{"id":"47bb8dc1-d133-46f7-932b-4bdebbf809a4","shortId":"m6JMEk","kind":"x402","title":"Find wallets related to a blockchain address through on-chain interactions via Nansen's profiler API.","tagline":"Find wallets related to a blockchain address through on-chain interactions via Nansen's profiler API.","description":"This endpoint returns wallets that are related to a given blockchain address through various types of on-chain interactions and relationships. It is part of Nansen's Profiler suite and accepts a POST request with an address and chain parameter. The response includes detailed information about each related wallet: the relationship type, transaction details, timing information, and address labels.\n\nThe endpoint supports 24 chains including Ethereum, Solana, Bitcoin, Base, Arbitrum, Polygon, and others. Results are paginated (up to 1000 per page) and can be sorted by a default ordering field. The x-payment-info in the OpenAPI spec indicates a fixed price of $0.01 per call via the x402 protocol, and the probe confirmed the endpoint is live (HTTP 402 challenge returned). Credit costs are 10 credits on the free tier and 1 credit on the pro tier.\n\nThis is useful for wallet clustering, compliance investigations, identifying funding sources, and mapping entity relationships across blockchains. The related-wallets data complements other Nansen profiler endpoints like counterparties, transactions, balances, and PnL analysis.","tags":[],"capabilities":["wallet-relationship-mapping","address-profiling","multi-chain-support","on-chain-graph-analysis","x402-payment","paginated-results"],"categories":["blockchain-analytics","profiler"],"synonyms":["related wallets","wallet clustering","address graph","wallet connections","on-chain relationships","nansen profiler","address linkage","wallet association","entity resolution"],"warnings":["No standalone documentation pages found at api.nansen.ai/docs or similar paths; all info derived from OpenAPI spec.","Example response is inferred from the schema, not captured from a live call."],"endpointUrl":"https://api.nansen.ai/api/v1/profiler/address/related-wallets","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f","amount":"10000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300},{"asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","extra":{"feePayer":"2wKupLR9q6wXYppw8Gr2NvWxKBUqm4PPJKkQfoxHDBg4"},"payTo":"J7ZvJEspvwP1oRxQZ7mYmNmT22NTm3GWq3t7HEbvPZYx","amount":"10000","scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","maxTimeoutSeconds":300}]},"qualityScore":"0.880","qualityRationale":"Full OpenAPI 3.1 schema with detailed request/response models, live 402 challenge confirmed, clear pricing ($0.01/call), and 24 supported chains documented. Docked slightly because no example response was captured from the live endpoint and crawled docs pages returned 404s (only the OpenAPI spec was 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'1':169 '10':162 '1000':114 '24':98 '402':156 'accept':66 'across':190 'address':7,24,46,72,93 'address graph' 'address linkage' 'address-profiling' 'analysi':208 'api':17,34 'arbitrum':105 'balanc':205 'base':104 'bitcoin':103 'blockchain':6,23,45,191 'call':142 'chain':11,28,53,74,99 'challeng':157 'cluster':180 'complement':197 'complianc':181 'confirm':150 'cost':160 'counterparti':203 'credit':159,163,170 'data':196 'default':123 'detail':79,89 'endpoint':36,96,152,201 'entiti':188 'entity resolution' 'ethereum':101 'field':125 'find':1,18 'fix':137 'free':166 'fund':184 'given':44 'http':155 'identifi':183 'includ':78,100 'indic':135 'info':130 'inform':80,91 'interact':12,29,54 'investig':182 'label':94 'like':202 'live':154 'map':187 'multi-chain-support' 'nansen':14,31,61,199 'nansen profiler' 'on-chain':9,26,51 'on-chain relationships' 'on-chain-graph-analysis' 'openapi':133 'order':124 'other':108 'page':116 'pagin':111 'paginated-results' 'paramet':75 'part':59 'payment':129 'per':115,141 'pnl':207 'polygon':106 'post':68 'price':138 'pro':173 'probe':149 'profil':16,33,63,200 