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MoneyTools Contract Read (eth_call)
x402
MoneyTools Contract Read (eth_call) is a paid API for AI agents from tools.moneytools.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-11-05).
Calls any read-only (view) function on an EVM smart contract using a human-readable function signature and returns the decoded result, with optional historical block support.
Price / call$0.001
Success—
StatusUnknown
How this service works
Read any contract (eth_call): Call any view function with a human signature and args, e.g. balanceOf(address) returns (uint256); decoded result. Optional historical block. Free tier 10/day; then $0.001 via x402 (HTTP 402 + PAYMENT-REQUIRED) or X-API-Key credits. Not charged on failure. $0.001 USDC per call via x402 on Base. Run by MoneyTools.
Output
A JSON object containing the decoded return value(s) of the smart contract view function call, plus a payment object indicating whether a charge was made (boolean), network, amount in USD, and transaction hash. Also includes free tier usage metadata and optional plan/partner hints under _moneytools.
Example use cases
ERC-20 token balance check
“Can you check how many USDC tokens the address 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 holds on Base? The USDC contract address is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913, function is balanceOf(address) returns (uint256).”
Historical on-chain state lookup
“What was the totalSupply of the USDC contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Ethereum at block 19000000? The function is totalSupply() returns (uint256).”
DeFi protocol on-chain data query
“Call the getReserves() returns (uint112,uint112,uint32) function on the Uniswap V2 pair contract 0xB4e16d0168e52d35CaCD2c6185b44281Ec28C9Dc on Ethereum so I can see the current liquidity reserves.”
Technical details
Endpoint
GEThttps://tools.moneytools.dev/v1/contract-read?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to read on-chain EVM contract state using a human-readable function signature without setting up a full Web3 stack or managing RPC providers. It is ideal for lightweight, one-off contract reads across multiple chains (Base, Ethereum, Arbitrum, Optimism, Polygon, BSC, Avalanche), including historical block queries. Prefer it over running your own node or using raw JSON-RPC when you want decoded results and pay-per-call pricing with no subscription required.
Side effects
- Invalid or malformed contract address returns an error
- Wrong or mismatched function signature causes a revert or decode failure
- Unsupported chain name returns a validation error
- Requested block number does not exist or is too old returns an error
- Free tier exhausted (10/day) triggers HTTP 402 requiring x402 micropayment or API key
- Contract has no matching function (function not found) returns a call failure
- Network congestion or RPC timeout causes a temporary error
- Arguments list doesn't match signature arity causes a decode error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json"
}Tags
x402
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