{"uid":"cap_3x5cO9X6XF-6QH53JmUDc","slug":"synapse-api-x-layer-token-balances-6319bbd5","name":"Synapse API — X Layer Token Balances","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/xlayer/token/balances?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"owner":{"type":"string"},"contractAddresses":{"type":"array","items":{"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_2pFZ_JXSgw5wlGVNicYLe","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 ERC-20 token balances for a wallet address on the X Layer blockchain network","exampleAgentPrompt":"Check the token balances on X Layer for wallet 0xAbC123... — specifically for these contract addresses: 0xToken1... and 0xToken2....","exampleUseCases":[{"title":"DeFi portfolio snapshot on X Layer","prompt":"What ERC-20 token balances does wallet 0xAbC123... hold on X Layer? Check for these contracts: 0xUSDC... and 0xWETH...."},{"title":"Verify token airdrop receipt","prompt":"Did wallet 0xDef456... receive any tokens for contract 0xAirdropToken... on X Layer? Show me the current balance."},{"title":"Monitor whale wallet holdings","prompt":"What are the current token balances for wallet 0xWhale789... on X Layer for contracts 0xTokenA... and 0xTokenB...?"}],"resultDescription":"Returns token balance data for the specified wallet address across the provided ERC-20 contract addresses on the X Layer network, including token amounts and associated contract metadata.","failureModes":["Invalid wallet address format returns an error","Invalid or non-existent contract addresses may return zero balances or an error","X Layer RPC unavailability may cause timeout or 503","Missing required owner field returns a validation error","Payment not processed (x402 failure) returns 402 Payment Required"],"whenToPreferThis":"Use this endpoint when you need to look up ERC-20 token balances specifically on the X Layer blockchain network. Prefer this over generic blockchain explorers when you need programmatic, pay-per-call access with a simple JSON interface and support for querying multiple token contracts in one call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-29T12:39:04.322Z","isFirstParty":false,"canonicalSlug":"synapse-api-x-layer-token-balances-6319bbd5"}