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Phantom API — Citrea Gas Estimation
x402
Phantom API — Citrea Gas Estimation 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 gas costs for a transaction on the Citrea network before submission
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 Citrea network, allowing callers to predict transaction costs and validate feasibility before on-chain submission.
Example use cases
Pre-flight check before DeFi swap
“I want to swap tokens on a Citrea DEX — can you estimate the gas cost for this contract call from 0xSender123 to 0xDEXRouter456 with the swap calldata 0xaabbccdd before I actually submit it?”
Smart contract deployment cost check
“I'm about to deploy a contract on Citrea. Can you estimate the gas for this deployment transaction from 0xDeployer789 with this bytecode data so I know if I have enough to cover it?”
Gas budget planning for batch operations
“I need to know how much gas a single token transfer call costs on Citrea — from 0xMyWallet to 0xRecipient with the ERC-20 transfer calldata — so I can budget for running 50 of these.”
Technical details
Endpoint
POSThttps://phantom-api-omega.vercel.app/api/citrea/gas/estimate?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a gas estimate specifically on the Citrea Bitcoin Layer 2 network before submitting a transaction. Prefer this over generic Ethereum gas estimators when the target chain is Citrea. It is pay-per-call at $0.01 USDC via x402, making it suitable for agents that need occasional on-demand estimates without a subscription.
Side effects
- Invalid or malformed address in 'to' or 'from' fields returns a validation error
- Malformed or non-hex 'data' field may cause a parsing error
- Network unavailability or RPC timeout on Citrea returns a 5xx error
- Insufficient USDC payment (must include $0.01 via x402 protocol) returns HTTP 402
- Transaction simulation that would revert on-chain may return an error or revert reason
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| to | string | |
| data | string | |
| from | string | |
| value | string |
Tags
x402
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