# Services from api.blockscout.com on Zero

> api.blockscout.com serves 199 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/api.blockscout.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/api.blockscout.com/health.json

## Services

- [Blockscout Address Lookup](https://www.zero.xyz/c/blockscout-address-lookup-9caf46da/llms.txt): $0.002/call via x402. Retrieve detailed on-chain information about a specific blockchain address or smart contract by chain and address hash
- [Blockscout Token Holders List](https://www.zero.xyz/c/blockscout-token-holders-list-92bf7854/llms.txt): $0.002/call via x402. Returns a paginated list of addresses holding a specific token on a given blockchain, sorted by balance in descending order
- [Blockscout Transaction Detail Lookup](https://www.zero.xyz/c/blockscout-transaction-detail-lookup-08d88576/llms.txt): $0.002/call via x402. Retrieves detailed information about a specific blockchain transaction by its hash on a given chain via Blockscout's explorer API
- [Blockscout Token Info API](https://www.zero.xyz/c/blockscout-token-info-api-f3e36b85/llms.txt): $0.002/call via x402. Retrieve detailed metadata and on-chain information about a specific ERC-20 or other token by its contract address on a given blockchain
- [Blockscout Smart Contract Lookup](https://www.zero.xyz/c/blockscout-smart-contract-lookup-596f5c4d/llms.txt): $0.002/call via x402. Retrieves detailed verified smart contract information for a given contract address on a specified blockchain network
- [Blockscout Address Event Logs](https://www.zero.xyz/c/blockscout-address-event-logs-15d38602/llms.txt): $0.002/call via x402. Retrieves paginated event logs emitted by or involving a specific blockchain address on a given chain
- [Blockscout Address Transactions API](https://www.zero.xyz/c/blockscout-address-transactions-api-2a8220f6/llms.txt): $0.002/call via x402. Lists all transactions involving a specific blockchain address, with optional to/from filtering and pagination
- [Blockscout Block Internal Transactions](https://www.zero.xyz/c/blockscout-block-internal-transactions-a0b37833/llms.txt): $0.002/call via x402. Retrieves all internal transactions within a specific block on a given blockchain network via Blockscout's multichain explorer API
- [Blockscout Block Transactions Endpoint](https://www.zero.xyz/c/blockscout-block-transactions-endpoint-89a64d3d/llms.txt): $0.002/call via x402. Retrieves all transactions contained within a specific block on a given blockchain network, identified by block hash or number
- [Blockscout Internal Transactions Lookup](https://www.zero.xyz/c/blockscout-internal-transactions-lookup-126974a9/llms.txt): $0.002/call via x402. Retrieves all internal transactions (call traces) for a specific transaction hash on a given blockchain network via Blockscout's multichain explorer API
- [Blockscout Address Coin Balance History](https://www.zero.xyz/c/blockscout-address-coin-balance-history-f7895a16/llms.txt): $0.002/call via x402. Retrieves the historical native coin balance changes for a specific address on a given blockchain network
- [Blockscout Account Abstraction Operations Explorer](https://www.zero.xyz/c/blockscout-account-abstraction-operations-explorer-8fc59a8c/llms.txt): $0.002/call via x402. Retrieves paginated ERC-4337 UserOperation records for a specific blockchain network, filterable by sender, bundler, paymaster, factory, entry point, transaction hash, and block number
- [Blockscout Token Info by Address](https://www.zero.xyz/c/blockscout-token-info-by-address-042d7180/llms.txt): $0.002/call via x402. Fetch detailed metadata and market data for an ERC-20 or other token by its contract address on a specific blockchain network
- [Blockscout Smart Contract Details by Chain](https://www.zero.xyz/c/blockscout-smart-contract-details-by-chain-8b6eb061/llms.txt): $0.002/call via x402. Fetches full verified smart contract metadata for a given address on a specified blockchain network, including ABI, source code, compiler settings, and verification status.
