S

SYNTHORA · Onchain

by SYNTHORA

POSTBase

$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/onchain

1

Calls / 30d

1

Unique payers / 30d

Aug 12

Last called

exact

Payment scheme

Call this service

TypeScript · @x402/fetch
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
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

Pay to0x10800a5a5b9d72251566ec651e862a8b4b427de0
AssetUSD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913
NetworksBase
Schemesexact

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