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Soren Nonce Reader — Base Mainnet
x402
Soren Nonce Reader — Base Mainnet is a paid API for AI agents from soren.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).
Returns the current transaction nonce for a given Ethereum address, read live from Base mainnet, priced per successful call via x402.
Price / call$0.002
Success—
StatusUnknown
How this service works
Read the next nonce for an address, live from Base mainnet, for a fraction of a cent. No API key, no account — a wallet is the only requirement, and you are charged only if the read succeeds. Plain unsigned data; the attested version of chain reads is /v1/oracle/onchain. Answers are read at the moment of the call and stamped with the block they came from where applicable.
Output
Returns the current nonce (transaction count) for the queried address as read from Base mainnet at the moment of the call, along with the block number the value was read from. The data is unsigned/unattested plain chain data.
Example use cases
Pre-signing nonce check for transaction
“Before I sign this Base transaction, what's the current nonce for 0xaDc3A47EFbD82Ed724a0E9A3D08D5A1A8e6586fd so I don't get a nonce mismatch?”
Monitoring wallet activity level
“How many transactions has 0x1234567890abcdef1234567890abcdef12345678 sent so far on Base — what's the nonce right now?”
Debugging stuck pending transaction
“My transaction is stuck — can you check the current on-chain nonce for 0xaBcD1234aBcD1234aBcD1234aBcD1234aBcD1234 on Base mainnet so I can figure out if there's a nonce gap?”
Technical details
Endpoint
GEThttps://soren.com/v1/chain/nonceWhen to prefer
Choose this endpoint when you need a fast, cheap, real-time nonce lookup on Base mainnet without setting up an API key or account — ideal for agents that sign transactions programmatically and need the current nonce on demand. If you need a cryptographically attested/signed proof of the nonce value, use /v1/oracle/onchain instead.
Side effects
- Invalid or malformed address format returns an error
- Address not found or zero-activity address may return 0 (not an error)
- Network congestion or Base node issues may cause timeouts
- Payment failure (insufficient USDC balance or x402 auth failure) results in no data returned
- Request with missing required 'address' query parameter returns validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | object |
Tags
x402
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