- [Blockscout Transaction Raw Trace](https://www.zero.xyz/c/blockscout-transaction-raw-trace-2981113c/llms.txt): $0.002/call via x402. Retrieves the raw execution trace of a specific transaction on a given blockchain network via Blockscout's multichain explorer API
- [Blockscout Address Token Balances](https://www.zero.xyz/c/blockscout-address-token-balances-38907099/llms.txt): $0.002/call via x402. Returns all token balances (ERC-20, ERC-721, ERC-1155) held by a specific address on a given blockchain network
- [Blockscout Transaction Summary by Chain](https://www.zero.xyz/c/blockscout-transaction-summary-by-chain-faf73419/llms.txt): $0.002/call via x402. Fetches a human-readable summary of a specific transaction on a given blockchain network via Blockscout's multichain explorer API
- [Blockscout Internal Transactions by Address](https://www.zero.xyz/c/blockscout-internal-transactions-by-address-7551d5f2/llms.txt): $0.002/call via x402. Retrieves a paginated list of internal transactions for a specific address on a given blockchain network via Blockscout's multichain explorer API
- [Blockscout Account Abstraction Operation Lookup](https://www.zero.xyz/c/blockscout-account-abstraction-operation-lookup-32502116/llms.txt): $0.002/call via x402. Retrieves detailed data for a specific ERC-4337 account abstraction UserOperation by its hash on a given blockchain network
- [Blockscout BENS Domain Lookup](https://www.zero.xyz/c/blockscout-bens-domain-lookup-790760c0/llms.txt): $0.015/call via x402. Looks up blockchain domain names (ENS and other naming protocols) across multiple chains, returning owner, resolved address, protocol, and registration metadata
- [Blockscout Multichain NFT Search](https://www.zero.xyz/c/blockscout-multichain-nft-search-cb23d98c/llms.txt): $0.012/call via x402. Search for NFTs by name, symbol, or keyword across multiple blockchain networks within a specified cluster
- [Blockscout Multichain Quick Search](https://www.zero.xyz/c/blockscout-multichain-quick-search-7e9759fb/llms.txt): $0.01/call via x402. Quickly searches across multiple blockchain networks for transactions, addresses, tokens, NFTs, dapps, blocks, and domains by a query string
- [Blockscout Multichain Blockchain Search](https://www.zero.xyz/c/blockscout-multichain-blockchain-search-64e7976f/llms.txt): $0.002/call via x402. Search for transactions, addresses, tokens, and dapps across multiple blockchain networks by chain ID using a query string
- [Blockscout Address Details Lookup](https://www.zero.xyz/c/blockscout-address-details-lookup-3726ca47/llms.txt): $0.002/call via x402. Fetches comprehensive on-chain details for a specific blockchain address on a given chain, including balance, contract status, token holdings, ENS name, and reputation metadata.
