A non-transferable token permanently bound to a specific wallet, representing identity, credentials, achievements, or reputation. On Solana, soulbound tokens can be primarily implemented using Token-2022's non-transferable extension or transfer hooks that reject transfers, which prevents any transfer after minting. Used for proof of attendance, skill certifications, and on-chain identity.
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A non-transferable token permanently bound to a specific wallet, representing identity, credentials, achievements, or reputation. On Solana, soulbound tokens can be primarily implemented using Token-2022's non-transferable extension or transfer hooks that reject transfers, which prevents any transfer after minting. Used for proof of attendance, skill certifications, and on-chain identity.
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SPL assets, token standards, metadata, and NFT primitives.
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Soulbound Token (SBT) (soul-bound-token) Category: Token Ecosystem Definition: A non-transferable token permanently bound to a specific wallet, representing identity, credentials, achievements, or reputation. On Solana, soulbound tokens can be primarily implemented using Token-2022's non-transferable extension or transfer hooks that reject transfers, which prevents any transfer after minting. Used for proof of attendance, skill certifications, and on-chain identity. Aliases: SBT, Soulbound NFT Related: Non-Transferable Token, Token-2022 (Token Extensions), NFT (Non-Fungible Token)
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A Token-2022 extension that prevents tokens from being transferred between accounts, making them soulbound. Non-transferable tokens can only be minted to and burned from accounts. Use cases include achievement badges, identity credentials, governance participation tokens, and certifications.
The next-generation token program (TokenzQdBNbLqP5VEhdkAS6EPFLC1PHnBqCXEpPxuEb) that extends SPL Token with configurable extensions. Extensions include transfer fees, confidential transfers, transfer hooks, permanent delegate, non-transferable tokens, interest-bearing tokens, metadata, and more. Token-2022 is backwards-compatible with SPL Token for basic operations.
A non-fungible token on Solana—an SPL token with 0 decimals, supply of 1, and revoked mint authority. The NFT's metadata (image, attributes) is stored off-chain (Arweave/IPFS) linked via the Metaplex metadata account's URI field. NFTs can be standard, compressed (cNFT), programmable (pNFT), or Core assets, each with different trade-offs.
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An SPL program that implements a constant-product AMM (x*y=k) for swapping between two SPL tokens. It was one of the first DeFi primitives on Solana but has been largely superseded by more sophisticated DEXs like Raydium, Orca, and Meteora. The program manages liquidity pools and issues LP tokens to liquidity providers.
A non-fungible token on Solana—an SPL token with 0 decimals, supply of 1, and revoked mint authority. The NFT's metadata (image, attributes) is stored off-chain (Arweave/IPFS) linked via the Metaplex metadata account's URI field. NFTs can be standard, compressed (cNFT), programmable (pNFT), or Core assets, each with different trade-offs.
The next-generation token program (TokenzQdBNbLqP5VEhdkAS6EPFLC1PHnBqCXEpPxuEb) that extends SPL Token with configurable extensions. Extensions include transfer fees, confidential transfers, transfer hooks, permanent delegate, non-transferable tokens, interest-bearing tokens, metadata, and more. Token-2022 is backwards-compatible with SPL Token for basic operations.
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A Token-2022 extension that prevents tokens from being transferred between accounts, making them soulbound. Non-transferable tokens can only be minted to and burned from accounts. Use cases include achievement badges, identity credentials, governance participation tokens, and certifications.
The next-generation token program (TokenzQdBNbLqP5VEhdkAS6EPFLC1PHnBqCXEpPxuEb) that extends SPL Token with configurable extensions. Extensions include transfer fees, confidential transfers, transfer hooks, permanent delegate, non-transferable tokens, interest-bearing tokens, metadata, and more. Token-2022 is backwards-compatible with SPL Token for basic operations.
A non-fungible token on Solana—an SPL token with 0 decimals, supply of 1, and revoked mint authority. The NFT's metadata (image, attributes) is stored off-chain (Arweave/IPFS) linked via the Metaplex metadata account's URI field. NFTs can be standard, compressed (cNFT), programmable (pNFT), or Core assets, each with different trade-offs.
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The original Solana Program Library token program (TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA) that implements fungible and non-fungible token operations. It manages mints (token definitions) and token accounts (balances). Core instructions include InitializeMint, MintTo, Transfer, Burn, Approve (delegation), and Revoke. All SPL tokens on mainnet before Token-2022 use this program.
Solana Program Library—a collection of on-chain programs and client libraries maintained by Solana Labs. Key SPL programs include Token, Token-2022, Associated Token Account, Memo, Name Service, Stake Pool, and Account Compression. SPL programs are deployed to well-known addresses and serve as the standard building blocks for Solana applications.
The next-generation token program (TokenzQdBNbLqP5VEhdkAS6EPFLC1PHnBqCXEpPxuEb) that extends SPL Token with configurable extensions. Extensions include transfer fees, confidential transfers, transfer hooks, permanent delegate, non-transferable tokens, interest-bearing tokens, metadata, and more. Token-2022 is backwards-compatible with SPL Token for basic operations.
An on-chain account defining a token type. A mint specifies: supply (total minted), decimals (0 for NFTs, 6 for USDC, 9 for most tokens), mint authority (who can mint), and optional freeze authority. Each unique token (USDC, JitoSOL, etc.) has exactly one mint account. Mint address serves as the token's unique identifier.