x402 Multi-Chain RPC
x402Grade BLast checked 3 hours ago
GET https://x402tap.com/api/rpc
Safelisted read-only JSON-RPC proxy across major EVM chains (base, ethereum, polygon, arbitrum, optimism) — eth_call, eth_getBalance, eth_getTransactionReceipt, eth_getBlockByNumber, and more
Price$0.01per chain read · paid in USD on Base
Uptime100%
4/4 probes · 335.5 ms
Score79Grade B
Paid usage, 30 days6payers · 7 calls
How to buy
This endpoint takes pay-per-call payments over x402. Call it once without paying to see its live price; any x402 client then pays and retries automatically.
curl -i -X GET "https://x402tap.com/api/rpc"
# HTTP/1.1 402 Payment Required: price, asset and payTo are in the responseRecent checks
| Checked (UTC) | Result | Status | Time | Live price |
|---|---|---|---|---|
| 2026-10-11 08:00 | Valid 402 | 402 | 362 ms | $0.01 |
| 2026-10-11 03:30 | Valid 402 | 402 | 309 ms | $0.01 |
| 2026-10-10 23:00 | Valid 402 | 402 | 668 ms | $0.01 |
| 2026-10-10 17:15 | Valid 402 | 402 | 103 ms | $0.01 |
Receipts
No test purchases yet. Graded test purchases are next on our list; until then every number here comes from unpaid checks.
What a check proves