Metadata
Questions? Contact us at www.crossmint.com/support
Polygon
On Polygon, this API is designed to handle requests based on the ERC-1155 metadata standard. The fields that are strictly required to be set in requests are name
and image
, but in order for your NFT to be supported on other third-party sites it is recommended to follow the ERC-1155 standard.
Rich metadata on ERC721 & ERC1155 NFT's:
The Mint API natively supports rich metadata within ERC 721 and ERC 1155, including audio, video and/or HTML. Populate the animation_url field as per the OpenSea metadata spec: Metadata Structure
Solana
All fields specified in the MetadataJson
interface defined here are supported by this API.
Example usage:
...
"recipient": "sol:3Q5Ua7XQCdFZhgQGiDCzbLLJnx4AzfE658JvPQALxMSs"
"metadata": {
"name": "TEST NFT",
"symbol": "TESTS",
"description": "This is a test NFT",
"seller_fee_basis_points": 5000,
"image": "https://www.arweave.net/I5Hh_7aHWH21giaelic-Tah1p3kwA71fFur4yw5Bcls?ext=png",
"attributes": [
{
"trait_type": "sun_size",
"value": "l"
},
{
"trait_type": "sun_pos",
"value": "center"
},
{
"trait_type": "terrain",
"value": "flat"
},
{
"trait_type": "palette",
"value": "oliveth"
},
{
"trait_type": "random_seed",
"value": 61
},
{
"trait_type": "rings",
"value": 1
},
{
"trait_type": "star_intensity",
"value": "high"
},
{
"trait_type": "moons",
"value": 2
},
{
"trait_type": "weather",
"value": "none"
},
{
"trait_type": "wormholes",
"value": "1236,735"
},
{
"trait_type": "gravity",
"value": "normal"
}
],
"properties": {
"files": [
{
"uri": "https://www.arweave.net/I5Hh_7aHWH21giaelic-Tah1p3kwA71fFur4yw5Bcls?ext=png",
"type": "image/png"
}
],
"category": "image",
"creators": [
{
"address": "5aBAsMczPrsduMuKBTwbae7SWy5JiMLxVCfzAdYeUFU",
"share": 100
}
]
}
},
...
Updated 18 days ago