Pending versus confirmed nonce for an address on 16 EVM chains: the next nonce t...
https://saylorinnovations.com/api/chain/pending-nonceOverview
Pending versus confirmed nonce for an address on 16 EVM chains: the next nonce to use and how many of its transactions are waiting in the mempool.
Protocol
x402
Price
$0.01
Payment Asset
USD Coin
Payment Network
eip155:8453
Category
crypto/transactions
Provider
Saylor Innovations Data Desk
Source
bazaar
Indexed
2026-10-21 04:24:47
Health
Status
healthy
Latency (p50)
586ms
Uptime (30d)
100.0%
Reliability Score
90/100
Last Checked
2026-10-28 16:17:09
Last Healthy
2026-10-28 16:17:09
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
Valid
Asset Verified
Known USDC
Facilitator
—
Input Schema
{
"method": "GET",
"queryParams": {
"address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
"chain": "ethereum"
},
"type": "http"
}
Output Schema
{
"example": {
"address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
"chain": "ethereum",
"chain_id": 1,
"confirmed_nonce": 5969,
"has_pending": false,
"next_nonce_to_use": 5969,
"note": "Nothing from this address is waiting in the queried node's mempool.",
"pending_nonce": 5969,
"pending_tx_count": 0,
"source": "Chain JSON-RPC (ethereum)"
},
"type": "json"
}
Recent Health Checks
| Time | Status | HTTP | Latency | Error |
|---|---|---|---|---|
| 2026-10-28 16:17:09 | healthy | 402 | 404ms | |
| 2026-10-28 15:24:20 | healthy | 402 | 513ms | |
| 2026-10-28 14:18:52 | healthy | 402 | 830ms | |
| 2026-10-28 07:01:32 | healthy | 402 | 950ms | |
| 2026-10-28 05:39:26 | healthy | 402 | 606ms | |
| 2026-10-28 04:41:35 | healthy | 402 | 810ms | |
| 2026-10-28 03:47:52 | healthy | 402 | 363ms | |
| 2026-10-28 02:48:01 | healthy | 402 | 503ms | |
| 2026-10-28 01:43:43 | healthy | 402 | 871ms | |
| 2026-10-28 00:37:14 | healthy | 402 | 1215ms | |
| 2026-10-27 23:41:09 | healthy | 402 | 360ms | |
| 2026-10-27 22:54:56 | healthy | 402 | 586ms | |
| 2026-10-27 21:44:24 | healthy | 402 | 597ms | |
| 2026-10-27 20:29:26 | healthy | 402 | 528ms | |
| 2026-10-27 19:23:53 | healthy | 402 | 413ms | |
| 2026-10-26 10:07:11 | healthy | 402 | 1108ms | |
| 2026-10-26 01:53:54 | healthy | 402 | 572ms |