{"id":"fd569db7-0714-48c6-bda2-a91cfbef206b","shortId":"gLMcYC","kind":"mpp","title":"Look up blockchain transactions with token and NFT transfer details via Nansen's on-chain analytics API.","tagline":"Look up blockchain transactions with token and NFT transfer details via Nansen's on-chain analytics API.","description":"This endpoint retrieves comprehensive information about a specific blockchain transaction, including native cryptocurrency movements, ERC-20 token transfers, and NFT transfers with both historical and current USD valuations. It is part of Nansen's broader API suite for blockchain analytics and smart money intelligence.\n\nThe endpoint accepts a POST request with a chain identifier, transaction hash, and block timestamp. It returns detailed data including sender/receiver addresses with Nansen labels, native value transferred with dated and current USD prices, token transfer arrays with per-token USD values, and NFT transfer arrays with collection metadata. Supported chains include Ethereum, Base, Arbitrum, Solana, Polygon, BNB, and many others (24+ chains total).\n\nPricing is $0.01 per call via the x402 protocol, or 10 credits (free tier) / 1 credit (pro tier) when using a Nansen API key. The endpoint returns standard rate-limit headers and credits-remaining headers. Authentication is via API key or x402 payment signature. The API is documented with a full OpenAPI 3.1.0 schema.","tags":["blockchain","smart-money","wallet","tokens","defi","analytics","profiler","dex","pnl","onchain","prediction-market"],"capabilities":["transaction-lookup","token-transfer-details","nft-transfer-details","address-labeling","multi-chain-support","usd-valuation","x402-payment"],"categories":["blockchain","analytics"],"synonyms":["transaction details","tx lookup","token transfer","NFT transfer","blockchain transaction","on-chain transaction","Nansen transaction","tx hash lookup","transaction receipt"],"warnings":["No external documentation pages were successfully crawled; docs endpoint returned 404","Response schema uses $ref to TransactionLookupListResponse which is defined in components but example response is inferred from schema, not from a live call"],"endpointUrl":"https://api.nansen.ai/api/v1/transaction-with-token-transfer-lookup","protocol":"mpp","transport":"http","auth":{"type":"mpp","details":{"realm":"api.nansen.ai","intent":"charge","method":"tempo","service_methods":{"tempo":{"assets":["0x20c000000000000000000000b9537d11c60e8b50"],"intents":["charge"]}}}},"qualityScore":"0.880","qualityRationale":"Full OpenAPI 3.1.0 schema with detailed request/response models, clear pricing ($0.01/call via x402), endpoint confirmed live via 402 MPP challenge, and 24+ supported chains documented. Minor deduction: no crawled documentation pages beyond the API root, and response schema references are not fully resolved in the 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'0.01':148 '1':160 '10':156 '24':143 '3.1.0':200 'NFT transfer' 'Nansen transaction' 'accept':83 'address':102 'address-labeling' 'analyt':17,35,76 'api':18,36,72,168,186,193 'arbitrum':136 'array':117,127 'authent':183 'base':135 'block':94 'blockchain':3,21,45,75 'blockchain transaction' 'bnb':139 'broader':71 'call':150 'chain':16,34,89,132,144 'collect':129 'comprehens':40 'credit':157,161,180 'credits-remain':179 'cryptocurr':49 'current':62,112 'data':99 'date':110 'detail':10,28,98 'document':195 'endpoint':38,82,171 'erc':51 'ethereum':134 'free':158 'full':198 'hash':92 'header':177,182 'histor':60 'identifi':90 'includ':47,100,133 'inform':41 'intellig':80 'key':169,187 'label':105 'limit':176 'look':1,19 'mani':141 'metadata':130 'money':79 'movement':50 'multi-chain-support' 'nansen':12,30,69,104,167 'nativ':48,106 'nft':8,26,56,125 'nft-transfer-details' 'on-chain':14,32 'on-chain transaction' 'openapi':199 'other':142 'part':67 'payment':190 'per':120,149 'per-token':119 'polygon':138 'post':85 'price':114,146 'pro':162 'protocol':154 'rate':175 'rate-limit':174 'remain':181 'request':86 'retriev':39 'return':97,172 'schema':201 'sender/receiver':101 'signatur':191 'smart':78 'solana':137 'specif':44 'standard':173 'suit':73 'support':131 'tier':159,163 'timestamp':95 'token':6,24,53,115,121 'token transfer' 'token-transfer-details' 'total':145 'transact':4,22,46,91 'transaction details' 'transaction receipt' 'transaction-lookup' 'transfer':9,27,54,57,108,116,126 'tx hash lookup' 'tx lookup' 'usd':63,113,122 'usd-valuation' 'use':165 'valu':107,123 'valuat':64 'via':11,29,151,185 'x402':153,189 