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Phantom API — Gnosis Chain Gas Estimator
x402
Phantom API — Gnosis Chain Gas Estimator is a paid API for AI agents from phantom-api-omega.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-20).
Estimates the gas cost for a transaction on the Gnosis blockchain network before it is submitted
Price / call$0.01
Success—
StatusUnknown
How this service works
Lightning-fast access to blockchain data, smart contract insights, and Web3 infrastructure across 57+ networks. Pay-per-call via x402.
Output
Returns a gas estimate (in gas units) for the described transaction on the Gnosis network, allowing the caller to assess transaction cost and feasibility before committing it on-chain.
Example use cases
Pre-flight gas check for DeFi swap
“I want to call a swap function on a Gnosis DEX smart contract — from my wallet 0xABC...111 to the contract at 0xDEF...222 with this calldata 0xa9059cbb000... and no ETH value. Can you estimate the gas before I submit?”
Budget estimation for bulk NFT minting
“I'm planning to mint an NFT on Gnosis chain from address 0x111...AAA to the contract 0x222...BBB with this mint calldata 0x40c10f19... — estimate the gas so I can plan my fees budget.”
Validate contract call feasibility
“Check if this Gnosis transaction would likely succeed and how much gas it needs — sender is 0xFFF...000, contract is 0xEEE...999, calldata is 0x6a627842..., value is 0.”
Technical details
Endpoint
POSThttps://phantom-api-omega.vercel.app/api/gnosis/gas/estimate?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a fast, pay-per-call gas estimate specifically on the Gnosis chain (xDAI) without committing a full RPC node subscription. Prefer it over generic Ethereum gas estimators when targeting Gnosis-specific transactions, and over manual eth_estimateGas calls when you want a simple HTTP API abstraction with no node infrastructure required.
Side effects
- Invalid or malformed address in 'to' or 'from' fields returns an error
- Malformed or non-hex calldata in 'data' field causes a parsing error
- Transaction would revert on-chain, causing the estimate to fail with a revert reason
- Network connectivity issues with Gnosis RPC result in a timeout or unavailable error
- Missing required fields may result in a 400 bad request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| to | string | |
| data | string | |
| from | string | |
| value | string |
Tags
x402
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