{"uid":"cap_5_bRkHgqx4bcj7bRG5PEf","slug":"limitguard-blockchain-wallet-verification-6641c162","name":"LimitGuard Blockchain Wallet Verification","description":"MCP tool: Screen a wallet: OFAC SDN address match, on-chain signals (contract check, native and USDC balance, transaction count, first seen on Base) and named risk rules with up to 3 advice items. On Base, also reports any ERC-8004 agent the wallet owns and its open on-chain reputation as descriptive signals, never scored. $0.11. Accepts EVM (0x...) and Solana (base58) addresses.","url":"https://api.limitguard.ai/v1/mcp/verify-wallet?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"chain_id":{"type":"string","description":"CAIP-2 chain ID (default: eip155:8453); base, eth, solana, btc also accepted"},"wallet_address":{"type":"string","description":"Blockchain wallet address"}}},"responseSchema":{"type":"json","example":{"advice":[{"why":"no OFAC SDN match as of 2026-09-23; no rule fired","action":"proceed with standard monitoring","expected_result":"re-screen on material change"}],"sanctions":{"hit":false,"as_of":"2026-09-23","lists":[],"source":"ofac_sdn","status":"ok","programs":[]},"risk_level":"low","risk_score":0,"rules_fired":[],"unavailable":[]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.1","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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":"$0.1/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.11","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.11","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_7wXHxzhpbEoNXKLjoJkGa","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.11","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Verifies a blockchain wallet address by checking on-chain activity and returning risk flags and an activity score","exampleAgentPrompt":"Before I send payment, can you verify that the wallet address 0x742d35Cc6634C0532925a3b844Bc454e4438f44e on Base (eip155:8453) is safe — check its on-chain activity and flag any risk issues?","exampleUseCases":null,"resultDescription":"Returns a JSON object with: wallet_valid (boolean indicating if the address is a valid, active wallet), activity_score (0-100 integer reflecting on-chain engagement), and risk_flags (array of risk indicators such as sanctions hits, mixer usage, or suspicious patterns)","failureModes":["Invalid wallet address format returns validation error","Unsupported chain_id returns error or defaults to eip155:8453","Wallet with no on-chain history may return low activity_score with empty risk_flags","Payment failure (insufficient USDC balance) blocks the request","Newly deployed wallet may have limited data, reducing confidence in results"],"whenToPreferThis":"Use this endpoint when you need a fast, lightweight on-chain risk check for a specific wallet address before executing a transaction, onboarding a counterparty, or screening an agent wallet. Prefer this over full entity compliance checks when you have a wallet address (not a name/company) and need a binary validity signal plus risk flags without a full KYB/KYC report.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-10T18:34:57.093Z","isFirstParty":false,"canonicalSlug":"limitguard-blockchain-wallet-verification-6641c162"}