blockscout

name	blockscout
description	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).
metadata	{"author":"DROOdotFOO","version":"1.0.0","tags":"blockscout, blockchain, onchain, mcp, ethereum, web3"}

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

Chain	ID	Chain	ID
Ethereum	1	Arbitrum One	42161
Polygon	137	OP Mainnet	10
Base	8453	zkSync Era	324
Gnosis	100	Scroll	534352
Celo	42220	Mode	34443
Neon EVM (Solana)	245022934	Filecoin	314

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

Reference

File	Topic
tools-reference.md	All 16 tools grouped by category
usage-patterns.md	Common 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