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FunctionsGeneralairdropFees

estimateAirdropFees

Estimates total cost for an SPL token airdrop using local heuristics only. No transactions are sent and no RPC-dependent fee endpoints are called. The estimate includes:

  • rent for new recipient token accounts (fixed rent exemption for 165-byte ATA)
  • a local per-instruction fee model with a small buffer

For large recipient lists, actual airdrops are split across multiple transactions. The estimator uses a per-instruction heuristic per batch and sums across batches; values are conservative and may differ from on-chain execution.

Usage

page.tsx
import { useConnection } from "@solana/wallet-adapter-react";
import { estimateAirdropFee, type AirdropRecipient } from "@okito/sdk";
 
const recipients: AirdropRecipient[] = [
  { address: "...", amount: 10n },
  { address: "...", amount: 20n },
];
 
const {connection} = useConnection();
const airdropFees = await estimateAirdropFee(connection, recipients, /* accountsToCreate */ 2);

Parameters

NameTypeDefault
connection
Connection
Solana connection instance.
recipients
AirdropRecipient[]
Recipient addresses and amounts (bigint recommended).
accountsToCreate
number
How many recipient ATAs are expected to be created.
priorityFee
number
Optional priority fee in micro‑lamports.
—

Response

NameTypeDefault
estimatedFee
number
Total estimated fee in lamports.
breakdown
{ transactionFees: number; accountCreations: number; priorityFees: number; }
Component costs.
Last updated on
transferFeesburnToken