- [Blockscout Token Counters by Chain](https://www.zero.xyz/c/blockscout-token-counters-by-chain-d3695ca9/llms.txt): $0.002/call via x402. Returns transfer count and holder count statistics for a specific token contract on a given blockchain network
- [Blockscout Address Token Holdings Lookup](https://www.zero.xyz/c/blockscout-address-token-holdings-lookup-35440b7a/llms.txt): $0.002/call via x402. Retrieves all tokens held by a specific blockchain address on a given chain via Blockscout's multichain explorer
- [Blockscout Multichain Token Search](https://www.zero.xyz/c/blockscout-multichain-token-search-9fb6aef6/llms.txt): $0.012/call via x402. Search for tokens by name or symbol across multiple blockchain networks within a specified cluster, returning token metadata including market data and chain deployment info
- [Blockscout Advanced Filters – Multichain Transaction Search](https://www.zero.xyz/c/blockscout-advanced-filters-multichain-transaction-search-6c2448fb/llms.txt): $0.005/call via x402. Queries filtered blockchain transactions, token transfers, and internal transactions across a specific chain using advanced criteria like address, token, method, amount, and time range
- [Blockscout NFT Collections by Address](https://www.zero.xyz/c/blockscout-nft-collections-by-address-a7d5d734/llms.txt): $0.002/call via x402. Retrieves all NFT collections held by a specific blockchain address on a given chain, including token metadata and individual NFT instances
- [Blockscout Address Event Logs API](https://www.zero.xyz/c/blockscout-address-event-logs-api-0995ef52/llms.txt): $0.002/call via x402. Retrieves paginated smart contract event logs emitted by a specific address on a given blockchain network
- [Blockscout Transaction Logs by Chain](https://www.zero.xyz/c/blockscout-transaction-logs-by-chain-ed39d830/llms.txt): $0.002/call via x402. Retrieves paginated event logs emitted by a specific transaction on a given blockchain network via Blockscout's multichain explorer API
- [Blockscout Multichain Address Lookup](https://www.zero.xyz/c/blockscout-multichain-address-lookup-ae6c0c52/llms.txt): $0.002/call via x402. Retrieves a paginated list of blockchain addresses with balances, transaction counts, tags, and metadata for a specified chain
- [Blockscout Transaction Lookup by Chain](https://www.zero.xyz/c/blockscout-transaction-lookup-by-chain-32bb8e5e/llms.txt): $0.002/call via x402. Fetches detailed on-chain transaction data for a specific transaction hash on a specified blockchain network via Blockscout's multichain explorer API
- [Blockscout Transaction Token Transfers](https://www.zero.xyz/c/blockscout-transaction-token-transfers-8230888b/llms.txt): $0.002/call via x402. Retrieves all token transfers (ERC-20, ERC-721, ERC-1155, etc.) associated with a specific transaction hash on a given blockchain network
- [Blockscout Internal Transactions API](https://www.zero.xyz/c/blockscout-internal-transactions-api-c6ec89c1/llms.txt): $0.002/call via x402. Retrieves internal transactions (traces) for a specific transaction on a given blockchain network via Blockscout's multichain explorer
- [Blockscout BENS Address Lookup](https://www.zero.xyz/c/blockscout-bens-address-lookup-9a363022/llms.txt): $0.015/call via x402. Look up blockchain name service (ENS and other protocol) registrations associated with a given address across multiple chains
- [Blockscout Block Details by Chain](https://www.zero.xyz/c/blockscout-block-details-by-chain-24224ad7/llms.txt): $0.002/call via x402. Retrieve detailed metadata for a specific block by hash or number on a given blockchain network via Blockscout's multichain explorer API
- [Blockscout Transaction State Changes](https://www.zero.xyz/c/blockscout-transaction-state-changes-13791c69/llms.txt): $0.002/call via x402. Retrieves all state changes (balance and token changes) caused by a specific transaction on a given blockchain network
- [Blockscout Blocks API](https://www.zero.xyz/c/blockscout-blocks-api-f6bfe611/llms.txt): $0.002/call via x402. Retrieves paginated block data for a specified blockchain network via Blockscout's multichain explorer
- [Blockscout Address Token Transfers](https://www.zero.xyz/c/blockscout-address-token-transfers-b4681958/llms.txt): $0.002/call via x402. Retrieve paginated token transfer history for a specific address on a given blockchain network via Blockscout's multichain explorer
