$0.001
per call · USD Coin on Base
Encode or decode base64. POST {"mode":"encode","input":"..."} or {"mode":"decode",...}. Supports standard and url-safe alphabets via {"urlsafe":true}. Decoding validates the input and reports an error rather than returning silent garbage.
Endpoint
POST https://x402-echo-service.onrender.com/base645
Calls / 30d
3
Unique payers / 30d
Sep 2
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://x402-echo-service.onrender.com/base64", {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({
"input": "hello world",
"mode": "encode"
}),
});
const data = await res.json();curl -X POST \
"https://x402-echo-service.onrender.com/base64" \
-H "Content-Type: application/json" \
-d '{"input":"hello world","mode":"encode"}' \
-H "X-PAYMENT: <signed x402 payment>"Example response
{
"bytes": 11,
"mode": "encode",
"output": "aGVsbG8gd29ybGQ="
}Payment details
0x9cc774a8ed49d89cba1a288f4a050b8f7fba77eeUSD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913Is this your API?
Pin it to the top of Developer Tools and the homepage with a featured placement.
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