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EVM Nonce Lookup — Base Network
x402
EVM Nonce Lookup — Base Network is a paid API for AI agents from saylorinnovations.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-30).
Returns the current on-chain transaction nonce for a given Ethereum address on the Base blockchain network
Price / call$0.001
Success—
StatusUnknown
How this service works
EVM Nonce (base). Base account nonce for any address: confirmed nonce and pending nonce (a gap means transactions are still waiting in the mempool). Use it before sending a transaction or to detect a pending one.
Output
Returns the current transaction nonce (integer) for the specified EVM address on the Base network, representing the number of transactions confirmed on-chain from that address
Example use cases
Pre-transaction nonce check
“Before I sign and send my next transaction on Base, can you look up the current nonce for my wallet address 0xAbCd1234...5678 so I don't get a nonce conflict?”
Stuck transaction diagnosis
“My transaction on Base seems stuck — can you fetch the on-chain nonce for 0xDeAd...BeeF to see if there's a nonce gap causing the problem?”
Wallet activity verification
“Can you check the nonce for address 0x9999...AAAA on Base to confirm how many transactions it has actually sent on-chain?”
Technical details
Endpoint
GEThttps://saylorinnovations.com/api/evm/base/nonce/:address?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need the on-chain nonce for a specific EVM address on the Base network specifically — for example, when constructing or debugging transactions on Base, verifying wallet activity, or detecting nonce gaps. Prefer this over generic RPC calls when you need a simple, pay-per-use REST API without managing your own RPC node.
Side effects
- Invalid or malformed Ethereum address returns an error
- Address that has never transacted may return nonce of 0
- Network connectivity issues to Base RPC may cause timeouts
- Non-checksummed addresses may be rejected depending on implementation
Tags
x402
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