- [Blockscout Token Transfers API](https://www.zero.xyz/c/blockscout-token-transfers-api-246dcac9/llms.txt): $0.002/call via x402. Retrieve paginated token transfer events (ERC-20, ERC-721, ERC-1155) for a specific blockchain network via chain ID
- [Blockscout Multichain Transaction List API](https://www.zero.xyz/c/blockscout-multichain-transaction-list-api-c27e5519/llms.txt): $0.002/call via x402. Retrieves a paginated list of transactions on a specified blockchain network, with rich metadata including fees, gas, token transfers, and decoded inputs
- [Blockscout Multichain Quick Search](https://www.zero.xyz/c/blockscout-multichain-quick-search-71162103/llms.txt): $0.012/call via x402. Performs a fast cross-chain search across multiple blockchain networks, returning matching transactions, addresses, tokens, NFTs, blocks, domains, and dapps within a specified cluster
- [Blockscout Token Transfers by Address](https://www.zero.xyz/c/blockscout-token-transfers-by-address-fd00a78b/llms.txt): $0.002/call via x402. Retrieves paginated transfer history for a specific ERC-20/ERC-721/ERC-1155 token contract on a given blockchain network
- [Blockscout Address Transactions Lookup](https://www.zero.xyz/c/blockscout-address-transactions-lookup-2467b710/llms.txt): $0.002/call via x402. Retrieves paginated transaction history for a specific address on a given blockchain network via Blockscout's multichain explorer API
- [Blockscout Address Tabs Counters](https://www.zero.xyz/c/blockscout-address-tabs-counters-1ea52785/llms.txt): $0.002/call via x402. Returns summary activity counts (transactions, logs, token transfers, internal transactions, withdrawals, validations, token balances) for a specific blockchain address on a given chain
- [Blockscout NFT Holdings Lookup by Address](https://www.zero.xyz/c/blockscout-nft-holdings-lookup-by-address-7bb19234/llms.txt): $0.002/call via x402. Returns all NFT tokens owned by a specific blockchain address on a given chain, including metadata, media URLs, and token details
- [Blockscout Token Holders List](https://www.zero.xyz/c/blockscout-token-holders-list-117877fb/llms.txt): $0.002/call via x402. Returns a paginated list of addresses holding a specific token on a given blockchain network, sorted by balance
- [Blockscout Transaction Blob Data Fetcher](https://www.zero.xyz/c/blockscout-transaction-blob-data-fetcher-efcfde96/llms.txt): $0.002/call via x402. Retrieves EIP-4844 blob data associated with a specific transaction on a given blockchain network via Blockscout's multichain explorer
- [Blockscout NFT Token Instances by Contract](https://www.zero.xyz/c/blockscout-nft-token-instances-by-contract-5389eaa5/llms.txt): $0.002/call via x402. Returns paginated NFT instances (with metadata, media URLs, and ownership) for a given token contract address on a specified blockchain network
- [Blockscout NFT Token Instance Transfer History](https://www.zero.xyz/c/blockscout-nft-token-instance-transfer-history-4900fa3c/llms.txt): $0.002/call via x402. Retrieves the paginated transfer history for a specific NFT token instance (by token ID) on a given blockchain network via Blockscout's multichain explorer
- [Blockscout Token List API](https://www.zero.xyz/c/blockscout-token-list-api-fc7ef079/llms.txt): $0.003/call via x402. Retrieves a paginated list of tokens on a specified blockchain network, with filtering and sorting options
- [Blockscout Address Counters](https://www.zero.xyz/c/blockscout-address-counters-cf7ba7fd/llms.txt): $0.002/call via x402. Returns aggregate activity counters for a blockchain address on a specific chain, including transaction count, token transfer count, gas usage, and validation count
- [Blockscout Chain Stats API](https://www.zero.xyz/c/blockscout-chain-stats-api-79fc9290/llms.txt): $0.002/call via x402. Retrieve real-time blockchain network statistics and metrics for a specified chain via Blockscout
- [Blockscout Market Chart Data for Chain](https://www.zero.xyz/c/blockscout-market-chart-data-for-chain-650f2467/llms.txt): $0.002/call via x402. Returns historical market chart data (price, market cap, TVL) for a specific blockchain network
- [Blockscout Beacon Deposit List for Address](https://www.zero.xyz/c/blockscout-beacon-deposit-list-for-address-3da8591c/llms.txt): $0.002/call via x402. Retrieves a paginated list of Ethereum beacon chain deposit events associated with a specific address on a given blockchain network
- [Blockscout Account Abstraction Factory Lookup](h

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