Skip to content
Fundamental Concepts

SPL Token

Token fungível emitido na rede Solana segundo o padrão SPL, análogo ao ERC-20 no Ethereum, com regras comuns de emissão, transferência e queima.

Key points

  • SPL Token is a fungible token issued on the Solana network following the SPL standard, that network's set of token rules.
  • It is Solana's analogue of the ERC-20 standard on the Ethereum network: it defines common behavior for fungible tokens.
  • Following the standard ensures that wallets, exchanges, and applications on the network recognize and operate the token without adaptations.

What is an SPL Token?

SPL Token is a fungible token created on the Solana network according to the SPL standard, short for Solana Program Library. Fungible means each unit is identical and interchangeable with the others, as is the case with currencies and most stablecoins. The standard defines how these tokens are created, transferred, and managed, ensuring they behave predictably within the Solana ecosystem.

How it works

The standard establishes a common set of operations for the network's fungible tokens, such as issuing new units, transferring balances, checking amounts, and removing units from circulation through burning. By following these rules, an SPL Token becomes compatible with the network's entire infrastructure: any wallet, decentralized exchange, or application that supports the standard can recognize and operate the token without needing special handling for it.

The comparison with the ERC-20 standard on the Ethereum network is useful. Both fulfill the same role on their respective networks: providing a common foundation for fungible tokens, so that different assets work in a uniform way. An SPL Token on Solana is, in spirit, equivalent to an ERC-20 token on Ethereum, even though the technical details and internal workings of each network differ.

In practice, many stablecoins and other assets available on Solana exist as SPL Tokens, taking advantage of the network's high speed and low transaction cost. Like any token standard, SPL Token only defines the technical behavior of the asset, saying nothing about its value or soundness, which depend on the project behind it. It is worth remembering that operating these tokens requires some SOL, the native currency, to pay the network's fees.

Understanding SPL Token helps in understanding how fungible assets circulate in a standardized way on Solana.

Why it matters

Understanding SPL Token helps in understanding how fungible tokens, including stablecoins, work on the Solana network and why they are broadly compatible with wallets and services. For those operating or integrating assets on this network, it is a practical concept. This is a technical concept, and none of this represents a recommendation to trade or operate.

Risks and limitations

Following the SPL standard ensures technical compatibility, but it does not attest to a token's value or safety; any project can issue an SPL Token. The standard is specific to Solana, so these tokens do not circulate directly on other networks without additional mechanisms. Operating them requires holding SOL for fees. None of this represents a recommendation to trade or operate.