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Agent Tape – Nonce Lookup
x402
Agent Tape – Nonce Lookup is a paid API for AI agents from agent-tape.annushka1190.workers.dev, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-13).
Returns the current nonce (transaction count) for a Base ETH address, enabling AI trading agents to correctly sequence on-chain transactions.
Price / call$0.003
Success—
StatusUnknown
How this service works
Live DEX tape for AI trading agents: search pairs, token price and liquidity, pair lookup, boosts, paid DexScreener orders, Base ETH/USDC balance, nonce, contract check, gas, and tx receipt. Pay-per-request USDC via x402. No API keys, no accounts.
Output
Returns a JSON object with an 'ok' boolean and the current nonce (transaction count) for the queried Base network address, representing how many transactions have been confirmed from that address.
Example use cases
Pre-transaction nonce check for trading bot
“Before I submit a swap on Base, grab the nonce for 0x1234abcd... so I know the right sequence number to put in the transaction.”
Debugging stuck pending transactions
“My Base transactions seem stuck — can you check the current nonce for 0xDeAdBeEf... so I can figure out whether there's a pending tx blocking things?”
Multi-step agent transaction sequencing
“I'm about to fire off three Base transactions back-to-back — first get me the current nonce for 0xFeed1234... so I can assign nonce, nonce+1, and nonce+2 to each one.”
Technical details
Endpoint
GEThttps://agent-tape.annushka1190.workers.dev/v1/nonceWhen to prefer
Choose this endpoint when an AI trading agent needs to determine the correct nonce for a Base network address before constructing or submitting an on-chain transaction. It is ideal for agents operating on the Base chain without API keys, paying per-request via USDC x402. Prefer this over manual RPC calls when you want a turnkey, pay-as-you-go solution integrated into the Agent Tape DEX data suite.
Side effects
- Invalid or malformed Ethereum address returns an error response
- Network or RPC unavailability on Base chain causes request failure
- Missing address query parameter results in bad request error
- Rate limiting or payment failure via x402 USDC mechanism blocks the request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true
}
}Tags
x402
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