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EVM Nonce Lookup (Polygon) — Saylor Innovations
x402
EVM Nonce Lookup (Polygon) — Saylor Innovations 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 transaction count (nonce) for an Ethereum-compatible address on the Polygon network
Price / call$0.001
Success—
StatusUnknown
How this service works
EVM Nonce (polygon). Polygon PoS 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 nonce (transaction count) for the given EVM address on the Polygon network — an integer representing the total number of confirmed transactions sent from that address.
Example use cases
Pre-flight check before submitting transaction
“Before I broadcast this transaction, can you grab the current nonce for 0x742d35Cc6634C0532925a3b844Bc454e4438f44e on Polygon so I know what nonce to set?”
Detect stuck or pending transactions
“I think my wallet 0x1234567890abcdef1234567890abcdef12345678 has a stuck transaction on Polygon — can you check the on-chain nonce to compare it against my pending nonce?”
Monitor wallet activity level
“How many transactions has the address 0xAbCdEf1234567890AbCdEf1234567890AbCdEf12 sent on Polygon so far? I want to know its on-chain transaction count.”
Technical details
Endpoint
GEThttps://saylorinnovations.com/api/evm/polygon/nonce/:address?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need the current nonce for an EVM address specifically on the Polygon (MATIC) network. Use this over general RPC calls when you need a simple, cost-effective API wrapper without managing your own node. Prefer the Arbitrum sibling endpoint if the target chain is Arbitrum instead of Polygon.
Side effects
- Invalid or malformed Ethereum address returns an error
- Address with zero transactions returns nonce of 0 (not an error, but may be misinterpreted)
- Network connectivity issues with Polygon RPC node may return an error or timeout
- Non-checksummed addresses may or may not be accepted depending on implementation
Tags
x402
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