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Saylor Innovations On-Chain Lookups – Read-Only Contract Call (eth_call) on Polygon
x402
Saylor Innovations On-Chain Lookups – Read-Only Contract Call (eth_call) on Polygon 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) against a specified contract address on the Polygon network and returns the ABI-encoded result.
Price / call$0.003
Success—
StatusUnknown
How this service works
Read-Only Contract Call (eth_call) (polygon). Polygon 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 ('polygon'), the queried contract address, the raw hex-encoded return data from the contract call (result), a boolean indicating whether the call reverted, and an optional error message if the call failed or reverted.
Example use cases
Check token balance on Polygon
“Call the balanceOf function on the MATIC stablecoin contract at 0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174 on Polygon with the ABI-encoded calldata for address 0xDeAdBeEf00000000000000000000000000000001 and tell me the result.”
Verify DeFi pool reserve state
“Query the getReserves function on the QuickSwap LP contract at 0x6e7a5820baD6cebA8Ef5ea69c0C92EbbDAc9CE48 on Polygon — pass the ABI-encoded calldata and return the raw hex result so I can decode the current pool reserves.”
Check NFT ownership on Polygon
“I need to check who owns token ID 42 on the Polygon NFT contract at 0xA1b2C3d4E5F6000000000000000000000000ABCD — use the ownerOf calldata encoded as 0x6352211e000000000000000000000000000000000000000000000000000000000000002a.”
Technical details
Endpoint
GEThttps://saylorinnovations.com/api/evm/polygon/call/:address?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to read on-chain state from a Polygon (MATIC) smart contract without submitting a transaction. Prefer it over base or BSC siblings when your target contract is deployed on Polygon. It is ideal for querying ERC-20 balances, allowances, NFT ownership, DeFi pool state, or any public view/pure function result on Polygon.
Side effects
- Invalid or malformed ABI-encoded calldata returns a revert with reverted:true and an error message
- Non-existent or zero-address contract returns an empty result or revert
- Network congestion or RPC node unavailability causes a timeout or 5xx error
- Incorrect contract address format (non-checksummed or invalid hex) returns a 400 error
- Calling a non-view/non-pure function that writes state will revert since eth_call is read-only
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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