Smeltrbeta

Smeltr is in public beta. Token deployments are real and permanent on Solana mainnet. All transactions are signed by your wallet — Smeltr never holds your keys or funds. Use at your own risk. Not financial advice.

Blog

Guides and deep dives on Solana Token-2022 extensions.

ReferenceJuly 1, 2026 · 12 min read

Token-2022 module configuration: the complete reference

Every extension parameter, valid range, authority field, compatibility rule, and security implication — Transfer Fee, Non-Transferable, Permanent Delegate, and on-chain metadata in one page.

TutorialJune 22, 2026 · 8 min read

How to deploy a Solana Token-2022 token with transfer fees

A complete guide to the Token-2022 TransferFeeConfig extension — what it does, how it works technically, and how to deploy one without writing code.

Deep DiveJune 29, 2026 · 6 min read

Soul-bound tokens on Solana: the Non-Transferable extension explained

What soul-bound tokens are, why they matter for credentials and loyalty programmes, and how to deploy a non-transferable SPL token using Token-2022.

Deep DiveJune 30, 2026 · 7 min read

Permanent Delegate: the most powerful (and misunderstood) Token-2022 extension

Permanent Delegate lets a designated address transfer or burn tokens from any holder's account. Here's exactly what that means, when it's legitimate, and how to use it safely.