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Saylor Innovations On-Chain Lookups — Arbitrum eth_call
x402
Saylor Innovations On-Chain Lookups — Arbitrum eth_call is a paid API for AI agents from saylorinnovations.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-30).
Executes a read-only smart contract call (eth_call) on Arbitrum, returning the ABI-encoded result or revert status
Price / call$0.003
Success—
StatusUnknown
How this service works
Read-Only Contract Call (eth_call) (arbitrum). Arbitrum read-only contract call (eth_call) with ?data= calldata, optional ?from= and ?block=; reverts reported cleanly with revert data.
Output
Returns a JSON object containing the chain name ('arbitrum'), the queried contract address, the raw hex-encoded result string (or null), a boolean indicating whether the call reverted, and an error message string (or null) if the call failed.
Example use cases
Token balance check on Arbitrum
“I need to check the USDC balance of wallet 0xAbC123... on Arbitrum — can you call balanceOf on the USDC contract at 0xaf88d065e77c8cC2239327C5EDb3A432268e5831 using ABI-encoded calldata for that address?”
DeFi pool reserve inspection
“Can you read the getReserves function from the Uniswap V3 pool contract at 0x1234...abcd on Arbitrum so I can see the current liquidity reserves without sending a transaction?”
Verify on-chain governance parameter
“Please call the votingDelay() view function on the Arbitrum governance contract at 0xDeadBeef...1234 and tell me what value it returns — I want to confirm it hasn't changed.”
Technical details
Endpoint
GEThttps://saylorinnovations.com/api/evm/arbitrum/call/:address?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a lightweight, pay-per-call read-only eth_call on Arbitrum without managing your own RPC node or API keys. Ideal for AI agents that need sporadic on-chain state reads on Arbitrum (balances, allowances, view functions) and want to pay micro-fees via x402 rather than subscribing to a full RPC provider.
Side effects
- Invalid or malformed ABI-encoded calldata returns a revert with error message
- Contract address does not exist on Arbitrum — returns reverted: true
- Network congestion or RPC node unavailability — may return error string
- Incorrect function selector in calldata causes revert
- Missing required 'data' query parameter results in bad request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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