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MCP Blockchain Tools
MCPOpen SourceMIT10.0
by rjn32s • Blockchain & Crypto
An MCP server that provides on-demand Ethereum utilities—address validation, gas estimation, balance checks, and contract ownership lookup—for integration with MCP clients like Claude.
Example Use Cases
- 1
Validate Ethereum addresses (including checksum verification) before performing on-chain operations or storing addresses.
- 2
Estimate current gas fees (base fee and gas price in Gwei) using public Ethereum RPC to price or simulate transactions.
- 3
Check ETH wallet balances or verify whether a smart contract implements Ownable and retrieve its owner address.
Description
MCP Blockchain Tools is a lightweight MCP server offering common Ethereum utilities: checksum address validation, gas fee estimation via public RPC, ETH balance queries, and Ownable contract ownership checks. It's designed for easy integration with Claude Desktop or any MCP-compatible client, enabling agents to perform blockchain queries programmatically. The server is distributed as an installable command-line tool and is intended to simplify common on-chain checks without requiring direct RPC handling in the agent.
Capabilities(5 total)
Tools (5)
validate_ethereum_address
Validate if a given string is a valid Ethereum address. Args: address: Ethereum address to validate
address:string*
estimate_gas_fee
Estimate current gas fees on Ethereum mainnet using public RPC.
check_wallet_balance
Check ETH balance of a wallet address using public RPC. Args: address: Ethereum wallet address
address:string*
check_contract_owner
Check if a contract implements an Ownable-style interface and return its owner. This function: 1. Handles proxy contracts (EIP-1967) 2. Checks both proxy and implementation owners 3. Tries multiple owner-style methods 4. Falls back to reading storage slots Args: address: Smart contract address
address:string*
calculate_transaction_cost
Calculate the estimated cost for different types of transactions. Args: transaction_type: Type of transaction (basic_transfer, erc20_transfer, nft_transfer, uniswap_swap, contract_deploy)
transaction_type:string*
Quick Actions
Security
Scanned 2 month(s) agoRisk Level
MINIMAL
Read-only data retrieval, no side effects
Trust Score
C57/100
8/17 checks passed
Scores are informational only and provided “as is” without warranty. AgentHotspot assumes no liability for actions taken based on these ratings.
Quick Stats
Service TypeMCP
Pricing ModelFree
Capabilities5 Tools / 0 Prompts / 0 Resources
Ownerrjn32s
CategoryBlockchain & Crypto
DependenciesStandalone
Tags
BlockchainWalletGas pricingOn-chain data