saylorinnovations.com
x402Grade FLast checked 4 hours ago
GET https://saylorinnovations.com/api/evm/optimism/balance/:address
EVM Wallet Balances (optimism). Optimism ERC-20 token balance and native ETH balance for any wallet: up to 20 ERC-20 tokens (?tokens=) in one call, with symbols, decimals and human-readable amounts. Live chain head.
Price$0.003per chain read · paid in USD on Solana
Uptime0%
0/3 probes
Score3Grade F
Paid usage, 30 days1payers · 2 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://saylorinnovations.com/api/evm/optimism/balance/:address"
# 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 07:00 | No valid 402 | 400 | 368 ms | not listed |
| 2026-10-11 02:30 | No valid 402 | 400 | 297 ms | not listed |
| 2026-10-10 22:01 | No valid 402 | 400 | 288 ms | not listed |
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