{"uid":"cap_eehn4iupNeG_o2ueKHbnV","slug":"blockscout-multichain-blockchain-search-64e7976f","name":"Blockscout Multichain Blockchain Search","description":"Explore crypto activities with Blockscout's multichain search. Find transactions, addresses, tokens, and dapps across top blockchain networks — your go-to explorer for cross-chain blockchain data","url":"https://api.blockscout.com/%7Bchain_id%7D/api/v2/search","method":"GET","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","HEAD","DELETE"],"type":"string"},"pathParams":{"type":"object","properties":{"chain_id":{"type":"string"}}},"queryParams":{"type":"object","properties":{"q":{"type":"string"},"blob":{"type":"object"},"block":{"type":"object"},"label":{"type":"object"},"token":{"type":"object"},"address":{"type":"object"},"contract":{"type":"object"},"ens_domain":{"type":"object"},"metadata_tag":{"type":"object"},"tac_operation":{"type":"object"},"user_operation":{"type":"object"},"next_page_params_type":{"type":"string"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"items":[{}],"next_page_params":{}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_27bpX9Rj5KprybR6X8HXP","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Search for transactions, addresses, tokens, and dapps across multiple blockchain networks by chain ID using a query string","exampleAgentPrompt":"Can you search Blockscout for the address 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 on Ethereum (chain ID 1) and tell me what comes up?","exampleUseCases":[{"title":"Token lookup across chains","prompt":"Search Blockscout on Polygon (chain ID 137) for a token called 'USDC' and give me the contract address and any matching tokens you find."},{"title":"Transaction hash investigation","prompt":"I have a transaction hash 0xabc123... and I need to know what it is — can you search for it on Arbitrum using Blockscout's multichain search?"},{"title":"ENS domain resolution lookup","prompt":"Look up 'vitalik.eth' on Ethereum mainnet using Blockscout and tell me what address it resolves to and any related blockchain activity."}],"resultDescription":"A paginated JSON response containing an array of matching items (addresses, tokens, transactions, blocks, contracts, ENS domains, dapps, labels, user operations) relevant to the query, along with next_page_params for fetching additional results.","failureModes":["Invalid or unsupported chain_id returns empty results or an error","Empty or overly broad query string returns too many irrelevant results","Malformed address or hash returns no matching items","Rate limiting or payment failure (402) if USDC balance is insufficient","Chain not indexed by Blockscout returns no results","Pagination token mismatch causes unexpected result sets"],"whenToPreferThis":"Use this endpoint when you need to search across blockchain data (addresses, transactions, tokens, contracts, ENS names) on a specific chain supported by Blockscout, especially when you need a flexible keyword or identifier search rather than a direct structured lookup. Prefer this over chain-specific explorers when you want a unified API interface with consistent response format across multiple EVM-compatible networks.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-10T06:42:47.794Z","isFirstParty":false}