{"uid":"cap_nBBahjRGNuX-ks5w6cGJA","slug":"x402-blocksec-ai-c50d066a","name":"BlockSec Ethereum Address Label Lookup","description":"Fetch human-readable labels and metadata for an Ethereum address to identify known wallets, contracts, and entities.","url":"https://x402.blocksec.ai/label/eth/0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045","method":"POST","headers":{},"bodySchema":{"type":"object","required":["address"],"properties":{"address":{"type":"string"}}},"responseSchema":{"type":"object","required":["_x402","error","accepts","resource","x402Version","_paymentRequired","_wwwAuthenticate"],"properties":{"_x402":{"type":"boolean"},"error":{"type":"string"},"accepts":{"type":"array","items":{"type":"object","required":["asset","extra","payTo","amount","scheme","network","maxTimeoutSeconds"],"properties":{"asset":{"type":"string"},"extra":{"type":"object","required":["name","version"],"properties":{"name":{"type":"string"},"version":{"type":"string"}}},"payTo":{"type":"string"},"amount":{"type":"string"},"scheme":{"type":"string"},"network":{"type":"string"},"maxTimeoutSeconds":{"type":"number"}}}},"resource":{"type":"object","required":["url","mimeType","description"],"properties":{"url":{"type":"string"},"mimeType":{"type":"string"},"description":{"type":"string"}}},"x402Version":{"type":"number"},"_paymentRequired":{"type":"boolean"},"_wwwAuthenticate":{"type":"null"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"1e-7","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"unknown_unparsed","priceSource":"unknown","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":"unknown","summary":"price unknown","primary":{"kind":"unknown","protocol":"x402","network":"base","amountUsd":null,"per":"call","confidence":"unknown"},"accepted":[{"kind":"unknown","protocol":"x402","network":"base","amountUsd":null,"per":"call","confidence":"unknown"}]},"paymentMethods":[{"uid":"pm_mCYPeCAW1epnlNwE6Io3W","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"1e-7","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches human-readable labels and metadata for an Ethereum address to identify known wallets, contracts, and entities.","exampleAgentPrompt":"Can you look up the label and entity information for the Ethereum address 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 — I want to know what wallet or project it belongs to?","exampleUseCases":null,"resultDescription":"Returns human-readable labels and metadata for the queried Ethereum address, including entity name, wallet type classification, associated project or protocol, and any relevant tags identifying whether it's a known exchange, DeFi contract, EOA, or other entity.","failureModes":["Payment not provided or insufficient — returns 402 payment_required with accepted payment schemes","Invalid Ethereum address format — likely returns 400 or validation error","Address not found in label database — returns empty or null label fields","Network or service unavailability — returns 5xx error"],"whenToPreferThis":"Use this endpoint when you need to enrich an Ethereum address with human-readable identity information — particularly useful for compliance, analytics, or UX scenarios where raw hex addresses need to be resolved to known entities. Prefer this over generic blockchain explorers when you need structured, machine-readable label metadata rather than a web page. Best for Ethereum mainnet address identification.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:40:26.822Z","isFirstParty":false}