# Saylor Innovations EVM Nonce Lookup (Arbitrum)

> Saylor Innovations EVM Nonce Lookup (Arbitrum) is a paid API for AI agents from saylorinnovations.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-03).

Returns the current on-chain transaction nonce for a given Ethereum address on the Arbitrum network

## Facts

- Endpoint: GET https://saylorinnovations.com/api/evm/arbitrum/nonce/:address?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-03
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/saylor-innovations-evm-nonce-lookup-arbitrum-4af4035e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_PjXBscCEBFx_HJl1L5uD6

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability saylor-innovations-evm-nonce-lookup-arbitrum-4af4035e
```

Example prompt: What is the current on-chain nonce for Ethereum address 0xAbC123...def456 on the Arbitrum network?

## When to prefer this

Use this endpoint when you need a quick, pay-per-call nonce lookup specifically on the Arbitrum Layer 2 network without setting up your own RPC node or managing API keys for a full blockchain provider. Ideal for agents automating Arbitrum transactions who need the current nonce on demand.

## Known failure modes

- Invalid or malformed Ethereum address returns an error
- Network connectivity issues to Arbitrum RPC nodes may cause timeouts
- Address with no transactions returns nonce of 0 (valid but may be unexpected)
- Rate limiting or payment failure (x402) blocks the request

## How this service works

EVM Nonce (arbitrum). Arbitrum account nonce: confirmed and pending transaction count for any address.

## Output

Returns the current transaction nonce (integer) for the specified Ethereum address on the Arbitrum network, representing the number of transactions sent from that address and indicating the next valid nonce for a new transaction.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/saylor-innovations-evm-nonce-lookup-arbitrum-4af4035e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from saylorinnovations.com](https://www.zero.xyz/host/saylorinnovations.com/llms.txt)