This feature is under active development. Implementation details may evolve as we validate approaches for performance, security, and compatibility.

Plasma allows users to pay for any transaction using whitelisted ERC-20 tokens like USD₮ or BTC. There is no need to hold or manage the native token (XPL). This improves UX while preserving full EVM compatibility.

The feature is powered by a protocol-managed ERC-20 paymaster maintained by Plasma. Developers do not need to run or integrate their own gas abstraction logic. Wallets can support stablecoin-native flows with minimal changes.

​
Why it Matters

Most chains still require users to hold a native token for gas. This breaks the user experience for stablecoin-first apps.

External paymasters attempt to solve this, but they introduce their own tradeoffs:

  • They often charge a fee or markup
  • Pricing and access controls are inconsistent
  • Reliability depends on third-party funding and uptime

Plasma takes a different approach. The protocol operates a standard EIP-4337 paymaster that enables seamless, fee-free gas payments in stablecoins. This removes friction for users and avoids complexity for developers.

​
How it Works

  1. Token selection:

    The user selects an approved stablecoin such as USD₮ or BTC.

  2. Oracle pricing:

    The paymaster calculates the equivalent gas cost using trusted oracle rates.

  3. Approval:

    The user pre-approves the paymaster to spend the required amount.

  4. Execution:

    The paymaster covers gas in XPL and deducts the stablecoin from the user.

This flow works with both standard EVM accounts and EIP-4337 smart wallets.

​
Developer Integration

There is no custom logic required. To support custom gas tokens:

  • Use any standard account or smart wallet
  • Request token approval for the paymaster
  • Submit transactions through the supported interface

The Plasma paymaster handles gas payment, pricing, and enforcement behind the scenes.

​
Supported Tokens

Initial support includes:

  • USD₮ on Plasma
  • BTC bridged via pBTC

Additional stablecoins may be added over time based on usage, liquidity, and volatility.

​
Why it Lives in the Protocol

Fee abstraction is hard to standardize when left to individual teams. By operating this infrastructure directly, Plasma can:

  • Guarantee consistent behavior across apps
  • Offer fee-free gas payments with no markup
  • Enforce access rules and rate limits
  • Align incentives with the network’s goals

This lets developers focus on their product logic, while users benefit from a seamless stablecoin-native experience.