Minimum Requirements
Starting with the basics.
The standard only declares data. The warranty to agree and comply this specifications correspond to a smart contract, and correct execution from marketplaces or sites accessing it.
Mandatory Layer
Compatible with Metaplex tools, OpenSea, Magic Eden and other marketplaces.
Helpful note
These minimum requirements should be provided by your minting engine regardless of the chain you're minting in. You can use this as a guide to ensure you have all fields required.
| Syntax | Description |
|---|---|
| name | Name of the item. |
| description | A human readable description of the item. Markdown is supported. |
| image | This is the URL to the image of the item. Can be just about any type of image, and can be IPFS URLs or paths. We recommend using a 350 x 350 image. |
| external_url | This is the URL to view the item on your site. |
| symbol | A three to five letter combination that's unique to this NFT |
| seller_fee_basis_points | A numeric value. Percentage of royalties to be shared in creators key inside properties key (old nft model) “1000” means 10,00% |
| edition | Use "0" for first editions. Change for derivative albums or re-editions. |
| animation_url | A URL to a multi-media attachment for the item. The file extensions GLTF, GLB, WEBM, MP4, M4V, OGV, and OGG are supported, along with the audio-only extensions MP3, WAV, and OGA. Animation_url also supports HTML pages, allowing you to build rich experiences and interactive NFTs using JavaScript canvas, WebGL, and more. Scripts and relative paths within the HTML page are now supported. However, access to browser extensions is not supported. |
| youtube_url | A URL to a YouTube video. |
JSON example for minimum requirements (layer 1 metadata)
NFT minimum requirements
{
"name": "Correct Tempo",
"description": "Plazma Records first NFT compilation album. For techno fans that want to earn revenue",
"image": "0.jpg",
"external_url": "https://www.soundpickr.com/",
"symbol": "BOB",
"seller_fee_basis_points": 500,
"edition": 0,
}
Consider this example for image based NFTs.