{"uid":"cap_rcPMIhv0aVtZf048CvzfT","slug":"phantom-api-base-nft-by-owner-9eb49a54","name":"Phantom API — Base NFT by Owner","description":"Lightning-fast access to blockchain data, smart contract insights, and Web3 infrastructure across 57+ networks. Pay-per-call via x402.","url":"https://phantom-api-omega.vercel.app/api/base/nft/by-owner","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"limit":{"type":"number"},"owner":{"type":"string"},"pageKey":{"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_YHk71PWqyvWX1Hv9XgP-D","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":"Retrieves all NFTs owned by a specific wallet address on the Base blockchain network","exampleAgentPrompt":"Can you pull up all the NFTs owned by the Base wallet 0x1234abcd...efgh — show me up to 50 at a time?","exampleUseCases":[{"title":"NFT portfolio audit for a wallet","prompt":"I want to see every NFT held by the Base wallet 0xAbCd1234... — can you list them all, fetching 25 at a time?"},{"title":"Verify NFT ownership for gating","prompt":"Does the wallet 0xDeAdBeEf... on Base actually own any NFTs? Fetch their full list so I can check before granting access."},{"title":"Paginate through large NFT collection","prompt":"The wallet 0x9988776655... on Base has tons of NFTs — start fetching them 100 at a time and give me the next page using the key from the last response."}],"resultDescription":"Returns a paginated list of NFTs owned by the specified wallet address on the Base network, including token metadata such as contract address, token ID, name, image, and a pagination key for fetching subsequent pages.","failureModes":["Invalid or malformed wallet address returns an error or empty result","Unrecognized pageKey causes pagination failure","Missing required 'owner' field results in a 400-level error","Rate limits or payment failures return a 402 response","Network downtime or Base indexer lag may cause stale or incomplete results"],"whenToPreferThis":"Use this endpoint when you need to enumerate all NFTs held by a specific wallet on the Base blockchain. Prefer this over generic NFT APIs when you specifically need Base network data and want pay-per-call pricing via x402 with no subscription overhead. Best for on-demand lookups in agent workflows where you need to verify ownership or audit a portfolio.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T13:03:35.179Z","isFirstParty":false}