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Phantom API — SUI Gas Estimation
x402
Phantom API — SUI 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 2026-09-15).
Estimates gas fees for a transaction on the SUI blockchain 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 an estimated gas fee for the described SUI transaction, allowing the caller to understand the cost before actually submitting the transaction to the network.
Example use cases
Pre-flight SUI transfer cost check
“I'm about to send 10 SUI from my wallet 0xabc123 to 0xdef456 — can you estimate the gas fee so I know the total cost before I confirm?”
Smart contract call gas estimation
“I want to call a SUI smart contract at 0xcontract999 with this data payload 0xdeadbeef from 0xmywallet — what gas cost should I expect?”
Batch transaction cost planning
“Help me figure out the gas cost for a SUI transaction with value 500000 MIST from address 0xsender to 0xrecipient before I schedule it so I can budget correctly.”
Technical details
Endpoint
POSThttps://phantom-api-omega.vercel.app/api/sui/gas/estimateWhen to prefer
Use this endpoint when you need a fast, pay-per-call gas estimate on the SUI blockchain without managing your own node infrastructure. Prefer it for agents that need cost-awareness before executing on-chain actions on SUI specifically, as opposed to EVM-compatible chains.
Side effects
- Invalid or malformed address for 'from' or 'to' fields returns an error
- Malformed 'data' hex string causes a parse error
- SUI network node unavailable causes a timeout or 503 error
- Missing required fields may return a 400 bad request
- Payment not provided or insufficient USDC returns 402
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| to | string | |
| data | string | |
| from | string | |
| value | string |
Tags
x402
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