{"uid":"cap_rZ3VzBA10qAJZBIJzQAeF","slug":"free-asset-radar-x402-erc-1155-balance-lookup-32660fd6","name":"Free Asset Radar x402 – ERC-1155 Balance Lookup","description":"Stable edge-hosted x402 utilities for autonomous agents.","url":"https://free-asset-radar-x402.besenok2018.workers.dev/api/x402/erc1155-balance?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"required":{"type":"string"},"properties":{"type":"string"}}},"responseSchema":{"type":"json","example":{"uri":"ipfs://...","balance":"1","network":"polygon"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","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":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_ud5XrA3UE4djOfroE2tjN","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the ERC-1155 token balance and metadata URI for a given wallet address and token ID on a specified blockchain network.","exampleAgentPrompt":"Can you check how many of ERC-1155 token ID 42 from contract 0xABC...123 the wallet 0xDEF...456 holds on Polygon, and give me the metadata URI?","exampleUseCases":[{"title":"NFT gate ownership verification","prompt":"Does wallet 0xDEF...456 own at least one of ERC-1155 token ID 7 from contract 0xABC...123 on Polygon? I need to decide whether to grant them access."},{"title":"Game item inventory check","prompt":"How many of game item token ID 99 (contract 0x111...AAA) does player wallet 0x222...BBB hold on Polygon right now?"},{"title":"Fetch NFT metadata for display","prompt":"Pull the metadata URI for ERC-1155 token ID 5 from contract 0x333...CCC on Polygon so I can display the artwork and attributes for wallet 0x444...DDD."}],"resultDescription":"Returns a JSON object containing the token balance (as a string integer), the metadata URI (e.g. ipfs://...), and the network name (e.g. 'polygon') for the queried wallet, contract, and token ID combination.","failureModes":["Invalid or malformed wallet/contract address returns an error","Unsupported network identifier returns a lookup failure","Token ID not found in contract returns zero balance or error","Network RPC unavailability causes timeout or 5xx response","Missing required parameters (address, tokenId, contract) results in 400 Bad Request"],"whenToPreferThis":"Choose this endpoint when you need a lightweight, pay-per-call ERC-1155 balance and metadata URI lookup without managing your own blockchain RPC infrastructure. It is ideal for autonomous agents that need on-demand multi-token balance checks on networks like Polygon, especially when integrated into x402 payment flows.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-17T18:34:27.455Z","isFirstParty":false,"canonicalSlug":"free-asset-radar-x402-erc-1155-balance-lookup-32660fd6"}