$0.2
per call · USD Coin on Base
A Grok-synthesized token due-diligence report using live contract, market, holder, project website, social-profile and promotion evidence. Raw contract evidence and exact transaction simulation remain free.
Endpoint
POST https://pulse-api-production-7aae.up.railway.app/base/v1/preflight3
Calls / 30d
1
Unique payers / 30d
Sep 10
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://pulse-api-production-7aae.up.railway.app/base/v1/preflight", {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({
"amount": "1",
"intent": "swap",
"notes": "Review this on-chain action before signing",
"tokenAddress": "0x0000000000000000000000000000000000000001"
}),
});
const data = await res.json();curl -X POST \
"https://pulse-api-production-7aae.up.railway.app/base/v1/preflight" \
-H "Content-Type: application/json" \
-d '{"amount":"1","intent":"swap","notes":"Review this on-chain action before signing","tokenAddress":"0x0000000000000000000000000000000000000001"}' \
-H "X-PAYMENT: <signed x402 payment>"Example response
{
"job": {
"id": "opaque-job-id",
"stage": "payment_settled"
},
"pollUrl": "/v1/jobs/opaque-job-id",
"recoveryToken": "opaque-recovery-token"
}Payment details
0xa05b83c9a2228b1f4e32952a71e5b189df4f3973USD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913Is this your API?
Pin it to the top of Onchain Data and the homepage with a featured placement.
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