'x402-payment'","prices":[{"id":"8358d921-809f-4383-bc4d-4414fb0d29aa","listingId":"fd569db7-0714-48c6-bda2-a91cfbef206b","amountUsd":"0.01","unit":"per_call","nativeCurrency":"pathUSD","nativeAmount":"10000","chain":"tempo","payTo":null,"paymentMethod":"mpp-tempo","isPrimary":true,"details":{"realm":"api.nansen.ai","intent":"charge","method":"tempo","dynamic":false,"decimals":6,"unit_type":null,"amount_hint":null,"raw_payment":{"amount":"10000","intent":"charge","method":"tempo","currency":"0x20c000000000000000000000b9537d11c60e8b50","decimals":6,"description":"Transaction with token transfer lookup"},"asset_contract":"0x20c000000000000000000000b9537d11c60e8b50"},"createdAt":"2026-04-18T19:59:11.869Z"}],"sources":[{"listingId":"fd569db7-0714-48c6-bda2-a91cfbef206b","source":"mpp_dev","sourceId":"nansen:POST:/api/v1/transaction-with-token-transfer-lookup","sourceUrl":"https://mpp.dev/api/services","isPrimary":true,"firstSeenAt":"2026-04-18T19:59:11.869Z","lastSeenAt":"2026-04-22T02:45:05.359Z"}],"details":{"listingId":"fd569db7-0714-48c6-bda2-a91cfbef206b","quickStartSnippet":"curl -X POST https://api.nansen.ai/api/v1/transaction-with-token-transfer-lookup \\\n  -H 'Content-Type: application/json' \\\n  -H 'apiKey: YOUR_API_KEY' \\\n  -d '{\n    \"chain\": \"ethereum\",\n    \"transaction_hash\": \"0xf16f93cb53f4f977d45b1b08af7b66e1939d0fe69d669012458239b23797e492\",\n    \"block_timestamp\": \"2025-08-06 01:47:11\"\n  }'","exampleRequest":{"chain":"ethereum","block_timestamp":"2025-08-06 01:47:11","transaction_hash":"0xf16f93cb53f4f977d45b1b08af7b66e1939d0fe69d669012458239b23797e492"},"exampleResponse":{"data":[{"chain":"ethereum","to_address":"0x742d35cc6634c0532925a3b8d4c9db96c4b4d8b6","from_address":"0x28c6c06298d514db089934071355e5743bf21d60","native_value":1.5,"receipt_status":1,"block_timestamp":"2025-08-06 01:47:11","to_address_label":"High Balance","transaction_hash":"0xf16f93cb53f4f977d45b1b08af7b66e1939d0fe69d669012458239b23797e492","dated_native_price":3200.5,"from_address_label":"Binance 14","nft_transfer_array":[],"current_native_price":3300,"token_transfer_array":[],"dated_native_value_usd":4800.75,"current_native_value_usd":4950}]},"schema":{"path":"/api/v1/transaction-with-token-transfer-lookup","method":"POST","payment":{"amount":"10000","intent":"charge","method":"tempo","currency":"0x20c000000000000000000000b9537d11c60e8b50","decimals":6,"description":"Transaction with token transfer lookup"},"description":"Transaction with token transfer lookup"},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint is POST /api/v1/transaction-with-token-transfer-lookup under the Profiler tag","source_url":"https://api.nansen.ai"},{"claim":"Price is $0.01 per call via x402 protocol, or 10 credits (free) / 1 credit (pro)","source_url":"https://api.nansen.ai"},{"claim":"Supported chains include ethereum, base, arbitrum, bitcoin, bnb, solana, polygon, and 17+ others","source_url":"https://api.nansen.ai"},{"claim":"Endpoint returns token_transfer_array and nft_transfer_array with USD valuations","source_url":"https://api.nansen.ai"},{"claim":"Endpoint is live, returning HTTP 402 on HEAD probe (MPP challenge)","source_url":"https://api.nansen.ai/api/v1/transaction-with-token-transfer-lookup"}],"useCases":["Retrieve full details of a blockchain transaction including all token and NFT transfers","Identify labeled addresses (exchanges, smart money, etc.) involved in a specific transaction","Get historical and current USD valuations for token transfers in a transaction","Audit or verify on-chain activity for compliance or research purposes","Build transaction explorers or notification systems with enriched Nansen label data"],"bestFor":["Agents needing enriched transaction data with Nansen address labels","On-chain forensics and wallet investigation workflows","Building transaction detail views in portfolio or analytics dashboards"],"notFor":["Streaming real-time transaction feeds (this is a single-tx lookup)","Bulk historical transaction scanning (use profiler/address/transactions for that)","Price feeds or market data (use token-ohlcv or token-screener instead)"],"kindDetails":{"docs":{"homepage":"https://docs.nansen.ai","apiReference":"https://docs.nansen.ai/nansen-api-reference"},"tags":["blockchain","smart-money","wallet","tokens","defi","analytics","profiler","dex","pnl","onchain","prediction-market"],"realm":"api.nansen.ai","status":"active","methods":{"tempo":{"assets":["0x20c000000000000000000000b9537d11c60e8b50"],"intents":["charge"]}},"provider":{"url":"https://nansen.ai","name":"Nansen"},"categories":["blockchain","data"],"service_id":"nansen","integration":"first-party","service_name":"Nansen","service_description":"Blockchain analytics and smart money intelligence. Token data, wallet profiling, DEX trades, PnL, and flow analysis across multiple chains."},"updatedAt":"2026-04-22T02:45:05.359Z"}}