{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/ankr/refs/heads/main/json-schema/ankr-nft-asset-schema.json",
  "title": "Ankr NFT Asset",
  "description": "A single NFT asset as returned by Ankr Advanced API NFT methods (ankr_getNFTsByOwner, ankr_getNFTMetadata).",
  "type": "object",
  "required": ["blockchain", "contractAddress", "tokenId"],
  "properties": {
    "blockchain": {
      "type": "string",
      "description": "Ankr chain identifier (eth, bsc, polygon, arbitrum, ...)."
    },
    "name": { "type": "string" },
    "tokenId": { "type": "string" },
    "tokenUrl": { "type": "string", "format": "uri" },
    "imageUrl": { "type": "string", "format": "uri" },
    "collectionName": { "type": "string" },
    "symbol": { "type": "string" },
    "contractType": {
      "type": "string",
      "enum": ["ERC721", "ERC1155"]
    },
    "contractAddress": {
      "type": "string",
      "pattern": "^0x[a-fA-F0-9]{40}$"
    },
    "traits": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "trait_type": { "type": "string" },
          "value": {}
        }
      }
    }
  }
}