Phantom API — Worldchain Gas Estimator

x402

Phantom API — Worldchain 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 2026-09-14).

Estimates gas costs for a transaction on the Worldchain network before submission

Price / call$0.01

Seller volume →—

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 an estimated gas amount (in gas units) required to execute the specified transaction on the Worldchain network, allowing callers to budget fees and avoid out-of-gas failures before actual submission.

Example use cases

Pre-flight check for token transfer

“I'm about to send some tokens on Worldchain from 0x1234...abcd to 0x5678...efgh — can you estimate the gas cost before I actually submit the transaction?”

Smart contract interaction cost check

“I want to call a smart contract on Worldchain with this calldata: 0xa9059cbb000000... from my wallet 0xABCD...1234. What's the estimated gas I should budget for?”

DApp fee preview before user signs

“My user is about to approve a contract interaction on Worldchain — can you run a gas estimate for the transaction going to 0xDEF...5678 with value 0.01 ETH so I can show them the fee upfront?”

Technical details

Endpoint

POSThttps://phantom-api-omega.vercel.app/api/worldchain/gas/estimate

When to prefer

Choose this endpoint when you need a fast, pay-per-call gas estimate specifically on the Worldchain network without managing your own RPC infrastructure. Ideal for agents that need pre-flight fee checks before submitting transactions, or DApps that want to surface fee previews to users without a dedicated node.

Side effects

Invalid or malformed address in 'to' or 'from' fields returns an error
Malformed or non-hex 'data' field causes a parse error
Simulation reverts if the contract call would revert on-chain
Network unavailability or RPC timeout may return a 5xx error
Payment failure via x402 if USDC balance is insufficient

Input

Schema · Request body

Field	Type	Description
to	string
data	string
from	string
value	string

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