an address's ETH and USDC balance, or the current block height and gas price. Use the tx query when you paid over x402, received settlement_pending, and need it resolved — the transaction is in a block with status 1, or it is not. Read through a commercial node, not the public RPC. Verify with soren.com/oracle-key.json

GET
https://soren.com/v1/oracle/onchain
Price
$0.01
per call in USDC
Uptime
100%
last 30 days
Response time
364 ms
563 ms slowest 5%
Last check
Passed
51 min ago, next any minute now

Run a free test callHow to call it

Reliability

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Status and outage history · Atom feed

How to call it

GET https://soren.com/v1/oracle/onchain

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.

GET https://soren.com/v1/oracle/onchain?address=0xaDc3A47EFbD82Ed724a0E9A3D08D5A1A8e6586fd&hash=0x731e0553663993c778025a6df7ce5a7e8b0b8f0b2a2ced3782802c54d230b757&q=tx

Parameters

ParameterTypeRequiredDescription
addressstringNoWith q=balance, the address to read.
hashstringNoWith q=tx, the 32-byte transaction hash.
qstringYestx, balance or block.

Example response

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

{
  "provenance": {
    "observed_at": "<ISO-8601 UTC>",
    "signature": {
      "algorithm": "Ed25519",
      "value": "<base64>"
    },
    "upstream_sha256": "<hex>"
  },
  "source": {
    "name": "Base mainnet (via Coinbase Developer Platform Node)"
  },
  "value": {
    "block_number": "<int>",
    "confirmed": true,
    "found": true,
    "gas_used": "<int>",
    "query": "tx",
    "status": "success"
  }
}

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 'https://soren.com/v1/oracle/onchain?address=0xaDc3A47EFbD82Ed724a0E9A3D08D5A1A8e6586fd&hash=0x731e0553663993c778025a6df7ce5a7e8b0b8f0b2a2ced3782802c54d230b757&q=tx'

# 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/oracle/onchain?address=0xaDc3A47EFbD82Ed724a0E9A3D08D5A1A8e6586fd&hash=0x731e0553663993c778025a6df7ce5a7e8b0b8f0b2a2ced3782802c54d230b757&q=tx' \
  | 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%2Fsoren.com%2Fv1%2Foracle%2Fonchain
const res = await pay("https://soren.com/v1/oracle/onchain?address=0xaDc3A47EFbD82Ed724a0E9A3D08D5A1A8e6586fd&hash=0x731e0553663993c778025a6df7ce5a7e8b0b8f0b2a2ced3782802c54d230b757&q=tx");
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.get("https://soren.com/v1/oracle/onchain?address=0xaDc3A47EFbD82Ed724a0E9A3D08D5A1A8e6586fd&hash=0x731e0553663993c778025a6df7ce5a7e8b0b8f0b2a2ced3782802c54d230b757&q=tx")
    print(res.status_code, res.text)

Security scan

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Recent checks

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51 min agoPassed402360 ms$0.01
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2 days agoPassed402321 ms$0.01
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