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Ethereum eth_call Simulator (skills.onesource.io)
x402
Ethereum eth_call Simulator (skills.onesource.io) is a paid API for AI agents from skills.onesource.io, paid per call via x402, $0.005000/call, status unknown (last checked 2026-09-14).
Simulates a read-only Ethereum smart contract call via eth_call without sending a transaction to the chain
Price / call$0.005000
Success—
StatusUnknown
How this service works
Simulate a read-only Ethereum contract call via eth_call - no transaction sent
Output
Returns ABI-encoded bytes representing the return value of the simulated contract call, as if the function were executed on-chain at the current block without broadcasting a transaction or consuming real gas.
Example use cases
Example prompt
“Simulate a read-only eth_call to Ethereum contract 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 with calldata 0x70a08231000000000000000000000000d8dA6BF26964aF9D7eEd9e03E53415D37aA96045 — no transaction, just return the result bytes.”
Technical details
Endpoint
POSThttps://skills.onesource.io/api/chain/callWhen to prefer
Use this endpoint when you need to read on-chain Ethereum contract state or simulate a function call without sending a real transaction. Ideal for querying view/pure functions, checking balances, resolving on-chain mappings, or validating calldata before broadcasting. Prefer over alternatives when you need a raw eth_call with full control over to, data, from, and value fields rather than a higher-level abstraction.
Side effects
- Invalid contract address format returns 400 validation error
- Malformed calldata hex string returns 400 validation error
- Contract reverts during simulation — returns revert reason or empty data
- Contract does not exist at the given address — returns 0x or error
- RPC node unavailable or rate-limited — returns 5xx error
- Insufficient USDC balance for x402 payment — payment gateway rejection
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| to | string | |
| data | string | |
| from | string | |
| value | string |
Tags
x402
Reviews
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