{"uid":"cap_gxRu6bYs2p5EvH6Sqkg7s","slug":"synapse-api-unichain-nft-metadata-lookup-24243e41","name":"Synapse API — Unichain NFT Metadata Lookup","description":"High-speed API suite for AI processing, web scraping, and smart data utilities across 57+ blockchain networks. Pay-per-call via x402.","url":"https://synapse-api-brown.vercel.app/api/unichain/nft/metadata","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"tokenId":{"type":"string"},"contractAddress":{"type":"string"}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_NuBFJp3jiqDqG9PS6aJpp","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches on-chain NFT metadata for a given token ID and contract address on the Unichain network","exampleAgentPrompt":"Can you pull the metadata for token ID 42 from the NFT contract 0xAbC1234...5678 on Unichain — I want to see the name, image, and any traits.","exampleUseCases":[{"title":"NFT trait inspection for rarity ranking","prompt":"Fetch the metadata for token ID 888 from the Unichain NFT contract 0xDEADBEEF00000000000000000000000000000001 — I need the traits and attributes so I can rank its rarity."},{"title":"NFT gallery display data","prompt":"I'm building a gallery page. Can you grab the image URL, name, and description for token ID 5 from the contract 0x1111111111111111111111111111111111111111 on Unichain?"},{"title":"Verify NFT ownership details before sale","prompt":"Before I list this NFT for sale, pull the full metadata for token 200 at contract 0xABCDEF0000000000000000000000000000000002 on Unichain so I can confirm the name and attributes are correct."}],"resultDescription":"Returns structured NFT metadata for the specified token, typically including the token name, description, image URL, external URL, and an array of attributes/traits as defined by the NFT contract's metadata standard (ERC-721/ERC-1155 compatible JSON).","failureModes":["Invalid contract address format returns a validation error","Token ID does not exist on the contract returns a not-found error","Contract is not an NFT contract or does not implement metadata URI returns an empty or error response","Unichain RPC node unavailable causes a timeout or 503 error","Metadata URI points to an unreachable IPFS or HTTP resource, resulting in empty metadata fields"],"whenToPreferThis":"Choose this endpoint when you specifically need NFT metadata from the Unichain network and want pay-per-call pricing without a subscription. It covers the full 57+ blockchain suite under Synapse API but this path is dedicated to Unichain NFTs, making it more targeted than a general multi-chain NFT metadata resolver.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T06:53:56.027Z","isFirstParty":false}