{"uid":"cap_FybNn2Li-Ae9OSoDpKNCM","slug":"saylor-innovations-evm-wallet-balance-base-2fbff5e6","name":"Saylor Innovations EVM Wallet Balance (Base)","description":"EVM Wallet Balances (base). Base ERC-20 token balance and native ETH balance for any wallet: up to 20 ERC-20 tokens (?tokens=) in one call, with symbols, decimals and human-readable amounts. Live chain head.","url":"https://saylorinnovations.com/api/evm/base/balance/:address?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":null,"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","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_y8RCFH8Sj-0lfKEE_m3Io","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the native token balance of an EVM wallet address on the Base blockchain network","exampleAgentPrompt":"What's the current native token balance on Base for wallet address 0x742d35Cc6634C0532925a3b8D4C9B2f4B6F1e2d3?","exampleUseCases":[{"title":"DeFi portfolio balance check","prompt":"Can you look up the on-chain ETH balance for my Base wallet at 0x742d35Cc6634C0532925a3b8D4C9B2f4B6F1e2d3 so I know how much native token I have available?"},{"title":"Automated wallet monitoring alert","prompt":"Check the Base chain balance for address 0xAbCd1234567890EFabcd1234567890EFabcd1234 — I want to know if there are any funds sitting there before I proceed."},{"title":"User onboarding balance verification","prompt":"Verify whether the Base network wallet 0x9f8e7d6c5b4a3210fedcba9876543210fedcba98 has a non-zero native balance so we can confirm the user has funded their account."}],"resultDescription":"Returns the on-chain native token balance (e.g. ETH on Base) for the specified EVM wallet address, reflecting the current state of the Base blockchain at query time.","failureModes":["Invalid or malformed wallet address returns an error response","Address with no transaction history may return zero balance","Network congestion or RPC node issues may cause delayed or failed lookups","Non-EVM or non-Base addresses will not return valid data"],"whenToPreferThis":"Choose this endpoint when you specifically need the native token balance of an EVM-compatible wallet on the Base network (Coinbase's L2). It is ideal for agents building DeFi dashboards, verifying user wallet funding, or monitoring on-chain balances without needing a full blockchain node. Prefer this over generic block explorer scraping when you need a simple, paid, programmatic lookup at low cost ($0.003 per call).","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-03T00:48:46.905Z","isFirstParty":false,"canonicalSlug":"saylor-innovations-evm-wallet-balance-base-2fbff5e6"}