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Phantom API – Avalanche Gas Estimator
x402
Phantom API – Avalanche 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 2026-09-15).
Estimates the gas cost for a transaction on the Avalanche network given transaction parameters
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 Avalanche transaction, enabling callers to set appropriate gas limits before broadcasting the transaction to the network.
Example use cases
DeFi swap gas pre-check
“Before I submit this Avalanche DEX swap from my wallet 0xAbC...123 to the router contract 0xDeF...456 with this calldata 0x38ed1739..., can you estimate how much gas it'll need so I don't underprice it?”
Smart contract deployment cost check
“I want to deploy a contract on Avalanche — can you estimate the gas for the transaction where from is 0xMyWallet, to is null, and the data is the bytecode 0x608060...?”
Token transfer fee estimation
“How much gas will it cost to call the transfer function on the USDC contract at 0xB97EF9...on Avalanche if I send from 0xMyAddr with calldata encoding transfer to 0xRecipient for 100 USDC?”
Technical details
Endpoint
POSThttps://phantom-api-omega.vercel.app/api/avalanche/gas/estimateWhen to prefer
Use this endpoint when you need a fast, pay-per-call gas estimate on the Avalanche network without managing your own RPC node or API keys. Prefer it for pre-flight checks before submitting transactions, DeFi automation agents that need cost awareness, or any workflow that requires Avalanche-specific gas computation across 57+ supported networks via a single infrastructure provider.
Side effects
- Invalid or malformed address in 'to' or 'from' fields returns an error
- Malformed or non-hex 'data' field causes a parse error
- Simulated transaction reverts on-chain (e.g. insufficient token balance) may return a revert error rather than a gas estimate
- Avalanche RPC node unavailable causes a 5xx or timeout
- 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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