$0.01
per call · USD Coin on Base
Which Base public RPCs serve a stale chain tip. Every 30s we ask all major public RPCs for eth_blockNumber in parallel and record how many blocks behind the fastest peer each was, plus latency and error rate. An RPC never reports its own lag, so an agent reading a balance from a lagging endpoint cannot tell. Omit ?rpc for the full map; ?rpc=<host> for one.
Endpoint
GET https://x402.dailyelo.com/v1/rpc/health3
Calls / 30d
1
Unique payers / 30d
Aug 29
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.dailyelo.com/v1/rpc/health", {
method: "GET",
});
const data = await res.json();curl -X GET \
"https://x402.dailyelo.com/v1/rpc/health?rpc=https%3A%2F%2Fmainnet.base.org" \
-H "X-PAYMENT: <signed x402 payment>"Example response
{
"endpoints": [
{
"behind_1plus_rate": 0.03,
"error": 2,
"error_rate": 0.0007,
"height_behind": {
"max": 2,
"p50": 0,
"p90": 0,
"p99": 1,
"samples": 2878
},
"latency_ms": {
"max": 5053,
"p50": 88,
"p90": 135,
"p99": 232,
"samples": 2878
},
"ok": 2878,
"probes": 2880,
"rpc": "https://base-rpc.publicnode.com",
"stale": 0
}
],
"network": "eip155:8453",
"schema": "rpchealth/v1",
"updated_at": 1719500000,
"window": {
"endpoints_compared": 10,
"hours": 24,
"probe_interval_s": 30,
"probe_rounds": 2880
}
}Payment details
0xd617a7145ca56e3ed58d639f9dec6999b22441eeUSD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913Is this your API?
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