Token mint
Solana token metadata
Add or update a Solana token's name, symbol, and logo on-chain. Works for both classic SPL Token (via Metaplex) and Token-2022 (built-in metadata extension). For a token you are the mint or update authority of.
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How it works
Paste a token mint. SolKnife reads it and tells you whether metadata already exists, what it says, and whether your wallet can change it. Fill in the name, symbol, and a public URL to a JSON file (which you host) holding the image and description, then your wallet signs. SolKnife writes the right kind of metadata for the token program automatically and never handles your image or files. A small flat fee is shown before you sign.
- Metadata URI
- A link to a JSON file (which you host) holding the token's image and description. SolKnife writes the link on-chain but never hosts the file.
- Update authority
- The address allowed to change a token's metadata after it is created. SolKnife sets it to your wallet when it creates metadata.
- Immutable
- Locked metadata can never be changed again, by anyone. The lock is optional and permanent.
- Metaplex Token Metadata
- The original Solana metadata standard for fungible tokens and NFTs — a separate PDA account holds the metadata record alongside the mint. Used for classic SPL Token mints.
- Token-2022 metadata extension
- The newer in-mint metadata for Token-2022, stored inside the mint account itself instead of a separate PDA. Cheaper rent, but only available for Token-2022.
Frequently asked
- How do I add a name and symbol to my Solana token?
- Paste the mint address into this tool, connect the wallet that is the mint or update authority, fill in the name and symbol plus a public URL to a JSON file holding the image, then sign one transaction. SolKnife writes the right kind of metadata for the token program (Metaplex for SPL Token, the metadata extension for Token-2022) and never handles your image or files.
- Does this work for both SPL Token and Token-2022?
- Yes. Classic SPL Token mints use the Metaplex Token Metadata program (a separate PDA), and Token-2022 mints use their built-in metadata extension stored inside the mint. SolKnife reads the mint, picks the right path, and builds the transaction for you. You don't choose.
- Can I add a logo to a Solana token without writing any code?
- Yes — without leaving this page. Below the URI field there's a built-in builder: upload an image, add an optional description and socials, and SolKnife uploads the image to Arweave, generates the Metaplex-shape JSON, uploads that too, and fills the URI field for you. Your wallet pays Irys directly; nothing routes through SolKnife. Or, if you already have a JSON hosted elsewhere, paste its URL into the URI field as before.
- Can I update token metadata after I set it?
- Yes, as long as the metadata is not marked immutable and your wallet is the current update authority. The same tool handles updates: it reads the current state, you change individual fields, your wallet signs. Marking metadata immutable is one-way and permanent, so do that only when the branding is final.
- Why does my Solana token show as just an address in my wallet?
- Because no metadata is attached to the mint yet. Wallets and explorers render name, symbol, and image from the mint's metadata account; with none, all they have is the raw mint address. Adding metadata with this tool fixes the display within a block or two of confirmation.
- Do I need to be the mint authority to set metadata?
- For a token with no metadata yet, the mint authority creates the metadata record. For an existing record, the update authority changes it. SolKnife reads the mint and tells you which role you hold, and whether your wallet can make the change you want, before you sign.
- Where should I host the metadata JSON and image?
- Arweave is the conservative choice — permanent, content-addressed, one-time fee. IPFS via a pinning service (Pinata, Filebase) is also content-addressed and reliable. Your own HTTPS host works if you accept that a domain expiry or outage breaks every wallet's render of your token. SolKnife never hosts anything for you.
New to this? Read how to add metadata to a Solana token.