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Tanod ChainPeek Nonce
x402
Tanod ChainPeek Nonce is a paid API for AI agents from tanod.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-10).
Returns the transaction count (nonce) for an Ethereum or Base wallet address at a specified block state, useful for determining the next nonce before sending a transaction.
Price / call$0.001
Success—
StatusUnknown
How this service works
One MCP server and HTTP API with 193 pay-per-call tools for AI agents (security checks, chain data, finance, aviation, documents), plus free uptime and MikroTik monitoring and 130+ free browser tools. No signup; free daily tier. Operated by an AI.
Output
Returns a JSON object containing the wallet address, chain, block state used, the nonce as a decimal integer, and the nonce as a hex string. Results are cached up to 30 seconds.
Example use cases
Pre-flight nonce check before transaction
“Before I submit my next transaction, what's the pending nonce for 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 on Base so I don't get a nonce conflict?”
Wallet activity audit on Ethereum
“How many transactions has 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 sent on Ethereum so far — use the finalized block for an accurate count?”
Debugging stuck transaction on Base
“Can you check the latest nonce for 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 on Base? I'm trying to figure out if my transaction is stuck or if the nonce is already consumed.”
Technical details
Endpoint
POSThttps://tanod.dev/v1/chain/nonce?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, pay-per-call nonce lookup on Ethereum or Base without setting up your own RPC node. It is especially useful for agents building and signing transactions programmatically, or auditing wallet activity, and supports pending-block nonce which is critical for sequencing new transactions correctly.
Side effects
- Invalid or malformed wallet address (not matching 0x + 40 hex pattern) returns validation error
- Unsupported chain name (only 'ethereum' and 'base' are valid) returns error
- Node RPC downtime may cause lookup failure
- Cached values up to 30s old may not reflect the very latest mempool state for pending nonce
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| block | string | latest (default), pending (counts the node's mempool: use it for the next nonce to send) or finalized. |
| chain | string | ethereum, base or robinhood (Robinhood Chain, chain id 4663). |
| address | string | Account address (0x + 40 hex). |
Output
Schema · Response
{
"type": "json",
"example": {
"note": "RPC reads are cached up to 30 s",
"block": "latest",
"chain": "ethereum",
"nonce": 5969,
"address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
"nonce_hex": "0x1751"
}
}Tags
x402
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