$0.005
per call · USD Coin on Base
Run a read-only transaction simulation with eth_call and eth_estimateGas against a supported public EVM RPC without signing or broadcasting.
Endpoint
POST https://ai-data-marketplace-1042299154756.us-central1.run.app/api/v1/tx_simulator2
Calls / 30d
1
Unique payers / 30d
Aug 14
Last called
exact
Payment scheme
Call this service
import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";
const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const fetchWithPay = wrapFetchWithPayment(fetch, account);
const res = await fetchWithPay("https://ai-data-marketplace-1042299154756.us-central1.run.app/api/v1/tx_simulator", {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({
"data": "0x313ce567",
"from": "0x8647F7D7a1368a467Ad1FF757fBc2e7167973558",
"network": "base",
"to": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"value": "0"
}),
});
const data = await res.json();curl -X POST \
"https://ai-data-marketplace-1042299154756.us-central1.run.app/api/v1/tx_simulator" \
-H "Content-Type: application/json" \
-d '{"data":"0x313ce567","from":"0x8647F7D7a1368a467Ad1FF757fBc2e7167973558","network":"base","to":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","value":"0"}' \
-H "X-PAYMENT: <signed x402 payment>"Example response
{
"broadcast": false,
"estimated_gas": "30958",
"marketplace_metadata": "[object with keys: data_mode, billable, availability, source; full example in /openapi.json]",
"network": "base",
"return_data": "0x0000000000000000000000000000000000000000000000000000000000000006",
"simulation_status": "SUCCESS",
"source": "base public JSON-RPC",
"success": true
}Payment details
0x8647f7d7a1368a467ad1ff757fbc2e7167973558USD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913Is this your API?
Pin it to the top of Onchain Data and the homepage with a featured placement.
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