{"uid":"cap_JGpXsBFGPslu2TEMdaoeJ","slug":"synapse-api-worldchain-nft-metadata-lookup-c40b52ce","name":"Synapse API — Worldchain 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/worldchain/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_CmqAolvJp6ogTMRJAhDq5","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 NFT metadata for a given token ID and contract address on the Worldchain blockchain network.","exampleAgentPrompt":"Can you pull up the metadata for token ID 42 from the Worldchain NFT contract at address 0x1234abcd...efgh — I want to see its name, image, and attributes?","exampleUseCases":[{"title":"NFT trait lookup for rarity analysis","prompt":"I need the full metadata for token ID 1337 from the Worldchain NFT contract 0xabc123... — can you get me its traits and attributes so I can check its rarity?"},{"title":"NFT gallery display info retrieval","prompt":"Fetch the name, description, and image URL for token ID 7 from the Worldchain contract at 0xdeadbeef... so I can display it in my NFT gallery."},{"title":"NFT ownership verification enrichment","prompt":"I have a Worldchain NFT — contract 0x999fff..., token ID 500 — can you grab its metadata to confirm what this token actually is before I list it for sale?"}],"resultDescription":"Returns structured NFT metadata for the specified token on Worldchain, typically including the token name, description, image URL, external URL, and an array of trait/attribute key-value pairs as stored on-chain or via the token URI.","failureModes":["Invalid or non-existent contract address returns an error or empty response","Token ID does not exist on the contract — returns not found or null metadata","Worldchain RPC/node unavailability causes timeout or 500 error","Malformed contract address format causes validation error","Payment failure via x402 protocol results in 402 Payment Required"],"whenToPreferThis":"Use this endpoint when you specifically need NFT metadata from the Worldchain network and want a pay-per-call model with no subscription overhead. Prefer this over general-purpose blockchain explorers when Worldchain-specific lookups are needed and cost-per-call via USDC micropayments (x402) is acceptable.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T07:05:45.859Z","isFirstParty":false}