Solana token
lookup.
▸ /reference — common SPL decimals
▸ /notes
mint authority is active, someone can mint more of the token at any time — supply is not capped. If it's revoked (null), the current supply is permanent. The same logic applies to freeze authority: an active value means the issuer can freeze any holder's account.getAccountInfo RPC call, server-side, with a 5-minute cache. Mint state changes rarely, so even popular tokens hit the upstream RPC at most a handful of times per hour regardless of traffic.▸ /faq
Why do SPL tokens not show name and symbol here?
On-chain SPL mints store decimals, supply, and authorities — but not name or symbol. Those live in a separate Metaplex Metadata account. Reading them requires deriving a program-derived address (PDA), which needs ed25519 math beyond this page's scope.
What is mint authority?
The address allowed to mint new tokens into circulation. If it's null, the supply is permanently capped — minting is disabled. Stablecoins typically keep mint authority active; capped tokens like fixed-supply NFTs revoke it.
What is freeze authority?
The address allowed to freeze any token account holding this mint, blocking transfers. Most user-facing tokens have it null. USDC and USDT keep it active for compliance reasons.
What's the difference between SPL Token and Token-2022?
Token-2022 is a newer program with optional extensions (transfer fees, confidential transfers, interest bearing tokens, etc.). It's a superset of SPL Token — most simple tokens still use the original program for compatibility.