'protocol':146 'relat':3,20,41,83,194 'related wallets' 'related-wallet':193 'relationship':56,86,189 'request':69 'respons':77 'result':109 'return':37,158 'solana':102 'sort':120 'sourc':185 'spec':134 'suit':64 'support':97 'tier':167,174 'time':90 'transact':88,204 'type':49,87 'use':177 'various':48 'via':13,30,143 'wallet':2,19,38,84,179,195 'wallet association' 'wallet clustering' 'wallet connections' 'wallet-relationship-mapping' 'x':128 'x-payment-info':127 'x402':145 'x402-payment'","prices":[{"id":"31bee795-ed62-4d16-a84f-24a74802d4b0","listingId":"47bb8dc1-d133-46f7-932b-4bdebbf809a4","amountUsd":null,"unit":"per_call","nativeCurrency":"USD COIN","nativeAmount":null,"chain":"base","payTo":"0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f","paymentMethod":"x402-usd coin","isPrimary":true,"details":{"scheme":"exact","accepts_all":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x93053f1e7A5eFEDa532Fe69CbbE43cBEc3A0F13f","amount":"10000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300},{"asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","extra":{"feePayer":"2wKupLR9q6wXYppw8Gr2NvWxKBUqm4PPJKkQfoxHDBg4"},"payTo":"J7ZvJEspvwP1oRxQZ7mYmNmT22NTm3GWq3t7HEbvPZYx","amount":"10000","scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:40.664Z"}],"sources":[{"listingId":"47bb8dc1-d133-46f7-932b-4bdebbf809a4","source":"x402_bazaar","sourceId":"https://api.nansen.ai/api/v1/profiler/address/related-wallets","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:40.664Z","lastSeenAt":"2026-04-22T05:32:33.474Z"}],"details":{"listingId":"47bb8dc1-d133-46f7-932b-4bdebbf809a4","quickStartSnippet":"curl -X POST https://api.nansen.ai/api/v1/profiler/address/related-wallets \\\n  -H 'Content-Type: application/json' \\\n  -H 'Payment-Signature: <x402_payment>' \\\n  -d '{\"address\": \"0x28c6c06298d514db089934071355e5743bf21d60\", \"chain\": \"ethereum\", \"pagination\": {\"page\": 1, \"per_page\": 10}}'","exampleRequest":{"chain":"ethereum","address":"0x28c6c06298d514db089934071355e5743bf21d60","pagination":{"page":1,"per_page":10}},"exampleResponse":{"data":[{"chain":"ethereum","order":1,"address":"0x742d35cc6634c0532925a3b8d4c9db96c4b4d8b6","relation":"funded_by","address_label":"Binance Hot Wallet","block_timestamp":"2024-06-15T08:30:00Z","transaction_hash":"0xabc123def456..."}],"pagination":{"page":1,"per_page":10,"is_last_page":false}},"schema":null,"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint price is $0.01 per call via x402 protocol","source_url":"https://api.nansen.ai/openapi.json"},{"claim":"Credit cost is 10 (free tier) / 1 (pro tier) per call","source_url":"https://api.nansen.ai/openapi.json"},{"claim":"Supports 24 chains including ethereum, solana, bitcoin, base, arbitrum, polygon, etc.","source_url":"https://api.nansen.ai/openapi.json"},{"claim":"Endpoint returns related wallets with relationship type, transaction hash, timestamp, and address labels","source_url":"https://api.nansen.ai/openapi.json"},{"claim":"Endpoint is live and returned HTTP 402 x402 payment challenge","source_url":"https://api.nansen.ai/api/v1/profiler/address/related-wallets"}],"useCases":["Identify wallets controlled by the same entity through funding and interaction patterns","Map the on-chain social graph of a specific address for compliance or research","Discover funding sources and related addresses for due diligence","Automate wallet clustering in investigative or analytical pipelines","Enrich address profiles with relationship context before trading decisions"],"bestFor":["Blockchain investigators tracing fund flows and wallet ownership","Compliance teams performing KYC/AML address screening","Quantitative researchers building wallet-entity graphs","AI agents that need to expand an address into its related cluster"],"notFor":["Real-time trading signals or price data","Off-chain identity resolution (no PII returned)","Free-tier bulk scraping (credit-gated, 10 credits per call on free plan)"],"kindDetails":{},"updatedAt":"2026-04-22T02:56:45.349Z"}}