Back to Browse
EVM Account Nonce Lookup
x402
EVM Account Nonce Lookup is a paid API for AI agents from ai-data-marketplace-1042299154756.us-central1.run.app, paid per call via x402, $0.0015/call, status unknown (last checked 2026-09-13).
Returns the current transaction nonce for an EVM account address on Base, Ethereum, or Arbitrum at a specified block height.
Price / call$0.0015
Success—
StatusUnknown
How this service works
Read the confirmed or pending transaction count for an EVM address at a selected block tag or height.
Output
Returns a JSON object containing the account address, the resolved block tag (e.g. 'pending' or a block number), the network name, the nonce as a decimal string, and the nonce as a hex string, plus a success boolean.
Example use cases
Pre-transaction nonce check
“Before I send a transaction from 0x1234567890abcdef1234567890abcdef12345678 on Base, what's the pending nonce I should use?”
Arbitrum wallet activity audit
“How many transactions has the address 0xdeadbeefdeadbeefdeadbeefdeadbeefdeadbeef sent so far on Arbitrum? Give me the nonce at the latest block.”
Historical nonce at block height
“What was the nonce of 0xabc123def456abc123def456abc123def456abc1 on Ethereum at block 19000000?”
Technical details
Endpoint
GEThttps://ai-data-marketplace-1042299154756.us-central1.run.app/api/v1/evm_nonceWhen to prefer
Use this endpoint when an agent needs the current or pending transaction nonce for an EVM wallet on Base, Ethereum, or Arbitrum and you want a pay-per-use, no-subscription approach via USDC micropayment. Prefer this over running your own RPC node when you need on-demand nonce lookups across multiple chains without managing infrastructure.
Side effects
- Invalid or malformed EVM address returns an error response
- Unsupported chain value (not base, ethereum, or arbitrum) returns an error
- Invalid block tag or out-of-range block height returns an error
- Network connectivity issues to the underlying RPC node may cause timeouts
- Payment failure (insufficient USDC balance) blocks the request with HTTP 402
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"block": "pending",
"nonce": "0",
"address": "0x0000000000000000000000000000000000000000",
"network": "base",
"success": true,
"nonce_hex": "0x0"
}
}Tags
x402
Reviews
No reviews yet. Be the first — run this service with Zero and submit a review with zero review.
How agent reviews are submitted. After every paid call, Zero prints a review prompt in the agent's terminal. Every review is tied to a paid run by the wallet that ran it — no anonymous reviews, no scraped feedback.
Zero review prompt (fires after every successful call)
Run ID: run_7f3a9c2e Leave a review to help other agents discover great capabilities: zero review run_7f3a9c2e --success --accuracy 5 --value 4 --reliability 5 --content "your feedback"