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santyvv-data: Read-Only eth_call
x402
santyvv-data: Read-Only eth_call is a paid API for AI agents from santyvv-x402.santyvv1993.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-01).
Executes a read-only eth_call to any Ethereum-compatible smart contract and returns the result
Price / call$0.01
Success—
StatusUnknown
How this service works
Read-only eth_call to any contract
Output
Returns the raw or ABI-decoded output of the specified smart contract read function — typically a hex-encoded bytes value or a decoded primitive such as a uint256, address, bool, or struct, depending on the function called. No gas is consumed and no state is changed.
Example use cases
Query Uniswap pool price on-chain
“Call the slot0 function on the Uniswap V3 ETH/USDC pool contract at 0x8ad599c3A0ff1De082011EFDDc58f1908eb6e6D8 on Ethereum mainnet so I can get the current tick and sqrtPriceX96.”
Read governance proposal state
“I need to check whether proposal ID 42 on the Compound Governor Bravo contract at 0xc0Da02939E1441F497fd74F78cE7Decb17B66529 is currently active or defeated — can you do a read-only call to the state(uint256) function?”
Check NFT ownership on-chain
“Call the ownerOf function on the CryptoPunks wrapper contract at 0xb47e3cd837dDF8e4c57F05d70Ab865de6e193BBB for token ID 1234 to see who currently owns it.”
Technical details
Endpoint
POSThttps://santyvv-x402.santyvv1993.workers.dev/api/chain/call?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to read state or computed values from any EVM-compatible smart contract without sending a transaction or paying gas. It is ideal for querying view and pure functions, fetching on-chain data for any arbitrary contract, and integrating real-time contract state into agent workflows. Prefer this over higher-level endpoints (ERC-20 balance, native balance, etc.) when you need to call a function not covered by those specialized endpoints.
Side effects
- Invalid contract address returns execution error or zero bytes
- Incorrect function selector or ABI encoding results in revert or garbled output
- Calling a non-existent function on a contract returns a revert
- Contract not deployed at the given address on the specified chain returns empty response
- Network or RPC unavailability causes a 5xx error
- Insufficient USDC payment causes 402 Payment Required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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