{"uid":"cap_pfeKUUQX8cRjC2MhYuM9W","slug":"ralph-crypto-summary-api-wallet-summary-9897ac38","name":"Ralph Crypto Summary API – Wallet Summary","description":"Pay-per-call crypto market and Base wallet summaries via x402 (USDC on Base).","url":"https://ralph-crypto-summary.simgokr.workers.dev/api/wallet-summary?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["address"],"properties":{"address":{"type":"string","description":"EVM address on Base (0x + 40 hex)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"address":"0x2E0c897CA643189948c5AF25eE27876DC788B4c6","network":"base","timestamp":"2026-09-19T00:00:00.000Z","eth_balance":"0.000000","usdc_balance":"10.11"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.05","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":"$0.05/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_MztKzAr4MeVHzv3feonPP","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.05","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns ETH and USDC balances for a given Base network EVM wallet address, paid per-call via x402 micropayments in USDC.","exampleAgentPrompt":"Can you pull up the ETH and USDC balances for the Base wallet 0x2E0c897CA643189948c5AF25eE27876DC788B4c6?","exampleUseCases":[{"title":"DeFi portfolio balance check","prompt":"What are the current ETH and USDC balances for my Base wallet at 0x2E0c897CA643189948c5AF25eE27876DC788B4c6?"},{"title":"Pre-transaction liquidity check","prompt":"Before I send a payment, can you check how much USDC is in the Base wallet 0xAbCd1234567890abcdef1234567890abcdef1234 so I know if there's enough to cover it?"},{"title":"Wallet monitoring for on-chain agent","prompt":"Check the ETH and USDC balance for the address 0x9F3a2E1c45D678Bb12340aF5679C0e1234567890 on Base and tell me if the balances have changed since yesterday."}],"resultDescription":"A JSON object containing the queried EVM wallet address, the network (Base), a timestamp, the ETH balance as a decimal string, and the USDC balance as a decimal string.","failureModes":["Invalid or malformed EVM address returns an error response","Payment failure via x402 (insufficient USDC, wrong network) blocks the call","Address not found on Base returns zero balances rather than an error","Network congestion on Base may cause stale or delayed balance data","Missing required 'address' query parameter results in a 400-level error"],"whenToPreferThis":"Choose this endpoint when you need a quick, on-demand balance snapshot for a specific Base network EVM address and are comfortable with micropayment-gated access via x402/USDC. Ideal for agents that already operate in the Base/USDC ecosystem and need lightweight wallet data without running a full node or managing an RPC subscription.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T12:35:39.901Z","isFirstParty":false,"canonicalSlug":"ralph-crypto-summary-api-wallet-summary-9897ac38"}