Update List of NFT Metadata

  1. Get your NFT mint list using metaboss snapshot or another tool.
  2. Decode all the metadata into files using metaboss decode mint -L <NFT_MINT_LIST_FILE> --full -o <DATA_FILES_DIR>.
  3. Update the specific data you want changed in each file in the <DATA_FILES_DIR>.
  4. Update the NFTs with metaboss update data-all -d <DATA_FILES_DIR>.

Note: many fields have specific update <field>-all commands which are easier to use as they don't require updating a bunch of metadata files manually. Check the update and set sections first to see if they have what you need.