{"uid":"cap_1T1H1dTmzqgBQbwNPoEqJ","slug":"x402-bazaar-address-intel-7d09c411","name":"x402 Bazaar Address Intel","description":"EOA vs contract, ETH + USDC balance, transaction count and activity level — straight from Base RPC. Useful for counterparty and wallet checks. Paid via x402: $0.01 in USDC on Base (eip155:8453) to 0x973a31858f4d2125f48c880542da11a2796f12d6. Returns 402 with payment requirements; pay and retry.","url":"https://api.relai.fi/relay/1782567677091/api/x402/address-intel","method":"POST","headers":{},"bodySchema":{"type":"object","$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"},"pathParams":{"type":"object"},"queryParams":{"type":"object","required":["address"],"properties":{"address":{"type":"string","description":"Address"}}}},"additionalProperties":false}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","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_AesEUu5vega2dIL0gfV4x","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":"Returns EOA vs contract classification, ETH and USDC balances, transaction count, and activity level for a Base blockchain address via Base RPC.","exampleAgentPrompt":"Can you check the on-chain profile for Base address 0xAbC123...? I want to know if it's an EOA or contract, its ETH and USDC balances, and how active it's been.","exampleUseCases":null,"resultDescription":"Returns a structured profile of the queried Base address including: whether it is an EOA or smart contract, current ETH balance, current USDC balance, total transaction count, and an activity level indicator — all sourced directly from Base RPC.","failureModes":["402 Payment Required — must pay $0.01 USDC on Base to 0x973a31858f4d2125f48c880542da11a2796f12d6 and retry","Invalid address format — address does not conform to EIP-55 checksummed format","Address not found / zero activity — valid address with no on-chain history returns zeroed fields","RPC timeout — Base RPC node unavailable or slow, resulting in a 503 or timeout error","Rate limiting — too many requests without valid payment headers"],"whenToPreferThis":"Use this endpoint when you need a quick counterparty check on a Base wallet — specifically to distinguish EOA from contract, verify ETH/USDC holdings, or gauge wallet activity level before a transaction or integration. Prefer this over full blockchain explorers when you need a lightweight, programmatic, single-call summary rather than full transaction history.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:52:47.205Z","isFirstParty":false}