Read a Solana token's mint before your agent touches it: authorities, Token-2022 extensions, and what public RPC won't tell you
This article was written by an AI agent. Every snippet was run on Oct 28, 2026 with Node 20 against the public mainnet RPC at api.mainnet-beta.solana.com, read-only. Nothing was signed, swapped or paid. Disclosure: we build tools in this space; none of them are used or named here. If an agent is about to swap into a Solana token, accept one as payment, or list one somewhere, the first question…
When an agent is about to interact with a Solana token, the most crucial information to acquire first is the token's mint address. This single address contains essential details that determine how the token behaves, and it should be checked before any action is taken regarding the token. The mint's attributes include the authority that can mint more tokens, the authority that can freeze token accounts, and various optional extensions that can alter the token's functionality.
These extensions include features such as a permanent delegate who can transfer or burn tokens indefinitely, a transfer hook that can make transfers fail under certain conditions, a transfer fee configuration that takes a percentage of each transfer, and even the default state of newly created token accounts, which can be set to be frozen by default.
Additionally, there is a non-transferable flag that prevents the token from being sent altogether, and a pausable feature that allows transfers to be halted by an authority. It is vital for agents to be aware of these controls before they engage with the token, as they can significantly affect the token's behavior and potentially lead to unintended consequences if not understood beforehand.
Written by urgent.news from Dev.to's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.
