blockscout

Blockscout MCP tool reference for on-chain data queries. Covers all 16 tools: address info, transactions, token transfers, NFTs, contract ABI/source, read-only calls, ENS resolution, and block data across 8+ chains. TRIGGER when: user asks about on-chain data, contract state, token balances, transaction history, ENS lookup, NFT holdings, or uses blockscout MCP tools. DO NOT TRIGGER when: user asks about crypto market prices or trading volume (use coingecko skill), or writing Solidity code (use solidity-audit skill).

Blockscout MCP

On-chain data queries via Blockscout MCP server (already configured). 16 tools across address intelligence, transactions, contracts, and blocks.

Chain support

EVM-only. Blockscout covers 90+ EVM chains. Not available for native Solana or Tron -- use CoinGecko contract endpoints for token data on those chains.

Solana via Neon EVM: Chain 245022934 covers the Neon EVM layer on Solana (EVM-compatible contracts deployed on Solana).

Common chain IDs

ChainIDChainID
Ethereum1Arbitrum One42161
Polygon137OP Mainnet10
Base8453zkSync Era324
Gnosis100Scroll534352
Celo42220Mode34443
Neon EVM (Solana)245022934Filecoin314

Default: Ethereum (1). Use get_chains_list to discover all 90+ supported chains.

Reference

FileTopic
tools-reference.mdAll 16 tools grouped by category
usage-patterns.mdCommon workflows, pagination, error handling

What You Get

  • Reference documentation for all 16 Blockscout MCP tools covering address intelligence, transactions, contracts, and block data.
  • Chain ID lookup tables and common usage patterns for querying on-chain state across 90+ EVM chains.
  • Pagination handling, error recovery, and time-based query guidance for efficient data retrieval.

See also

  • coingecko -- market prices, volumes, DEX pools, trending tokens
  • sentinel -- automated contract monitoring with alert rules
  • ethskills -- framework selection, RPC providers, EIP/ERC standards
  • solidity-audit -- smart contract security patterns and audit methodology