Blockscout

Skill DROOdotFOO/agent-skills/skills/blockscout

Agent skills, autonomous agents, and MCP-companions for programming

Install

npx -y skills add DROOdotFOO/agent-skills --skill blockscout

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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-auditor skill).

SKILL.md

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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
Robinhood Chain	4663

Robinhood Chain (4663) is an Arbitrum Orbit L3 (native currency ETH), reachable by chain_id like any other -- no instance URL needed.

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

Discover a chain ID

For any chain not in the table -- Orbit L3s, new rollups, or chains with their own Blockscout instance (e.g. robinhoodchain.blockscout.com) -- pass a name substring to get_chains_list instead of assuming it is unsupported:

get_chains_list(query="robinhood")
  -> { name: "Robinhood Chain", chain_id: "4663", ecosystem: "Arbitrum Orbit" }

If a chain has a Blockscout explorer, it is almost certainly reachable through the MCP by chain_id -- you do not need the instance URL.

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.