v1
latestOpenAPI 3.1.02026-07-24130315342.2 KBNFT Endpoints
Validate NFT metadata
Fetch and validate NFT metadata directly from the blockchain without using cached data. Returns both original and processed (SeaDN) URLs to show how the metadata would be ingested. This endpoint does not persist any data.
post/api/v2/chain/{chain}/contract/{address}/nfts/{identifier}/validate-metadata
Path parameters
chain'blast' | 'base' | 'ethereum' | 'zora' | 'arbitrum' | 'sei' | 'avalanche' | 'polygon' | 'optimism' | 'ape_chain' | 'flow' | 'b3' | 'soneium' | 'ronin' | 'bera_chain' | 'solana' | 'shape' | 'unichain' | 'gunzilla' | 'abstract' | 'animechain' | 'hyperevm' | 'somnia' | 'monad' | 'hyperliquid' | 'megaeth' | 'ink' | 'robinhood' required
Blockchain chain identifier. Use the chain slug (e.g., 'ethereum', 'polygon', 'arbitrum', 'optimism', 'base')
Example:ethereum
The blockchain on which to filter the results
addressstring required
The contract address
identifierstring required
The NFT token id
Query parameters
ignoreCachedItemUrlsboolean
Whether to bypass cached SeaDN URLs
Response
OK