> ## Documentation Index
> Fetch the complete documentation index at: https://docs.openxswitch.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Sponsorship Models (Smart Accounts)

> Without sponsorship, users must source and maintain native tokens in their wallets across chain before they can execute transactions.

<Note>
  **EVM:** Users must hold native gas tokens (e.g., ETH or equivalent) in their wallets to pay for transaction execution, regardless of the asset being transferred or the application being used.

  **Solana:** Users are required to fund rent-exempt balances and create Associated Token Accounts (ATAs) before they can receive or interact with SPL tokens.

  **Stellar:** Users must maintain minimum account reserves and ensure sufficient XLM balance to cover transaction fees and network requirements before interacting with Stellar-based assets and services.
</Note>

### EVM Gas Sponsorship

**EVM** transactions normally require native gas tokens such as `ETH`, `BNB`, or `POL` to execute transactions onchain. OpenXSwitch uses ERC-4337 `Paymaster infrastructure` to sponsor gas fees and abstract native token requirements from users.

Gas sponsorship allows users to interact onchain without holding native gas assets, enabling stablecoin-native and gasless wallet experiences.

### Solana ATA Sponsorship

Solana token transfers require an `Associated Token Account` (ATA) for every token a wallet holds. OpenXSwitch Gas Station sponsors the rent deposit required to create these ATAs, removing the need for users to fund token account creation manually.

For the first `deposit` of a token into a wallet, `ATA` rent must be paid and can sometimes exceed `$0.20` depending on network conditions. Subsequent transfers for the same token reuse the existing ATA and do not require additional rent creation costs.

### Stellar Fee Sponsorship

Stellar transactions may require `account reserves`, `trustline reserves`, and transaction fees before wallets can interact with supported assets onchain. OpenXSwitch utilizes Stellar sponsorship infrastructure and `fee-bump` transactions to abstract these operational costs from users.

This allows wallets to receive assets and interact with the Stellar network without requiring users to pre-fund `XLM` for operational reserves or transaction execution.