{"uid":"cap_pjLcsLKy7jPvDbs88LTiP","slug":"blockscout-multichain-cluster-chains-lookup-1d2707c4","name":"Blockscout Multichain Cluster Chains Lookup","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/services/multichain/api/v1/clusters/%7Bcluster_id%7D/chains","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":{"cluster_id":{"type":"string"}}},"queryParams":{"type":"object","properties":{"sort":{"type":"string"},"order":{"type":"string"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"items":[{"id":"string","name":"string","icon_url":"string","explorer_url":"string"}]}},"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_kCp6seh4knuVEvkysLT4e","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":"Lists all blockchain chains associated with a specific multichain cluster on Blockscout","exampleAgentPrompt":"Using Blockscout's multichain explorer, show me all the blockchain chains included in cluster ID 'eth-mainnet-cluster', sorted by name in ascending order.","exampleUseCases":[{"title":"Discover networks in a DeFi cluster","prompt":"Can you pull up all the blockchain networks that belong to Blockscout cluster 'defi-top-chains' so I can see which chains my portfolio spans?"},{"title":"Cross-chain dapp network coverage check","prompt":"I'm building a multichain dapp — use Blockscout to list every chain in cluster 'evm-compatible' so I know which networks I need to support."},{"title":"Populate chain selector UI from cluster","prompt":"Fetch all chains under Blockscout cluster 'layer2-networks', sorted ascending, so I can populate a dropdown in my cross-chain dashboard."}],"resultDescription":"Returns a JSON array of chain objects, each containing the chain's ID, display name, icon URL, and the Blockscout explorer URL for that chain within the specified cluster.","failureModes":["Invalid or unknown cluster_id returns an empty list or 404 error","Missing required cluster_id path parameter results in a 400 bad request","Invalid sort/order query parameter values may return an error or default ordering","Network timeouts or service unavailability return 5xx errors","Payment failure (insufficient USDC balance for x402 protocol) blocks access"],"whenToPreferThis":"Use this endpoint when you need to programmatically enumerate which specific blockchain networks belong to a Blockscout multichain cluster, especially for populating UI selectors, validating chain coverage, or building cross-chain dashboards. Prefer this over generic chain-list endpoints when your workflow is already oriented around Blockscout cluster IDs and you need explorer URLs alongside chain metadata.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-12T00:38:20.726Z","isFirstParty":false}