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Introduction

Welcome to the Upside Developer Guides!

Here, you’ll find documentation, specifications, and tools designed to support seamless integration with Upside APIs and smart contracts.

  • Relayer API: Broadcast gasless batched ERC2771 meta-transactions for EVM Security Token.

  • EVM Security Token (v5): The latest version of Upside Security Token, which supports ownership snapshots instead of balance snapshots. Dividends contract is replaced with Interest Accrual one which provides ability to manage and distribute interest payments to token holders based on their token ownership over specific time periods.

  • EVM Security Token (v4): Version of Upside Security Token, which adds support for ERC2771 meta-transactions, automatic continuous snapshotting for dividends, and lazy minting.

  • EVM Security Token (v3): Upside Security Token, based on ERC20 and ERC1400 standards.

  • Solana Security Token: Solana implementaion of Upside Security Token, based on SPL Token and Token-2022 standards.