$0.05
per call · USD Coin on Base
SYNTHORA Onchain Primitives: multichain (Base/Ethereum/Polygon/Arbitrum/Optimism) transaction receipts, tx lookup, wallet nonce, contract/proxy (EIP-1967) detection, ENS resolution, ERC20 + native balances, contract introspection. Deterministic, Ed25519-signed. 0.001 USDC via x402 on Base. First 3 calls FREE per wallet — send header 'X-WALLET: 0x<your Base address>' (no payment); after that 0.001 USDC per call.
Endpoint
POST https://api.hergertsynthora.com/v1/onchain1
Calls / 30d
1
Unique payers / 30d
Aug 12
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://api.hergertsynthora.com/v1/onchain", {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({
"name": "vitalik.eth",
"op": "ens"
}),
});
const data = await res.json();curl -X POST \
"https://api.hergertsynthora.com/v1/onchain" \
-H "Content-Type: application/json" \
-d '{"name":"vitalik.eth","op":"ens"}' \
-H "X-PAYMENT: <signed x402 payment>"Example response
{
"niche": "onchain",
"ok": true,
"result": {
"address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
"found": true,
"name": "vitalik.eth",
"op": "ens",
"signed": "ed25519"
}
}Payment details
0x10800a5a5b9d72251566ec651e862a8b4b427de0USD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913Is this your API?
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